超支化高分子体系的端基和支化对玻璃化温度的影响  

Influence of the Glass Transition Temperature of Hyperbranched Polymers with Simultancous Changes in End Groups and Branchpoints

作　　者：张淑华[1] 宋建民[2] 

机构地区：[1]廊坊师范学院,河北廊坊065000 [2]河北农业大学,河北保定071001

出　　处：《廊坊师范学院学报（自然科学版）》2009年第1期83-85,共3页Journal of Langfang Normal University(Natural Science Edition)

摘　　要：应用高分子反应统计理论,对超支化高分子体系的玻璃化温度受端基和支化点密度的影响进行了研究,得到了体系的玻璃化温度与反应程度的解析表达形式,并进一步以AB3型和加核的A3-ABg(g=2,3,4)型超支化高分子的缩聚反应体系为例探讨了反应程度对玻璃化温度的影响。The influence of the end groups and branchpoints density on the glass transition temperature of hyperbranched polymers are studied by using the principle of statistical mechanics. Combining the equation of literatures, the analytical expression between the glass transition temperature and conversion is obtained. Taking AB3 type and A3 - ABg （g = 2,3,4） type as a further example, the influence of the conversion on the glass transition temperature are discussed.

关 键 词：超支化高分子 反应程度 玻璃化温度 

分 类 号：O63[理学—高分子化学]