Blend copolymers (PVA/S) were grafted with polyethylene glycol methyl methacrylate (PEGMA) with different ratios. Potassium persulfate was used as an initiator. The blend copolymer (PVA/S) was created by combining poly(vinyl alcohol) (PVA) with starch (S) in various ratios. The main idea was to study the effect of different ratios of the used raw materials on the biodegradability of plastic films. The resulting polymers (PVA/S/PEGMA) were analyzed using FTIR spectroscopy to investigate the hydrogen bond interaction between PVA, S, and PEGMA in the mixtures. TGA and SEM analyses were used to characterize the polymers (PVA/S/AA). The biodegradability and mechanical properties of the PVA/S/PEGMA blend films were evaluated. The findings revealed that the mechanical properties of the blend films are highly influenced by PEGMA. The time of degradation of the films immersed in soil and Coca-Cola increases as the contents of PVA and S and the molecular weight (MW) of PEGMA increase in the terpolymer. The M8 sample (PVA/S/PEGMA in the ratio of 3:1:2, respectively) with a MW of 950 g/mol produced the lowest elongation at break (67.5%), whereas M1 (PVA/S/PEGMA in the ratio of 1:1:1, respectively) with a MW of 300 g/mol produced the most (150%). The film’s tensile strength and elongation at break were improved by grafting PEGMA onto the blending polymer (PAV-b-S). T_g and T_m increased when the PEGMA MW increased from 300 to 950. T_g (48.4 °C) and T_m (190.9 °C) were the lowest in M1 (300), while T_g (84.8 °C) and T_m (190.9 °C) were greatest in M1 (950) at 209.3 °C. The increased chain and molecular weight of PEGMA account for the increase in T_g and T_m of the copolymers.

The physical, and mechanical properties as well as chemical and corrosion resistance of hybrid coatings comprising polyurethane/acrylic hybrids (PUA/AC) and acrylic polymers (AK) were investigated. Polyurethane (PUA) was synthesized through polyaddition polymerization of isocyanates [Isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI)] with polyols (GP 2000 and GP 4000) at an NCO/OH ratio of 0.85 and a temperature of 100°C. The acrylic copolymer (AC), based on methyl methacrylate (MMA) and butyl methacrylate (BuMA), was produced via bulk polymerization with benzoyl peroxide as a catalyst. The acrylic copolymer (AK) was prepared by grafting xanthan gum with styrene in various ratios (XG: St = 1:1.6, 1:5, and 1:8 w/w%). The results revealed that hybrid coatings demonstrated optimal chemical and corrosion resistance when PUA/AC hybrids were combined with AK. Enhancing both mechanical properties and corrosion resistance was achieved by integrating PUA/AC-10 with AK containing 8% styrene, resulting in superior anticorrosion performance including chemical and solvent resistances for the hybrid coating.