Janet Scott

Dr. Janet Scott

Centre for Sustainable Chemical Technologies, Department of Chemistry, University of Bath, Bath BA2 7AY, UK
orcid

Research Focus & Metrics

Academic Career Length

36Years (1991-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2007 in Tetrahedron
Verified
Journal Article
Closed access
SCShahana Chowdhury
Shahana Chowdhury
RMRam S. Mohan
Ram S. Mohan
JSJanet Scott
Janet Scott

16 August 2001 in Journal of the American Chemical Society
Verified
Journal Article
Closed access
GRGadi Rothenberg
Gadi Rothenberg
ADAndrew P. Downie
Andrew P. Downie
CRColin L. Raston
Colin L. Raston
JSJanet Scott
Janet Scott

6 February 2009 in Green Chemistry
Verified
Journal Article
Closed access
PDF file
STSuzie S. Y. Tan
Suzie S. Y. Tan
DMDouglas R. MacFarlane
Douglas R. MacFarlane
JUJonathan Upfal
Jonathan Upfal
LELeslie A. Edye
Leslie A. Edye
WDWilliam O. S. Doherty
William O. S. Doherty
JSJanet Scott
Janet Scott
Lignocellulosic materials are a potentially valuable source of both aromatic compoundsvia the lignin component and sugars from the cellulose and hemicellulose components. However, efficient means of separating and depolymerising the components are required. An ionic liquid mixture containing the 1-ethyl-3-methylimidazolium cation and a mixture of alkylbenzenesulfonates with xylenesulfonate as the main anion was used to extract lignin from sugarcane plant waste at atmospheric pressure and elevated temperatures (170–190 °C). The lignin was recovered from the ionic liquid by precipitation, allowing the ionic liquid to be recycled. An extraction yield exceeding 93% was attained. The lignin produced had a molecular weight of 2220 g/mol after acetylation. The regenerated ionic liquid showed good retention of structure and properties. The other product of the extraction was a cellulose pulp, which can be used in further processing.

29 January 2004 in Australian Journal of Chemistry
Verified
Journal Article
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KBKrisztian J. Baranyai
Krisztian J. Baranyai
GDGlen Deacon
Glen Deacon
DMDouglas R. MacFarlane
Douglas R. MacFarlane
JPJennifer Pringle
Jennifer Pringle
JSJanet Scott
Janet Scott
Ionic liquids based on the imidazolium cation are found to degrade, yielding volatile degradation products, at temperatures significantly lower than previously reported and thus a parameter T z / x (the maximum operating temperature) is developed to provide a more appropriate estimate of thermal stability.

15 March 2005 in Australian Journal of Chemistry
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Journal Article
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PSPeter J. Scammells
Peter J. Scammells
JSJanet Scott
Janet Scott
RSRobert D. Singer
Robert D. Singer
There has been an explosion of interest in ionic liquids in the last five years that has resulted in the discovery of a vast number of new ionic liquids with a wide range of interesting applications. Although ionic liquids are invariably described as highly stable green solvents, thorough investigations quantifying their purity, stability, biodegradability, and toxicity have lagged behind the pace of other research in the area. This review addresses these key issues and summarizes the approaches that have been developed for recycling ionic liquids.

4 July 2006 in Green Chemistry
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Journal Article
Closed access
PDF file
TWTim J. Wooster
Tim J. Wooster
KJKatarina M. Johanson
Katarina M. Johanson
KFKevin J Fraser
Kevin J Fraser
DMDouglas R. MacFarlane
Douglas R. MacFarlane
JSJanet Scott
Janet Scott
The long term thermal stability of ionic liquids containing dicyanamide or tricyanomethide anions is significantly lower than might be expected from temperature ramped TGA studies, and these anions, combined with N-based cations, yield polymeric products during thermal decomposition. Operational upper temperature limits for extended heating have been determined from isothermal decomposition measurements and extraction of t0.99 values, and a simple relationship between onset of decomposition (determined by non-zero 1st derivative) and T0.01/10 (the temperature at which 1% decomposition occurs in 10 h) is derived.