刘程

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研究员

博士生导师

硕士生导师

任职 : 高分子材料系副系主任

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:化工学院

学科:高分子材料. 高分子化学与物理. 功能材料化学与化工

办公地点:大连理工大学西部校区化工实验楼A407室

联系方式:Tel.: 0411-84986191

电子邮箱:liuch1115@dlut.edu.cn

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Soluble and curable poly(phthalazinone ether amide)s with terminal cyano groups and their crosslinking to heat resistant resin

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论文类型:期刊论文

发表时间:2009-03-20

发表刊物:POLYMER

收录刊物:SCIE、EI、Scopus

卷号:50

期号:7

页面范围:1700-1708

ISSN号:0032-3861

关键字:Poly(aryl ether amide)s; Curable; Thermal properties

摘要:Soluble and curable aromatic polyamides have great potential use as processable and heat-resistant polymeric materials. In this study, a novel series of soluble aromatic polyamides (CN-PPAs) containing phthalazinone moiety and crosslinkable terminal cyano groups were synthesized by polycondensation of 1,2-dihydro-2-(4-carboxyphenyl)-4-[4-(4-carboxyphenoxyl)phewnyl]-phthalazinone (DHPZ-DC) with calculated 4,4'-oxydianiline (ODA), followed by end-capping with 4-cyanobenzoic acid (CBA). Thermal crosslinking of CN-PPAs, catalyzed by zinc chloride, was then performed in the presence of terephthalonitrile (TPH) via heating either their films or powders up to 300-340 degrees C. The uncured synthesized polymers have good solubility while the cured samples become insoluble in common organic solvents. Spectra and elemental analysis measurements demonstrate cyclization reaction of terminal cyano groups to form s-triazine rings. The presence of TPH and ZnCl(2) is effective in promoting thermal crosslinking and s-triazine forming reaction of the CN-PPAs under normal pressure. The resulting cured samples exhibit no T(g) tip to 400 degrees C by DSC and have excellent thermal stability. This kind of cyano-terminated poly (phthalazinone ether amide) may be a good candidate as matrix for high performance polymeric materials. (C) 2009 Elsevier Ltd. All rights reserved.