氯化聚乙烯弹性体的固相法合成  

Chlorinated Polyethylene Elastomer Synthesized by A Solid State Method

作　　者：赵季若[1] 冯莺[1] 马钢[1] 曹桂芳[1] 

机构地区：[1]青岛化工学院氯化聚合物研究室

出　　处：《应用化学》1997年第1期41-44,共4页Chinese Journal of Applied Chemistry

摘　　要：讨论了以固相法合成氯化聚乙烯（ＣＰＥ）弹性体的过程．实验结果表明，以固相氯化反应所得的ＣＰＥ，其大分子链上Ｃｌ取代基的分布比水相悬浮法更均匀．氯化过程的温度直接影响氯化速度及分子结构，如残留结晶、氯分布等．而聚乙烯颗粒表面与内部的氯化程度取决于氯化速度．In this paper the chlorinated polyethylene(CPE) elastomer is synthesized by a solid state method. Results show that the chlorine distribution of CPE prepared by the solid state method is more homogeneous than that of CPE prepared by an aqueous suspension method. The chlorine distribution in the molecular chain, the residual crystallinity and the chlorination speed are affected by the reaction temperature. The degree of chlorination on the surface and in the bulk of polyethylene grains depends on the chlorination speed. The chlorine substitution on the macro molecular chain obstructs the chlorination of neighboring H atoms.

关 键 词：氯化聚乙烯 固相法 氯化温度 弹性体 

分 类 号：TQ334.2[化学工程—橡胶工业]