摘要
对阴离子制备丁羧胶过程中产生的“假凝胶”现象进行了研究。重点探讨了聚合物浓度、分子量、阴离子链末端结构等因素对“假凝胶”形成的影响。同时,提出采用“戴帽”技术,降低链末端活性,减少羧化副反应的方法。
There exists the“pseudo-gel”phenomenon during the preparation process of carboxyl-terminated polybutadiene by anionic polymerization,This article mainlydiscusses the influence of polymer concentration,molecular weight and livingpolymer chain end structure on the “pseudo-gel”formation.Applying “capping”technique to weaken the activity of carbanion for reducing the side reactionduring the carboxylation is proposed.
出处
《石油化工》
CAS
CSCD
北大核心
1990年第6期375-380,共6页
Petrochemical Technology
