常压法系列窄分布聚苯乙烯样品的制备  

Preparation under Atmospheric Pressure of Polystyrene Standard Sample Series with Narrow Molecular Weights Distribution

作　　者：余学海[1] 徐军[1] 万玉钢[1] 王治流[1] 程镕时[1] 陈茂琪 张楚柏 张宗龙[2] 廖仲生[2] 周玉喜[2] 沙凤英 

机构地区：[1]南京大学化学系,南京210008 [2]南京炮兵学院化学教研组,南京211132

出　　处：《石油化工》1991年第11期760-764,共5页Petrochemical Technology

摘　　要：用阴离子聚合的方法,在常压和惰性气体保护的条件下,成功地制备了重均分子量从500到2×10~6一系列窄分布聚苯乙烯标准试样,取代了常用的高真空聚合方法。单体在含有少量四氢呋喃的苯中,以正丁基锂作为催化剂进行聚合。本文对优化的聚合条件和操作手续作了描述和讨论。A series of narrow molecular weight distribution polystyrene standard samples with weight average molecular weights varying from 500 to 2×10~6 were prepared successfully by anionic polymerization under atmospheric pressure with the protection of inert gas instead of the conventional high vacuum process. The monomer was polymerized in benzene containing a small amount of tet(?)hydrofuran with n-butyl lithium as catalyst. The optimized polymerization conditions and procedures were described and discussed.

关 键 词：常压法 聚苯乙烯 窄分布 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]