王忠刚

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:中国科学院长春应用化学研究所

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

办公地点:西部校区化工实验楼A座206

联系方式:0411-84986096,13591156428

电子邮箱:zgwang@dlut.edu.cn

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Tetraphenylsilane-containing polyarylates with well-defined functional groups via postpolymerization modification

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论文类型:期刊论文

发表时间:2009-04-24

发表刊物:POLYMER

收录刊物:SCIE、EI

卷号:50

期号:9

页面范围:2025-2034

ISSN号:0032-3861

关键字:Functionalization of polymers; Polyarylate; Tetraphenylsilane

摘要:New tetraphenylsilane-containing polyarylate with two pendant benzyl ester groups was synthesized Successfully by direct polycondensation from a new silicon-containing aromatic diacid monomer bis[p-(benzyloxycarbonyl)phenyl]-bis(p-carboxyphenyl)silane (BBCS) with p-dihydroxybenzene in pyridine, using dimethylformamide as the activator and p-tosyl chloride as the condensing agent. Then, the benzyl ester groups were smoothly converted to carboxyl groups by catalytic hydrogenation, obtaining the polyarylate with two carboxyl groups attached on the phenylenes of tetraphenylsilane moiety. The new monomer and polyarylates were characterized by (1)H NMR, FTIR, wide angle X-ray diffraction and gel permeation chromatography methods. The carboxyl-containing polyarylate exhibited good solubility in most polar aprotic solvents and had the 5% weight loss over 400 degrees C. The presence of well-defined carboxyl groups and rigid tetrahedral structure of tetraphenylsilane in the polyarylate provides the feasible routes to the preparation of either hypercrosslinked covalent organic framework materials or optoelectronic materials through the reaction with chromophoric compounds. (C) 2009 Elsevier Ltd. All rights reserved.