大连理工大学主页平台管理系统蹇锡高新型杂环高性能树脂及其加工应用研究进展中文主页

论文成果

Synthesis and characterization of novel polybenzimidazoles containing 4-phenyl phthalazinone moiety: 点击次数：; 发布时间： 2019-03-09; 发布时间：2019-03-09; 论文类型：期刊论文; 发表时间：2011-09-01; 发表刊物：EUROPEAN POLYMER JOURNAL; 收录刊物：EI、SCIE、Scopus; 卷号：47; 期号：9; 页面范围：1852-1860; ISSN号：0014-3057; 关键字：Polybenzimidazole; 4-Phenyl phthalazinone; Solubility; Thermal property; 摘要：A novel series of homo- and copoly(phthalazinone benzimidazole)s were synthesized from various stoichiometric mixtures of 4-(4-(4-(4-carboxyphenoxy)phenyl)-1-oxophthalazin-2(1H)-yl)benzoic acid (CPPBC) and isophthalic acid (IPA) with 3,3'-diaminobenzidine (DAB) by solution polycondensation in polyphosphoric acid (PPA). The structures of the obtained polymers were characterized by FT-IR and H-1 NMR. The obtained polybenzimidazoles were found to be soluble in aprotic polar solvents such as N-methyl-2-pyrolidinone (NMP), N,N-dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO) and m-cresol, without the addition of inorganic salts. The inherent viscosities of the polybenzimidazoles were in the range of 1.10-2.05 dL/g. All of the polymers show amorphous nature as evaluated by WAXD. These polymers have high glass transition temperatures (T(g)s) in the range of 398-408 degrees C. Thermogravimetric analysis exhibit that these polybenzimidazoles containing 4-phenyl phthalazinone moiety have excellent thermal stability with the temperatures for 5% and 10% weight loss of the polymers ranging from 516 to 594 degrees C and 560 to 672 degrees C, respectively. (C) 2011 Elsevier Ltd. All rights reserved.

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蹇锡高

同专业博导同专业硕导个人学术主页

教授博士生导师硕士生导师

性别：男

毕业院校：大连工学院

学位：硕士

所在单位：化工学院

学科：高分子材料. 高分子化学与物理. 膜科学与技术

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