Synthesis and Study of Polymeric Ultraviolet Absorbers. II |
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| Authors: | Mahendra Patel J S Parmar M R Patel M M Patel |
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| Institution: | Department of Chemistry , Sardar Patel University Vallabh , Vidyanagar, 388120, India |
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| Abstract: | Polymeric UV absorbers have been prepared by free-radical solution copolymerization at 75°C of methyl methacrylate and 2-hydroxy-4-methacryloyloxybenzophenone monomers at low conversion (around 10%). The composition of the copolymers was determined by UV, IR, and NMR studies. The molecular weight was estimated by GPC. The reactivity ratios were determined by several methods. Viscosity was used to study the effect of copolymer composition and solvents. The copolymers were also analyzed by TGA and DSC, and DSC was used to study the effect of copolymer composition on Tg. |
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