摘要
本文研究了丙烯酸甲酯(MA)和异丁烯(IB)在AlEtCl_2,BPO存在下的聚合反应机理及动力学。结果表明:当[IB]≥[MA]时,共聚合是按三元络合单体(T)均聚的机理进行,形成(MA)-(IB)的交替共聚物;当[IB]<[MA]时,则形成富MA的含MA嵌段序列的共聚物,共聚是由三元络合单体(T)和二元络合单体(B),按无规共聚机理进行的。
The kinetics and mechanism of copolymerization of methyl acrylate (MA) and isobuty-lene (IB) in the presence of AlEtCl2 and benzoyl peroxide (BPO) has been examined. It is suggested that when [IB]≥[MA], the copolymerization proceeds via a homopolymerization of a three-component complexed monomer (T) to form the alternating MA-IB copolymer. When [MA]>[IB], the formation of a MA-IB copolymer rich in MA and containing MA blocks may occur through the copolymerization of a three-component complexed monomer (T) and a two-component complexed monomer (B), or simply MA.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1993年第6期707-712,共6页
Acta Polymerica Sinica
关键词
丙烯酸酯
异丁烯
共聚
动力学
acrylate, isobutylene, Alternating copolymerization, Kinetics
