不同比例的s-BPDA/i-BPDA型聚酰亚胺共聚结构与性能关系

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (11): 2289.

不同比例的s-BPDA/i-BPDA型聚酰亚胺共聚结构与性能关系

王响, 张鹏, 陈春海, 李鹏, 王冬佶, 党国栋

吉林大学化学学院, 麦克德尔米德实验室, 长春 130012

收稿日期:2010-01-22 出版日期:2010-11-10 发布日期:2010-11-10
通讯作者: 党国栋, 男, 博士, 副教授, 主要从事聚酰亚胺和聚芳醚酮的研究. E-mail: dgd_tong@jlu.edu.cn
基金资助:
国家“九七三”计划项目(批准号: 2010CB631100)和国家“八六三”计划项目(批准号: 2007AA03A231)资助.

Synthesis and Characterization of Copolyimides from s-BPDA/i-BPDA with Different Molar Ratio

WANG Xiang, ZHANG Peng, CHEN Chun-Hai, LI Peng, WANG Dong-Ji, DANG Guo-Dong*

Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China

Received:2010-01-22 Online:2010-11-10 Published:2010-11-10
Contact: DANG Guo-Dong. E-mail: dgd_tong@jlu.edu.cn
Supported by:
国家“九七三”计划项目(批准号: 2010CB631100)和国家“八六三”计划项目(批准号: 2007AA03A231)资助.

摘要/Abstract

摘要： 由不同比例的二酐单体3,3′,4,4′-联苯四酸二酐(s-BPDA)/2,2′,3,3′-联苯四酸二酐(i-BPDA)与二胺单体4,4′-二氨基二苯醚(4,4′-ODA)制得了一系列共聚可溶聚酰亚胺. 采用DSC 、TGA和拉伸等测试方法对所得共聚聚酰亚胺进行了表征, 实验结果表明, 所得聚酰亚胺具有优异的力学性能和热稳定性, 并且随着i-BPDA含量的增加, 聚酰亚胺的溶解性提高, 玻璃化转变温度(Tg)升高, 中间体聚酰胺酸的固有黏度降低.

关键词: 聚酰亚胺, 共聚聚酰亚胺, 联苯四酸二酐, 溶解性

Abstract: A series of organosoluble copolyimides was successfully synthesized from the 2,2′,3,3′-biphenyltetracarboxylic dianhydride(i-BPDA) and 3,3′,4,4′-biphenyltetracarboxylic dianhydride(s-BPDA) with aromatic diamine 4,4′-ODA.The copolyimides were characterized by FTIR, DSC, TGA and DMA. The copo-lyimides hold superior mechanical properties and show improved solubilities, depending on the i-BPDA content. A regular increase of glass transition temperatures and a decrease of inherent viscosities of copolymers with increasing content of i-BPDA were also observed.

Key words: Polyimide, Copolyimide, Biphenyltetracarboxylic dianhydride, Solubility

TrendMD:

王响, 张鹏, 陈春海, 李鹏, 王冬佶, 党国栋. 不同比例的s-BPDA/i-BPDA型聚酰亚胺共聚结构与性能关系. 高等学校化学学报, 2010, 31(11): 2289.

WANG Xiang, ZHANG Peng, CHEN Chun-Hai, LI Peng, WANG Dong-Ji, DANG Guo-Dong*. Synthesis and Characterization of Copolyimides from s-BPDA/i-BPDA with Different Molar Ratio. Chem. J. Chinese Universities, 2010, 31(11): 2289.

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