PREPARATION OF LOW MOLECULAR WEIGHT POLY(GLYCIDYL METHACRYLATE) BY PHOTOPOLYMERIZATION  

作　　者：杨万泰 

机构地区：[1]State Key Laboratory of Chemical Resource Engineering, Beijing 100029, China Department of Polymer Science, Beijing University of Chemical Technology, Beijing 100029, China

出　　处：《Chinese Journal of Polymer Science》2006年第5期489-496,共8页高分子科学（英文版）

基　　金：The authors are grateful to the National Natural Science Foundation of China (No. 50433040) for the financial support.

摘　　要：Low molecular weight poly（glycidyl methacrylate）s （PGMAs） were prepared by photopolymerization in ethyl acetate, with benzophenone （BP） as photoinitiator, and triethylamine （TEA） as hydrogen donor. The existence of semipinacol dormant end groups in PGMA was confirmed by FT-IR and ^1H-NMR, and the content of the semipinacol dormant groups was determined quantitatively by ^1H-NMR measurement. The effects of various thctors, such as reaction time, BP concentration and monomer concentration on the synthesis of the polymers were investigated systematically. The molecular weights of the polymers were also investigated with GPC. It is shown that increasing BP concentration and decreasing irradiation time and monomer concentration led to a significant decrease of the molecular weights.Low molecular weight poly（glycidyl methacrylate）s （PGMAs） were prepared by photopolymerization in ethyl acetate, with benzophenone （BP） as photoinitiator, and triethylamine （TEA） as hydrogen donor. The existence of semipinacol dormant end groups in PGMA was confirmed by FT-IR and ^1H-NMR, and the content of the semipinacol dormant groups was determined quantitatively by ^1H-NMR measurement. The effects of various thctors, such as reaction time, BP concentration and monomer concentration on the synthesis of the polymers were investigated systematically. The molecular weights of the polymers were also investigated with GPC. It is shown that increasing BP concentration and decreasing irradiation time and monomer concentration led to a significant decrease of the molecular weights.

关 键 词：Poly（glycidyl methacrylate） PHOTOPOLYMERIZATION Solution polymerization Semipinacol dormant groups. 

分 类 号：O631.5[理学—高分子化学]