低分子—1,2聚丁二烯的研制  

SYNTHESIZE LOW MOLECULAR WEIGHT 1,2—POLYBUTADIENE

作　　者：王维[1] 

机构地区：[1]北京燕山石油化工公司合成橡胶厂,102503

出　　处：《弹性体》1992年第2期4-8,共5页China Elastomerics

摘　　要：以钠—萘为值化剂,THF为溶剂,甲苯为链转移剂合成1,2—结构65～80％的低分子聚丁二烯。用核磁共振等进行了研究。报导了各种聚合参数对分子量的影响。Low molecular weihgt 1, 2—polybutadiene having 1,2—content of 65～80% were obtained by a catayst system based on sodium—Naphthalene in THF. Polymerization with this system have been carried in the presence of toluene, which acts both as a solvent and as a chain transfer. Polybutadienes were characterized by HNMR,^(13) CNMR and osmometry. Influene of various polymerization parameters on molecular weight are reported.

关 键 词：低分子1 2—聚丁二烯 钠—萘 链转移剂 数均分子量 

分 类 号：TQ325.15[化学工程—合成树脂塑料工业]