FREE-RADICAL CROSS-LINKING COPOLYMERIZATION OF STYRENE UNSATURATED POLYESTER RESINS .3. KINETICS GELATION MECHANISM

被引：46

作者：

HSU, CP ^{[1
]}

LEE, LJ ^{[1
]}

机构：

[1] OHIO STATE UNIV,DEPT CHEM ENGN,COLUMBUS,OH 43210

来源：

POLYMER | 1993年 / 34卷 / 21期

基金：

美国国家科学基金会;

关键词：

COPOLYMERIZATION; KINETICS; GELATION;

D O I：

10.1016/0032-3861(93)90158-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Based on the results of integrated analysis given in parts 1 and 2, a kinetics-gelation mechanism of styrene (ST)/unsaturated polyester (UPE) resins is proposed. The curing process can be divided into five stages: induction, microgel formation, transition with or without phase separation, macrogelation and post-gelation. A summary of the experimental results at different stages of ST/UPE resins with ST/UPE molar ratios of 2 and 4 at 40-degrees-C is given. The kinetics-gelation mechanism based on the concept of microstructure formation is then discussed.

引用

页码：4516 / 4523

页数：8