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M. Kozanecki
Department of Molecular Physics, Lodz University of Technology, 90-924 Lodz, Poland

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Journal article
Published: 26 June 2021 in Materials
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In this work, we propose a novel method for the preparation of polypyrrole (PPy) layers on textile fabrics using a reactive inkjet printing technique with direct freezing of inks under varying temperature up to −16 °C. It was found that the surface resistance of PPy layers on polypropylene (PP) fabric, used as a standard support, linearly decreased from 6335 Ω/sq. to 792 Ω/sq. with the decrease of polymerization temperature from 23 °C to 0 °C. The lowest surface resistance (584 Ω/sq.) of PPy layer was obtained at −12 °C. The spectroscopic studies showed that the degree of the PPy oxidation as well as its conformation is practically independent of the polymerization temperature. Thus, observed tendences in electrical conductivity were assigned to change in PPy layer morphology, as it is significantly influenced by the reaction temperature: the lower the polymerization temperature the smoother the surface of PPy layer. The as-coated PPy layers on PP textile substrates were further assembled as the electrodes in symmetric all-solid-state supercapacitor devices to access their electrochemical performance. The electrochemical results demonstrate that the symmetric supercapacitor device made with the PPy prepared at −12 °C, showed the highest specific capacitance of 72.3 F/g at a current density of 0.6 A/g, and delivers an energy density of 6.12 Wh/kg with a corresponding power density of 139 W/kg.

ACS Style

Zbigniew Stempien; Mohmmad Khalid; Marcin Kozanecki; Paulina Filipczak; Angelika Wrzesińska; Ewa Korzeniewska; Elżbieta Sąsiadek. Inkjet Printing of Polypyrrole Electroconductive Layers Based on Direct Inks Freezing and Their Use in Textile Solid-State Supercapacitors. Materials 2021, 14, 3577 .

AMA Style

Zbigniew Stempien, Mohmmad Khalid, Marcin Kozanecki, Paulina Filipczak, Angelika Wrzesińska, Ewa Korzeniewska, Elżbieta Sąsiadek. Inkjet Printing of Polypyrrole Electroconductive Layers Based on Direct Inks Freezing and Their Use in Textile Solid-State Supercapacitors. Materials. 2021; 14 (13):3577.

Chicago/Turabian Style

Zbigniew Stempien; Mohmmad Khalid; Marcin Kozanecki; Paulina Filipczak; Angelika Wrzesińska; Ewa Korzeniewska; Elżbieta Sąsiadek. 2021. "Inkjet Printing of Polypyrrole Electroconductive Layers Based on Direct Inks Freezing and Their Use in Textile Solid-State Supercapacitors." Materials 14, no. 13: 3577.

Journal article
Published: 25 May 2021 in Beilstein Journal of Nanotechnology
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The resonance Raman effect (RRE) is a phenomenon which results in a strong selective enhancement of Raman signals from the samples. Previous studies showed that the RRE in liquid water directly corresponds to its supramolecular structure. It was also reported that the electric-field-induced orientation of water molecules on the electrode surface results in the surface-enhanced Raman scattering (SERS) effect. In this work, we show the SERS effect for water molecules in the dispersion of silver nanoparticles (AgNPs) without any external electrical field. An enhancement factor was estimated to be (4.8 ± 0.8) × 106 for an excitation wavelength of 514.5 nm and for AgNPs with an average size of 34 ± 14 nm. The temperature experiment results showed a higher enhancement with temperature increase. Performed simulation studies revealed a slowdown of the mobility of the water molecules close to the surface of AgNPs.

ACS Style

Paulina Filipczak; Krzysztof Hałagan; Jacek Ulański; Marcin Kozanecki. Surface-enhanced Raman scattering of water in aqueous dispersions of silver nanoparticles. Beilstein Journal of Nanotechnology 2021, 12, 497 -506.

AMA Style

Paulina Filipczak, Krzysztof Hałagan, Jacek Ulański, Marcin Kozanecki. Surface-enhanced Raman scattering of water in aqueous dispersions of silver nanoparticles. Beilstein Journal of Nanotechnology. 2021; 12 (1):497-506.

Chicago/Turabian Style

Paulina Filipczak; Krzysztof Hałagan; Jacek Ulański; Marcin Kozanecki. 2021. "Surface-enhanced Raman scattering of water in aqueous dispersions of silver nanoparticles." Beilstein Journal of Nanotechnology 12, no. 1: 497-506.

Journal article
Published: 10 April 2021 in Polymer
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Spherical nano-objects composed of poly(acrylic acid-stat-acrylamide)-block-polystyrene (P(AA-stat-Am)-b-PS) were prepared via polymerization induced self-assembly (PISA) and used as templates for the synthesis of hybrid [email protected](AA-stat-Am)-b-PS. These well-defined hybrids were used as effective surface-enhanced Raman spectroscopy (SERS) supports for adenine detection as targeting molecule. Due to the presence of acrylamide units, the interactions between carboxyl groups, –COOH and AgNP were tuned, leading to the improvement of SERS effect in comparison to the system based on PAA–b-PS. SERS activity for [email protected](AA56-stat-Am19)-b-PS375 (ratio 1:1) was ~20 times higher (36x104) as compared to the reference system; PAA86-b-PSt380.

ACS Style

Gokhan Demirci; Julita Muszyńska; Onur Cetinkaya; Paulina Filipczak; Yaoming Zhang; Grzegorz Nowaczyk; Krzysztof Halagan; Jacek Ulanski; Krzysztof Matyjaszewski; Joanna Pietrasik; Marcin Kozanecki. Effective SERS materials by loading Ag nanoparticles into poly(acrylic acid-stat-acrylamide)-block-polystyrene nano-objects prepared by PISA. Polymer 2021, 224, 123747 .

AMA Style

Gokhan Demirci, Julita Muszyńska, Onur Cetinkaya, Paulina Filipczak, Yaoming Zhang, Grzegorz Nowaczyk, Krzysztof Halagan, Jacek Ulanski, Krzysztof Matyjaszewski, Joanna Pietrasik, Marcin Kozanecki. Effective SERS materials by loading Ag nanoparticles into poly(acrylic acid-stat-acrylamide)-block-polystyrene nano-objects prepared by PISA. Polymer. 2021; 224 ():123747.

Chicago/Turabian Style

Gokhan Demirci; Julita Muszyńska; Onur Cetinkaya; Paulina Filipczak; Yaoming Zhang; Grzegorz Nowaczyk; Krzysztof Halagan; Jacek Ulanski; Krzysztof Matyjaszewski; Joanna Pietrasik; Marcin Kozanecki. 2021. "Effective SERS materials by loading Ag nanoparticles into poly(acrylic acid-stat-acrylamide)-block-polystyrene nano-objects prepared by PISA." Polymer 224, no. : 123747.

Journal article
Published: 22 March 2021 in Polymer
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Hydration in thermo-responsive polymer hydrogels, such us poly(oligo(ethylene glycol) methyl ether methacrylates) (POEGMAs) is a key factor in understanding their thermo-responsivity. The hydration of POEGMAs with different length of side groups was comprehensively studied for the first time. The comparative studies have shown that hydration of different hydrophilic centres in various POEGMAs is similar and independent of oligoether chain length. Only some quantitative differences in bound water structure, especially at the first stage of hydration have been found. However, the crystallinity (if it occurs) significantly impacts on the hydration process. Finally, the water structure is the closer to the bulk water structure in the fully swollen PMEO2MA hydrogel than in other POEGMA systems with longer oligoether side groups.

ACS Style

Krzysztof Piechocki; Marcin Kozanecki. Hydration in thermo-responsive oligoether methacrylate hydrogels studied by FT-IR spectroscopy. Polymer 2021, 223, 123638 .

AMA Style

Krzysztof Piechocki, Marcin Kozanecki. Hydration in thermo-responsive oligoether methacrylate hydrogels studied by FT-IR spectroscopy. Polymer. 2021; 223 ():123638.

Chicago/Turabian Style

Krzysztof Piechocki; Marcin Kozanecki. 2021. "Hydration in thermo-responsive oligoether methacrylate hydrogels studied by FT-IR spectroscopy." Polymer 223, no. : 123638.

Journal article
Published: 19 March 2021 in Polymer
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The molecular dynamics of poly(2-(2-methoxyethoxy)ethyl methacrylate), PMEO2MA, hydrogels with varying water contents were studied using broadband dielectric spectroscopy. Based on the water content, the PMEO2MA hydrogels were divided into two groups: (i) low water content systems (SD ≤ 0.5) with molecular dynamics dominated by polymer local and segmental movements and (ii) high water content systems (SD > 0.5) with molecular dynamics prevailing in water. In low water content systems, four molecular processes slightly affected by water were found. Two of the processes above Tg arise from segmental motions, while two processes observed below Tg relate to local motions of PMEO2MA. The water dynamics in high water content systems vary depending on the swelling degree and significantly differ from the molecular dynamics of pure water.

ACS Style

Anna Czaderna-Lekka; Marcin Kozanecki. Molecular dynamics of poly(2-(2-methoxyethoxy)ethyl methacrylate) hydrogels studied by broadband dielectric spectroscopy. Polymer 2021, 222, 123618 .

AMA Style

Anna Czaderna-Lekka, Marcin Kozanecki. Molecular dynamics of poly(2-(2-methoxyethoxy)ethyl methacrylate) hydrogels studied by broadband dielectric spectroscopy. Polymer. 2021; 222 ():123618.

Chicago/Turabian Style

Anna Czaderna-Lekka; Marcin Kozanecki. 2021. "Molecular dynamics of poly(2-(2-methoxyethoxy)ethyl methacrylate) hydrogels studied by broadband dielectric spectroscopy." Polymer 222, no. : 123618.

Paper
Published: 12 December 2020 in Journal of Materials Chemistry C
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Solution processable dielectric nanomaterials were prepared by the polymer-templated synthesis of hybrid nanoparticles containing TiO2.

ACS Style

Katarzyna Budzalek; Hangjun Ding; Lukasz Janasz; Aleksandra Wypych-Puszkarz; Onur Cetinkaya; Joanna Pietrasik; Marcin Kozanecki; Jacek Ulanski; Krzysztof Matyjaszewski. Star polymer–TiO2 nanohybrids to effectively modify the surface of PMMA dielectric layers for solution processable OFETs. Journal of Materials Chemistry C 2020, 9, 1269 -1278.

AMA Style

Katarzyna Budzalek, Hangjun Ding, Lukasz Janasz, Aleksandra Wypych-Puszkarz, Onur Cetinkaya, Joanna Pietrasik, Marcin Kozanecki, Jacek Ulanski, Krzysztof Matyjaszewski. Star polymer–TiO2 nanohybrids to effectively modify the surface of PMMA dielectric layers for solution processable OFETs. Journal of Materials Chemistry C. 2020; 9 (4):1269-1278.

Chicago/Turabian Style

Katarzyna Budzalek; Hangjun Ding; Lukasz Janasz; Aleksandra Wypych-Puszkarz; Onur Cetinkaya; Joanna Pietrasik; Marcin Kozanecki; Jacek Ulanski; Krzysztof Matyjaszewski. 2020. "Star polymer–TiO2 nanohybrids to effectively modify the surface of PMMA dielectric layers for solution processable OFETs." Journal of Materials Chemistry C 9, no. 4: 1269-1278.

Research article
Published: 11 December 2020 in The Journal of Physical Chemistry C
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We have observed for the first time the surface-enhanced (SE) signal of water in an aqueous dispersion of silver nanoparticles in spontaneous (SERS) and femtosecond stimulated Raman (SE-FSRS) processes with different wavelengths of the Raman pump (515, 715, and 755 nm). By estimating the fraction of water molecules that interact with the metal surface, we have calculated enhancement factors (EF): 4.8 × 106 for SERS and (3.6–3.7) × 106 for SE-FSRS. Furthermore, we have tested the role of simultaneous plasmon resonance and Raman resonance conditions for the aν1 + bν3 overtone mode of water (755 nm) in SE-FSRS signal amplification. When the wavelength of the Raman pump is within the plasmon resonance of the metal nanoparticles, the Raman resonance has a negligible effect on the EF. However, the Raman resonance with the aν1 + bν3 mode strongly enhances the signal of the fundamental OH stretching mode of water.

ACS Style

Paulina Filipczak; Marcin Pastorczak; Tomasz Kardaś; Michał Nejbauer; Czesław Radzewicz; Marcin Kozanecki. Spontaneous versus Stimulated Surface-Enhanced Raman Scattering of Liquid Water. The Journal of Physical Chemistry C 2020, 125, 1999 -2004.

AMA Style

Paulina Filipczak, Marcin Pastorczak, Tomasz Kardaś, Michał Nejbauer, Czesław Radzewicz, Marcin Kozanecki. Spontaneous versus Stimulated Surface-Enhanced Raman Scattering of Liquid Water. The Journal of Physical Chemistry C. 2020; 125 (3):1999-2004.

Chicago/Turabian Style

Paulina Filipczak; Marcin Pastorczak; Tomasz Kardaś; Michał Nejbauer; Czesław Radzewicz; Marcin Kozanecki. 2020. "Spontaneous versus Stimulated Surface-Enhanced Raman Scattering of Liquid Water." The Journal of Physical Chemistry C 125, no. 3: 1999-2004.

Research article
Published: 01 December 2020 in Polymers for Advanced Technologies
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The crystallinity affects the most of the properties of the products made of semi‐crystalline engineering polymers, such as poly (butylene terephthalate) (PBT) optical fiber loose buffer tubes. Precise control of crystallinity of PBT can be crucial for the quality of an optical fiber cable. Proper determination of crystallinity index from differential scanning calorimetry (DSC) measurements can be challenging for PBT as various processes occur between devitrification and melting that influence the initial crystallinity. Discrepancy between industrial and laboratory conditions leads to difficulties in transfer of laboratory‐scale procedures to technological processes. In this article, simple and time effective, small‐scale laboratory procedure based on Melt Flow Indexer was proposed for the preparation of samples with varying crystallinity indices to simulate industrial products of PBT extrusion, namely loose buffer tubes for optical fibers. Moreover, the conventional “linear” DSC method of characterization of PBT crystallinity index was revised with wide‐angle X‐ray scattering as the reference. Analysis showed the complexity of the thermal processes occurring in PBT melt‐extruded samples between Tg and Tm that strongly influenced the value of crystallinity index of PBT measured by DSC. These processes were identified and new semi‐empirical method of their extraction from the thermograms was proposed. Cold melting of the crystalline phase was found to have dominant contribution in the “pre‐melting” region that is between approx. 130°C and the onset of the fundamental melting peak, with only minor interrupting low‐intensity exothermic event. The contribution of this “pre‐melting” endotherm was more significant for the samples cooled at lower rates.

ACS Style

Maciej Danek; Mateusz Lutomski; Waldemar Maniukiewicz; Marcin Kozanecki. The crystallinity of poly(butylene terephthalate) in mass‐scale extrusion products as seen by differential scanning calorimetry. Polymers for Advanced Technologies 2020, 32, 1272 -1287.

AMA Style

Maciej Danek, Mateusz Lutomski, Waldemar Maniukiewicz, Marcin Kozanecki. The crystallinity of poly(butylene terephthalate) in mass‐scale extrusion products as seen by differential scanning calorimetry. Polymers for Advanced Technologies. 2020; 32 (3):1272-1287.

Chicago/Turabian Style

Maciej Danek; Mateusz Lutomski; Waldemar Maniukiewicz; Marcin Kozanecki. 2020. "The crystallinity of poly(butylene terephthalate) in mass‐scale extrusion products as seen by differential scanning calorimetry." Polymers for Advanced Technologies 32, no. 3: 1272-1287.

Journal article
Published: 30 November 2020 in Polymer
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The phase diagrams for poly (oligo (ethylene glycol) methyl ether methacrylate) (POEGMA) hydrogels with varying side chain lengths over broad temperature and composition ranges are shown for the first time. It is also shown that the ability of water to crystallize is strictly correlated with the occurrence of a volume phase transition in hydrogels, as both phenomena require the continuous water pathways in the system. A discontinuity in the water phase appears above wp = 0.83 for PMEO2MA and wp = 0.56 for other POEGMAs. In contrast to PMEO2MA, POEGMA hydrogels with longer oligoether chains are characterized by two distinct regimes for the glass transition as a function of polymer content. It was also confirmed that crystallization of the polymer network can be observed for POEGMA networks with suitably long oligoether chain lengths, namely, n ≥ 7. Moreover, the range of the polymer crystalline phase occurrence was found to increase with the length of the oligoether chain.

ACS Style

Anna Czaderna-Lekka; Marcin Kozanecki; Malgorzata Matusiak; Slawomir Kadlubowski. Phase transitions of poly(oligo(ethylene glycol) methyl ether methacrylate)-water systems. Polymer 2020, 212, 123247 .

AMA Style

Anna Czaderna-Lekka, Marcin Kozanecki, Malgorzata Matusiak, Slawomir Kadlubowski. Phase transitions of poly(oligo(ethylene glycol) methyl ether methacrylate)-water systems. Polymer. 2020; 212 ():123247.

Chicago/Turabian Style

Anna Czaderna-Lekka; Marcin Kozanecki; Malgorzata Matusiak; Slawomir Kadlubowski. 2020. "Phase transitions of poly(oligo(ethylene glycol) methyl ether methacrylate)-water systems." Polymer 212, no. : 123247.

Journal article
Published: 17 November 2020 in Molecules
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The influence of the nature of carbon materials used as a support for Ru/C catalysts on levulinic acid hydrogenation with formic acid as a hydrogen source toward gamma-valerolactone was investigated. It has been shown that the physicochemical properties of carbon strongly affect the catalytic activity of Ru catalysts. The relationship between the hydrogen mobility, strength of hydrogen adsorption, and catalytic performance was established. The catalyst possessing the highest number of defects, stimulating metal support interaction, exhibited the highest activity. The effect of the catalyst grain size was also studied. It was shown that the decrease in the grain size resulted in the formation of smaller Ru crystallites on the catalyst surface, which facilitates the activity.

ACS Style

Marcin Jędrzejczyk; Emilia Soszka; Joanna Goscianska; Marcin Kozanecki; Jacek Grams; Agnieszka M. Ruppert. The Influence of Carbon Nature on the Catalytic Performance of Ru/C in Levulinic Acid Hydrogenation with Internal Hydrogen Source. Molecules 2020, 25, 5362 .

AMA Style

Marcin Jędrzejczyk, Emilia Soszka, Joanna Goscianska, Marcin Kozanecki, Jacek Grams, Agnieszka M. Ruppert. The Influence of Carbon Nature on the Catalytic Performance of Ru/C in Levulinic Acid Hydrogenation with Internal Hydrogen Source. Molecules. 2020; 25 (22):5362.

Chicago/Turabian Style

Marcin Jędrzejczyk; Emilia Soszka; Joanna Goscianska; Marcin Kozanecki; Jacek Grams; Agnieszka M. Ruppert. 2020. "The Influence of Carbon Nature on the Catalytic Performance of Ru/C in Levulinic Acid Hydrogenation with Internal Hydrogen Source." Molecules 25, no. 22: 5362.

Research article
Published: 24 September 2020 in The Journal of Physical Chemistry A
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Study of structure and optical properties of magnesium ammonium phosphate hexahydrate crystal known as struvite is presented. Experimentally determined infrared (IR) and ultraviolet-visible (UV-Vis) spectra are compared with the theoretical predictions of density functional methods. Examination of the interatomic bond lengths, Mulliken atomic charges, and binding energies of water in the magnesium hexahydrate cation, together with the analysis of the hydrogen bond pattern have allowed us to explain a special feature of the IR spectrum of struvite - a blueshift of the band corresponding to the O-H stretching mode. This mode has been assigned to a "dangling" hydroxyl group in one of the water molecules in magnesium hexahydrate. Using experimentally obtained UV-Vis spectrum and performing Tauc plots analysis, optical bandgap of struvite has been narrowed to a range from 5.92 eV to 6.06 eV.

ACS Style

Dominik Sidorczuk; Marcin Kozanecki; Bartolomeo Civalleri; Katarzyna Pernal; Jolanta Prywer. Structural and Optical Properties of Struvite. Elucidating Structure of Infrared Spectrum in High Frequency Range. The Journal of Physical Chemistry A 2020, 124, 8668 -8678.

AMA Style

Dominik Sidorczuk, Marcin Kozanecki, Bartolomeo Civalleri, Katarzyna Pernal, Jolanta Prywer. Structural and Optical Properties of Struvite. Elucidating Structure of Infrared Spectrum in High Frequency Range. The Journal of Physical Chemistry A. 2020; 124 (42):8668-8678.

Chicago/Turabian Style

Dominik Sidorczuk; Marcin Kozanecki; Bartolomeo Civalleri; Katarzyna Pernal; Jolanta Prywer. 2020. "Structural and Optical Properties of Struvite. Elucidating Structure of Infrared Spectrum in High Frequency Range." The Journal of Physical Chemistry A 124, no. 42: 8668-8678.

Journal article
Published: 08 September 2020 in Polymer
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The hydration of amphiphilic polymers with some different hydrophilic centres, such as poly(2-(2-methoxyethoxy)ethyl methacrylate) (PMEO2MA), is important to understand well their thermo-responsivity. The PMEO2MA hydrogels with varying swelling degree, synthetized by radiation-induced cross-linking polymerization, has been investigated by ATR-FTIR supported by DFT calculations. This study broadens the knowledge about mechanism of hydration of PMEO2MA and explores the relationships between the water content in hydrogels, polymer-water, and water-water interactions. A complete picture of hydration processes of all hydrophilic centres (carbonyl and ether groups) was shown and correlated with water structure for the first time. It was found that firstly, small water clusters, and water bridges between the polymer segments are formed. Next, the bridges break and polymer chains start to separate. Finally, water tend to structure characteristic for bulk water. The obtained results may be an excellent basis for the analysis of local changes in PMEO2MA hydration during Volume Phase Transition.

ACS Style

Krzysztof Piechocki; Marcin Kozanecki; Jakub Saramak. Water structure and hydration of polymer network in PMEO2MA hydrogels. Polymer 2020, 210, 122974 .

AMA Style

Krzysztof Piechocki, Marcin Kozanecki, Jakub Saramak. Water structure and hydration of polymer network in PMEO2MA hydrogels. Polymer. 2020; 210 ():122974.

Chicago/Turabian Style

Krzysztof Piechocki; Marcin Kozanecki; Jakub Saramak. 2020. "Water structure and hydration of polymer network in PMEO2MA hydrogels." Polymer 210, no. : 122974.

Journal article
Published: 07 June 2020 in Materials
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The superior ability of thiiranes (episulfides) to undergo ring-opening polymerization (ROP) in the presence of anionic initiators allows the preparation of chemically stable polysulfide homopolymers. Incorporation of elemental sulfur (S8) by copolymerization below the floor temperature of S8 permits the placement of a large quantity of sulfur atoms in the polysulfide mainchain. The utility of styrene sulfide (2-phenylthiirane; StS) for copolymerization with elemental sulfur is reported here. A few polysulfides differing depending on the initial ratio of S8 to StS and copolymerization time were synthesized. Various spectroscopic methods (1H NMR, 13C NMR, Raman spectroscopy and FTIR spectroscopy) were applied to characterize the chemical structure of the copolymers. Additionally, the phase structure and thermal stability of the synthesized polysulfides were investigated using DSC and TGA, respectively. The successful anionic copolymerization of styrene sulfide and elemental sulfur has been demonstrated.

ACS Style

Jakub Wręczycki; Dariusz M. Bieliński; Marcin Kozanecki; Paulina Maczugowska; Grzegorz Mlostoń. Anionic Copolymerization of Styrene Sulfide with Elemental Sulfur (S8). Materials 2020, 13, 2597 .

AMA Style

Jakub Wręczycki, Dariusz M. Bieliński, Marcin Kozanecki, Paulina Maczugowska, Grzegorz Mlostoń. Anionic Copolymerization of Styrene Sulfide with Elemental Sulfur (S8). Materials. 2020; 13 (11):2597.

Chicago/Turabian Style

Jakub Wręczycki; Dariusz M. Bieliński; Marcin Kozanecki; Paulina Maczugowska; Grzegorz Mlostoń. 2020. "Anionic Copolymerization of Styrene Sulfide with Elemental Sulfur (S8)." Materials 13, no. 11: 2597.

Journal article
Published: 01 April 2020 in Radiation Physics and Chemistry
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Influence of electron beam (EB) irradiation on surface properties of magnetite was investigated using XRD, TEM, DLS, zeta-potential, FTIR and Raman spectroscopy. Fe3O4 particles were synthesized by alkaline hydrolysis of ferrous ions and stabilized with sodium citrate. Dry samples of bare and citrate- coated Fe3O4 particles were EB-irradiated with doses up to 300 kGy. The crystallite sizes of uncoated and citrate-coated magnetite were found to be in the range of 25–27 nm and 30–32 nm, respectively. EB- irradiation did not result in phase and size change of Fe3O4 nanoparticles. Using DLS and TEM analysis, it has been found, that EB-irradiated bare Fe3O4 nanoparticles have aggregated in aqueous dispersion. Traces of hematite and maghemite were identified on the surface of EB-irradiated bare particles by Raman spectroscopy. Radiation-induced oxidation of magnetite was probably involved to radiolysis of water molecules adsorbed onto particle surface and formation of hydroxyl radicals which are strong oxidize species. Disaggregation of citrate-coated particles in water dispersion after EB irradiation has been assigned to disruption of Fe-citrate bonds.

ACS Style

Angelika Duszyńska; Agnieszka Danielewicz; Sławomir Kadłubowski; Marcin Kozanecki; Waldemar Maniukiewicz; Przemysław Sowiński; Magdalena Szadkowska – Nicze. Influence of electron-beam irradiation on surface properties of magnetic iron oxide nanoparticles stabilized with citrate. Radiation Physics and Chemistry 2020, 169, 107796 .

AMA Style

Angelika Duszyńska, Agnieszka Danielewicz, Sławomir Kadłubowski, Marcin Kozanecki, Waldemar Maniukiewicz, Przemysław Sowiński, Magdalena Szadkowska – Nicze. Influence of electron-beam irradiation on surface properties of magnetic iron oxide nanoparticles stabilized with citrate. Radiation Physics and Chemistry. 2020; 169 ():107796.

Chicago/Turabian Style

Angelika Duszyńska; Agnieszka Danielewicz; Sławomir Kadłubowski; Marcin Kozanecki; Waldemar Maniukiewicz; Przemysław Sowiński; Magdalena Szadkowska – Nicze. 2020. "Influence of electron-beam irradiation on surface properties of magnetic iron oxide nanoparticles stabilized with citrate." Radiation Physics and Chemistry 169, no. : 107796.

Journal article
Published: 06 March 2020 in Materials
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Different microstructures were created on the surface of a polycrystalline diamond plate (obtained by microwave plasma-enhanced chemical vapor deposition—MW PECVD process) by use of a nanosecond pulsed DPSS (diode pumped solid state) laser with a 355 nm wavelength and a galvanometer scanning system. Different average powers (5 to 11 W), scanning speeds (50 to 400 mm/s) and scan line spacings (“hatch spacing”) (5 to 20 µm) were applied. The microstructures were then examined using scanning electron microscopy, confocal microscopy and Raman spectroscopy techniques. Microstructures exhibiting excellent geometry were obtained. The precise geometries of the microstructures, exhibiting good perpendicularity, deep channels and smooth surfaces show that the laser microprocessing can be applied in manufacturing diamond microfluidic devices. Raman spectra show small differences depending on the process parameters used. In some cases, the diamond band (at 1332 cm−1) after laser modification of material is only slightly wider and shifted, but with no additional peaks, indicating that the diamond is almost not changed after laser interaction. Some parameters did show that the modification of material had occurred and additional peaks in Raman spectra (typical for low-quality chemical vapor deposition CVD diamond) appeared, indicating the growing disorder of material or manufacturing of the new carbon phase.

ACS Style

Mariusz Dudek; Adam Rosowski; Marcin Kozanecki; Malwina Jaszczak; Witold Szymański; Martin Sharp; Anna Karczemska. Microstructures Manufactured in Diamond by Use of Laser Micromachining. Materials 2020, 13, 1199 .

AMA Style

Mariusz Dudek, Adam Rosowski, Marcin Kozanecki, Malwina Jaszczak, Witold Szymański, Martin Sharp, Anna Karczemska. Microstructures Manufactured in Diamond by Use of Laser Micromachining. Materials. 2020; 13 (5):1199.

Chicago/Turabian Style

Mariusz Dudek; Adam Rosowski; Marcin Kozanecki; Malwina Jaszczak; Witold Szymański; Martin Sharp; Anna Karczemska. 2020. "Microstructures Manufactured in Diamond by Use of Laser Micromachining." Materials 13, no. 5: 1199.

Journal article
Published: 17 January 2020 in Journal of Physics and Chemistry of Solids
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The molecular mobility in poly(oligo(ethylene glycol) methyl ether methacrylate) (POEGMA) networks with varying side chain lengths (n = 2–19 oxyethylene groups), which are synthetized by radiation-induced crosslinking polymerization, has been investigated by dielectric spectroscopy. A complete relaxation map for these materials with four processes was created for the first time. At higher temperatures, α relaxation corresponding to the dynamic glass transition and α’ relaxation, which was likely correlated with sub-Rouse processes, were found. Below the dynamic glass transition, two Arrhenius-type processes were distinguished: the γ-process, which was assigned to the end (methoxy-) group; and weak β-relaxation, which was dependent on the oligoether chain length and was related to side chain movements. The fragility index for all of the POEGMA networks proves that these are strong glass-forming materials. In the partially crystalline samples with n > 7, the relaxation processes are strongly disturbed by cold crystallization and melting.

ACS Style

Anna Czaderna-Lekka; Krzysztof Piechocki; Marcin Kozanecki; Lidia Okrasa. Impact of oligoether chain lengths on the relaxation processes in poly(oligo(ethylene glycol) methyl ether methacrylate) networks that are synthesized by radiation-induced crosslinking polymerization. Journal of Physics and Chemistry of Solids 2020, 140, 109359 .

AMA Style

Anna Czaderna-Lekka, Krzysztof Piechocki, Marcin Kozanecki, Lidia Okrasa. Impact of oligoether chain lengths on the relaxation processes in poly(oligo(ethylene glycol) methyl ether methacrylate) networks that are synthesized by radiation-induced crosslinking polymerization. Journal of Physics and Chemistry of Solids. 2020; 140 ():109359.

Chicago/Turabian Style

Anna Czaderna-Lekka; Krzysztof Piechocki; Marcin Kozanecki; Lidia Okrasa. 2020. "Impact of oligoether chain lengths on the relaxation processes in poly(oligo(ethylene glycol) methyl ether methacrylate) networks that are synthesized by radiation-induced crosslinking polymerization." Journal of Physics and Chemistry of Solids 140, no. : 109359.

Journal article
Published: 01 January 2020 in Arabian Journal of Chemistry
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ACS Style

Pawel Mierczynski; Oleksandr Shtyka; Marcin Kozanecki; Paulina Filipczak; Waldemar Maniukiewicz; Dmitry G. Gromov; Sergey Dubkov; Artem V. Sysa; Alexey Yu. Trifonov; Agnieszka Czylkowska; Malgorzata Iwona Szynkowska; Tomasz P. Maniecki. Effect of the AACVD based synthesis atmosphere on the structural properties of multi-walled carbon nanotubes. Arabian Journal of Chemistry 2020, 13, 835 -850.

AMA Style

Pawel Mierczynski, Oleksandr Shtyka, Marcin Kozanecki, Paulina Filipczak, Waldemar Maniukiewicz, Dmitry G. Gromov, Sergey Dubkov, Artem V. Sysa, Alexey Yu. Trifonov, Agnieszka Czylkowska, Malgorzata Iwona Szynkowska, Tomasz P. Maniecki. Effect of the AACVD based synthesis atmosphere on the structural properties of multi-walled carbon nanotubes. Arabian Journal of Chemistry. 2020; 13 (1):835-850.

Chicago/Turabian Style

Pawel Mierczynski; Oleksandr Shtyka; Marcin Kozanecki; Paulina Filipczak; Waldemar Maniukiewicz; Dmitry G. Gromov; Sergey Dubkov; Artem V. Sysa; Alexey Yu. Trifonov; Agnieszka Czylkowska; Malgorzata Iwona Szynkowska; Tomasz P. Maniecki. 2020. "Effect of the AACVD based synthesis atmosphere on the structural properties of multi-walled carbon nanotubes." Arabian Journal of Chemistry 13, no. 1: 835-850.

Journal article
Published: 23 November 2018 in Talanta
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This article presents some aspects of application the dispersive Micro- Raman Spectroscopy in textile fibers analysis. Research were dedicated to the methodology of surface enhancement Raman spectroscopy (SERS) studies on cotton fabric and possibility of its application in fibers characterization. Studies were carried out on dyed cotton fabrics modified by silver nanowires (AgNWs). Three reactive dyes (blue, yellow, red) and four color intensities (0.5%, 1%, 2% and 5%) were used. AgNWs colloid was deposited on undyed and dyed cotton fabrics by dipping and drying method. Dyed fabrics were examined by spectroscopic methods: FTIR ATR, Raman, UV-Vis Diffuse Reflectance Spectroscopy, Fluorescence Spectroscopy. Raman signal enhancement phenomena occurring on the silver nanoparticles increases the possibility of fiber and dye identification especially in the case of dyes used in cotton dyeing reveals fluorescence.

ACS Style

Dorota Puchowicz; Patrycja Giesz; Marcin Kozanecki; Malgorzata Cieslak. Surface-enhanced Raman spectroscopy (SERS) in cotton fabrics analysis. Talanta 2018, 195, 516 -524.

AMA Style

Dorota Puchowicz, Patrycja Giesz, Marcin Kozanecki, Malgorzata Cieslak. Surface-enhanced Raman spectroscopy (SERS) in cotton fabrics analysis. Talanta. 2018; 195 ():516-524.

Chicago/Turabian Style

Dorota Puchowicz; Patrycja Giesz; Marcin Kozanecki; Malgorzata Cieslak. 2018. "Surface-enhanced Raman spectroscopy (SERS) in cotton fabrics analysis." Talanta 195, no. : 516-524.

Journal article
Published: 13 November 2018 in Journal of Industrial and Engineering Chemistry
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In this paper a novel, simple method for synthesis of lake pigments based on 1,2-dihydroxyanthraquinone dye and LDH carbonates was proposed. LDHs were modified with 1,2-dihydroxyanthraquinone, transforming the soluble dye into a new kind of hybrid lake. In result, the solvent resistance and photostability of the chromophore were improved, which may be attributed to strong dye-LDH interactions. TOF SIMS technique was used for the first time to confirmed the role of C14H7O4Mg+ and C14H6O5Al− ions in the formation of the hybrids. Alizarin lakes has been recognized as a new class of colorants which demonstrated good color characteristics and chemical stability.

ACS Style

Anna Marzec; Bolesław Szadkowski; Jacek Rogowski; Waldemar Maniukiewicz; Marcin Kozanecki; Dariusz Moszyński; Marian Zaborski. Characterization and properties of new color-tunable hybrid pigments based on layered double hydroxides (LDH) and 1,2-dihydroxyanthraquinone dye. Journal of Industrial and Engineering Chemistry 2018, 70, 427 -438.

AMA Style

Anna Marzec, Bolesław Szadkowski, Jacek Rogowski, Waldemar Maniukiewicz, Marcin Kozanecki, Dariusz Moszyński, Marian Zaborski. Characterization and properties of new color-tunable hybrid pigments based on layered double hydroxides (LDH) and 1,2-dihydroxyanthraquinone dye. Journal of Industrial and Engineering Chemistry. 2018; 70 ():427-438.

Chicago/Turabian Style

Anna Marzec; Bolesław Szadkowski; Jacek Rogowski; Waldemar Maniukiewicz; Marcin Kozanecki; Dariusz Moszyński; Marian Zaborski. 2018. "Characterization and properties of new color-tunable hybrid pigments based on layered double hydroxides (LDH) and 1,2-dihydroxyanthraquinone dye." Journal of Industrial and Engineering Chemistry 70, no. : 427-438.

Chapter
Published: 11 October 2018 in Challenges and Advances in Computational Chemistry and Physics
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Over the last years, a rapid development in the material science, which is an answer to an increasing demand for functional, smart systems, has taken place. The recent progress in design, synthesis and characterization of stimuli-responsive polymer systems (SRPS) fits in this trend very well. However, extensive experiments, simulations as well as theoretical works are still conducted to deepen the knowledge about these systems, their complexity and diversity result in still insufficient understanding of some crucial phenomena. One of them is intermolecular interactions which change during swelling/deswelling processes, phase transitions (commonly leading to the phase separation) and loading or a release of various additives. Since the vibrational spectroscopy is considered to be the most powerful tool to study molecular interactions, this chapter presents various aspects related to the usage of vibrational spectroscopy in the field of SRPS.

ACS Style

Marcin Kozanecki; Marcin Pastorczak; Krzysztof Halagan. Vibrational Spectroscopy in Analysis of Stimuli-Responsive Polymer–Water Systems. Challenges and Advances in Computational Chemistry and Physics 2018, 223 -271.

AMA Style

Marcin Kozanecki, Marcin Pastorczak, Krzysztof Halagan. Vibrational Spectroscopy in Analysis of Stimuli-Responsive Polymer–Water Systems. Challenges and Advances in Computational Chemistry and Physics. 2018; ():223-271.

Chicago/Turabian Style

Marcin Kozanecki; Marcin Pastorczak; Krzysztof Halagan. 2018. "Vibrational Spectroscopy in Analysis of Stimuli-Responsive Polymer–Water Systems." Challenges and Advances in Computational Chemistry and Physics , no. : 223-271.