SYNTHESIS AND THERMAL PROPERTIES OF A NEW CHOLIC ACIDCONTAINING COPOLYMER  

作　　者：Zheng-ji Song Hong Li Xiao-xia Zhu Departement de Chimie, Universitd de Montreal, C P. 6128, Succursale Centre-ville, Montreal, Quebec, H3C 3J7 Canada State Key Laboratory of Functional Polmer Materials for Adsorption and Separation, Institute of Polymer Chemistry Nankai University Tianjin 300071, China 

出　　处：《Chinese Journal of Polymer Science》2003年第5期521-526,共6页高分子科学（英文版）

基　　金：NSERC of Canada and Nankai University for financial support. H. Li thanks the National Natural Science Foundation of China for a travel award in support of the collaborative research program (No. 20074016).

摘　　要：A new copolymer was synthesized by free radical polymerization in solution from methyl 3α-methylacryloyl-7α, 12α-dihydroxy-5β-cholan-24-oate (MACAME) and maleic anhydride (MAN). The copolymer was characterized by FT-IR and functional group analysis. The reactivity ratios of the two monomers were estimated [r_1 = 11.6 (MACAME), r_2 = 0.01(MAN)] by conducting a series of copolymerizations with a variety of monomer feed compositions and analyzing thecopolymer composition. Thermogravimetric and differential scanning calorimetric analyses of the samples indicate that thecopolymer possesses good thermal stability. The temperature at which the copolymer samples experienced a 10% weight loss(T_(WL)) is over 287℃, and the T_g ranged from 174 to 185℃ for the copolymers.A new copolymer was synthesized by free radical polymerization in solution from methyl 3α-methylacryloyl-7α, 12α-dihydroxy-5β-cholan-24-oate (MACAME) and maleic anhydride (MAN). The copolymer was characterized by FT-IR and functional group analysis. The reactivity ratios of the two monomers were estimated [r_1 = 11.6 (MACAME), r_2 = 0.01(MAN)] by conducting a series of copolymerizations with a variety of monomer feed compositions and analyzing thecopolymer composition. Thermogravimetric and differential scanning calorimetric analyses of the samples indicate that thecopolymer possesses good thermal stability. The temperature at which the copolymer samples experienced a 10% weight loss(T_(WL)) is over 287℃, and the T_g ranged from 174 to 185℃ for the copolymers.

关 键 词：Cholic acid Maleic anhydride COPOLYMER PHOTORESIST Polymer characterization 

分 类 号：TQ316.322[化学工程—高聚物工业]