摘要
用标准样品确定了平均缔合数计算公式中的参数α、g,并对聚丁二烯羧酸锂的平均缔合数进行了测定.发现存在二、四两种缔合体,且其缔合程度与聚丁二烯的分子量、浓度、羧化反应程度有关.
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12期823-827,共5页
Petrochemical Technology
