STUDY ON CRYSTALLIZATION BEHAVIOR OF ALL PARA-POLY(ARYL ETHER SULFONE ETHER KETONE KETONE)

被引：0
|
作者：
Wen Hongli [1 ]
Zhan Yulin [1 ]
Li Jing [1 ]
Zhong Ming [1 ]
Song Caisheng [1 ]
机构：
[1] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330022, Peoples R China
来源：
ACTA POLYMERICA SINICA | 2009年 / 01期
关键词：
Poly(aryl ether sulfone ether ketone ketone); End capped group; Crystallization; Solvent-induced crystallization; CRYSTAL MORPHOLOGY; POLYMORPHISM; IDENTIFICATION; COPOLYMERS; POLYMERS;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Para-poly(aryl ether sulfone ether ketone ketones) (p-PESEKKs), were prepared by low temperature solution polycondensation of 4,4'-bis (phenoxy) diphenyl sulfone (DPODPS) and terephthaloyl chloride (TPC) in AlCI3/DCE/DMF solvent system. The effects of some factors on solvent induced crystallization behavior of p-PESEKKs were investigated and compared. The results showed that p-PESEKKs of low crystallinity were obtained in the AlCI3/DCE/DMF good solvent system, and they became amorphous after fusion because of the influence of tetrahedral cofiguration of sulfuryl. It was found that the solvent induced crystallization rate and degree of crystallinity decreased with increasing the carbon number of ester end groups,and the end groups with the same structure as the main chain were favorable for crystallization. The high molecular weight p-PESEKKs with lower proportion of end groups were easy to be crystallized by solvent inducement.
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页码：7 / 10
页数：4
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