摘要
研究了在０℃下以对锂基苯酚盐为引发剂、四氢呋喃（ＴＨＦ）为溶剂、马来酸酐为终止剂的丁二烯负离子聚合，考察了影响聚合物分子量分布及其微观结构的因素。结果表明，当单体与引发剂的摩尔比小于８８，终止剂与引发剂的摩尔比为６～８时，可保证聚合物的羟基和羧基官能度接近理论值１，从而实现了端羟羧基液体聚丁二烯橡胶的分子设计；可通过调节单体与引发剂的摩尔比来设计聚合物分子量；调节非极性溶剂正己烷与ＴＨＦ的配比，可控制聚合物的微观结构。
The anionic polymerizaion of hydroxyl carboxyl-terminatde liquid polybutadiene rubber was studied at 0℃,with p-lithium phenoxide as initiator,thetrahydrofuran as solvent and maleic anhydride as terminator The results showed that in the molar ratio of monomer/initiator less than 88,terminator/initiator in the range of 6～8,the functionalities, fOH and fCOOH of the polymer were close to the theoretical number 1,thus realized the molecular design of hydroxylcarboxylterminated liqid polybutadiene rubber.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1994年第2期80-83,共4页
China Synthetic Rubber Industry
关键词
端羟羧基
负离子聚合
顺丁橡胶
hydroxyl carboxyl-terminated polybutadiene
liqued rubber
anionc ploymerization
functionality
molecular weight distribution
molecular structure.
