KINETICS OF FREE-RADICAL MODIFICATION OF POLYOLEFINS IN EXTRUDERS - CHAIN SCISSION, CROSS-LINKING AND GRAFTING

被引：72

作者：

HAMIELEC, AE

GLOOR, PE

ZHU, S

机构：

[1] McMaster Institute for Polymer Production Technology, Department of Chemical Engineering, McMaster University, Hamilton, Ontario

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1991年 / 69卷 / 03期

关键词：

REACTIVE EXTRUSION; CHAIN SCISSION; CROSS-LINKING; GRAFTING; KINETIC MODEL;

D O I：

10.1002/cjce.5450690302

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Free radical reactions, carried out in polymer melts, have become a popular method of chemically modifying polyolefins. The elementary free-radical reactions which are relevant in the chemical modification of polyolefins at high temperatures in extruders, such as chain transfer to polymer via primary and polymer radicals, beta-scission, double bond addition and bimolecular termination, affect chain scission, long chain branching, crosslinking and grafting. This brief review will discuss some of the work focused on the kinetics and mathematical modelling of these reactions.

引用

页码：611 / 618

页数：8

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