Tuning of activity, induction period and polymer properties of double metal cyanide catalyzed ring-opening polymerizations of propylene oxide by using quaternary ammonium salts

被引：36

作者：

Lee, Sanghyun ^{[1
]}

Baek, Seung Tae ^{[1
]}

Anas, K. ^{[1
]}

Ha, Chang-Sik ^{[1
]}

Park, Dae-Won ^{[1
]}

Lee, Jang Woo ^{[1
]}

Kim, Il ^{[1
]}

机构：

[1] Pusan Natl Univ, Div Chem Engn, Pusan 609735, South Korea

来源：

POLYMER | 2007年 / 48卷 / 15期

关键词：

double metal cyanide catalyst; propylene oxide; quaternary ammonium salts; CRYSTAL-STRUCTURE; ZNX2; X; COPOLYMERIZATION; EPOXIDES; SYSTEMS; BR; CL;

D O I：

10.1016/j.polymer.2007.05.072

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polymerizations of propylene oxide (PO) have been carried out by using double metal cyanide (DMC) catalyst prepared by reacting ZnCl2 and K-3[Co(CN)(6)] in the presence of tert-butyl alcohol ((BuOH)-Bu-t) as a complexing agent. The catalytic activity and the induction period for PO polymerizations catalyzed by DMC are tunable by using various quaternary ammonium salts (QAS) as external additives. The DMC/QAS binary catalyst improves polymer properties as well such as molecular weight, molecular weight distribution, viscosity, and unsaturation level. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4361 / 4367

页数：7