大连理工大学主页平台管理系统蹇锡高反应性挤出聚乙烯接枝马来酸二丁酯的研究中文主页

论文成果

Facile synthesis of new aromatic polyamides based on 1,2-dihydro-2-(4-carboxylphenyl)-4-[4-(4-carboxyl-phenoxy)-3-methylpheny l]phthalazin-1-one: 点击次数：; 发布时间： 2019-03-10; 发布时间：2019-03-10; 论文类型：期刊论文; 发表时间：2005-02-01; 发表刊物：CHINESE JOURNAL OF CHEMISTRY; 收录刊物：SCIE、Scopus; 卷号：23; 期号：2; 页面范围：200-203; ISSN号：1001-604X; 关键字：poly(arylene ether amide); heterocyclic polymer; high-performance polymer; direct polycondensation; phthalazinone; 摘要：A new monomer diacid, 1,2-dihydro-2-(4-carboxylphenyl)-4-[4-(4-carboxylphenoxy)-3-methylphenyl]phthalazin-1-one (3), was synthesized through the aromatic nucleophilic substitution reaction of a readily available unsymmetrical phthalazinone 1 bisphenol-like with p-chlorobenzonitrile in the presence of potassium carbonate in N,N-dimethylacetamide and alkaline hydrolysis. The diacid could be directly polymerized with various aromatic diamines 4a-4e using triphenyl phosphite and pyridine as condensing agents to give five new aromatic poly(ether amide)s 5a-5e containing the kink non-coplanar heterocyclic units with inherent viscosities of 1.30-1.54 dL/g. The polymers were readily soluble in a variety of solvents such as N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA), dimethylsulfoxide (DMSO), N-methyl-2-pyrrolidinone (NMP), and even in m-cresol and pyridine (Py). The transparent, flexible and tough films could be formed by solution casting. The glass transition temperatures T-g were in the range of 286-317 degreesC.

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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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