Thermally reversible cross-linked polyamides and thermo-responsive gels by means of Diels-Alder reaction

被引：136

作者：

Liu, YL ^{[1
]}

Hsieh, CY

Chen, YW

机构：

[1] Chung Yuan Christian Univ, Dept Chem Engn, Chungli 32023, Taoyuan, Taiwan

[2] Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Chungli 32023, Taoyuan, Taiwan

来源：

POLYMER | 2006年 / 47卷 / 08期

关键词：

polyamide; Diels-Alder reaction; thermally reversible;

D O I：

10.1016/j.polymer.2006.02.057

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cross-linked polyamides and polyamide gels were prepared from maleimide-containing polyamides and a tri-functional furan compound and showed thermal reversibility in cross-linking behavior and in gel formation through Diels-Alder (DA) and retro-DA reactions. The rate constant k of the DA cross-linking reaction were 1.25-4.83X10(-5) dm(3) mol(-1) s(-1) in the temperature range of 20-60 degrees C with an activation energy of 32.1 kJ mol(-1) The cross-linking densities, thermal properties, and thermal reversibility of the polyamides/furan polymers were adjustable with the contents of maleimide groups in polyamides. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2581 / 2586

页数：6

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