大连理工大学主页平台管理系统蹇锡高主链含芳基均三嗪环结构氮杂环聚芳醚及其C纤维复合材料中文主页

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Synthesis and characterization of 4,5-bis(4-fluorobenzoyl)1-methylcyclohexene and its polyethers: 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：2002-06-06; 发表刊物：JOURNAL OF APPLIED POLYMER SCIENCE; 收录刊物：EI、SCIE、Scopus; 卷号：84; 期号：10; 页面范围：1866-1871; ISSN号：0021-8995; 关键字：4,5-bis(4-fluorobenzoyl)-1-methylcyclohexene; reactive; poly(aryl ether ketone); ring-closing reaction; 摘要：A new difluoride 4,5-bis(4-fluorobenzoyl)-1-methylcyclohexene (DFKK) has been prepared with fumaryl chloride, fluorobenzene, and 2-methyl-1,3-butadiene as starting materials through two steps of reactions. This DFKK monomer undergoes reaction with 2,2-(p-hydroxyphenyl)-iso-propane (BPA) in the presence of excess anhydrous potassium carbonate in sulfolane to give a high molecular weight reactive poly(ether ketone ketone) (PEKK) that is very soluble in solvents such as chloroform and N,N-dimethylformamide at room temperature, has glass transition temperature of 182degreesC, and is easily cast into flexible and bale ivory film with tensile strength of 64 MPa. The 5% weight loss temperature is 407degreesC. Ring-closing reaction of PEKK with hydrazine gives cyclized PEKK (CPEKK) with improved thermal stability and reduced solubility. (C) 2002 Wiley Periodicals.

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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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