Control of molecular weight distribution in polycondensation polymers 2. Poly(ether ketone) synthesis

被引：29

作者：

Shibasaki, Y

Araki, T

Nagahata, R

Ueda, M

机构：

[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

[2] Natl Inst Adv Ind Sci & Technol, AIST, Tsukuba, Ibaraki 3058565, Japan

来源：

EUROPEAN POLYMER JOURNAL | 2005年 / 41卷 / 10期

关键词：

controlled polymerization; polycondensation; poly(ether ketones); molecular weight distribution; condensative chain polymerization;

D O I：

10.1016/j.eurpolymj.2005.05.001

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Synthesis of aromatic poly(ether ketone) (3) with a narrow molecular weight distribution (M-w/M-n) was investigated via polycondensation. M(n)s of 3 could be controlled varying the feed ratio of monomer (1) and initiator (2) maintaining relatively narrow M-w/M(n)s (<1.3). The kinetics of polycondensation obeyed a first-order relationship between polycondensation time and -(1/[2](0)) In([1]/[1](0)), and the rate of polycondensation was estimated as 2.57 mol(-1) L h(-1). MALDITOF mass analysis of 3 indicated that polycondensation should proceed via chain growth manner to give 3 having an initiator unit in each chain end. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2428 / 2433

页数：6

共 20 条

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