摘要
丙烯酸β-羟丙酯（HPA） 是一种具有多种反应功能的丙烯酸酯类单体,由它制得的大分子同时带有羰基、酯基和羟基,因而可用它制备特定功能的大分子如耐火树脂、涂料、油田助剂及水处理剂等,国内外对HPA的共聚合活性报道很少,CHOW曾研究过HPA与苯乙烯（St）的共聚合,并用Mayo-Lewis方程法计算出它们的竞聚率。本文研究了HPA与St在甲苯溶液中的自由基共聚合,用Mayo-Lewis方程法、FR法、YBR法及K-T法四种方法分别计算出St-HPA共聚合出竞聚率r<sub>1</sub>、r<sub>2</sub>及HPA的Q、e值,作出了共聚物组成曲线,并由此计算出St-HPA共聚物的平均序列长度及序列长度分布。
β-Hydroxypropyl acrylate (HPA) and styrene (St) were copolymerized with ABIN as initiators. The reactivity ratios of the monomers were determined by several methods and the following data were obtained:γHPA-0.36, rSt = 0.45 (Mayo Lewis method); rHpA = 0-32, rst = 0.48 (FR method); rHPA = 0.34, rst = 0.46 (YBR method); rHpA = 0.33, rst = 0.48 (K-T method). Sequence distribution of HPA-St copolymer were also studied.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1993年第2期242-245,共4页
Acta Polymerica Sinica
关键词
HPA
苯乙烯
共聚
3-Hydroxypropyl acrylate, Free-radical copolymerization, Reactivity ra- tios, Q. e values, Sequence distribution
