L—丙氨酸与甘氨酸的N—羧基—环内酸酐共聚合的研究

The Study of Copolymerization of L-Ala-NCA and Gly-NCA

摘要: 从模拟蚕丝素蛋白的角度,研究了L-丙氨酸的N-羧基-环内酸酐(L-Ala-NCA)与甘氨酸的N-羧基-环内酸酐(Gly-NCA)在硝基苯溶剂中,正丁胺引发下的共聚合反应。讨论了单体投料比,反应温度对聚合速率及产物分子量的影响。并从实验中发现,在不加入引发剂的情况下,L-Ala-NCA和Gly-NCA共结晶能在甲苯介质中顺利地进行非均相的热开环共聚,且产物的分子量远高于采用引发剂的均相聚合体系产物的相应值。

Abstract: In nitribenzene, the copolymerization of L-Ala-NCA and Gly-NCA, initiated by n-butylamine, was studied. The influence of monomer composition and reaction temperature on the rate of copolymerization and the molecular weight of resulted copolymers were diss