Synthesis and Characterization of Polyimides from Unsymmetrical Diamine with Cyano Groups

被引:0
作者
Hyun A Kang
Im Sik Chung
Masa-aki Kakimoto
Sang Youl Kim
机构
[1] Korea Advanced Institute of Science and Technology,Center for Advanced Functional Polymers, Department of Chemistry and School of Molecular Science (BK21)
[2] Tokyo Institute of Technology,Department of Organic and Polymeric Materials
来源
Polymer Journal | 2001年 / 33卷
关键词
Polyimide; Unsymmetrical Diamine; 2-Cyano-4,4′-diaminodiphenyl Ether; Solution Imidization;
D O I
暂无
中图分类号
学科分类号
摘要
A new diamine monomer containing cyano group, 2-cyano-4,4′-diaminodiphenyl ether, was synthesized and polymerized to polyimides with several aromatic dianhydrides via two kinds of imidization methods, namely, thermal or solution imidization methods. By the thermal imidization method, tough, flexible, and creasable polyimide films were obtained except the polyimide from pyromellitic dianhydride. The polyimides have high Tg values and are stable up to 500°C in air. The polyimide made from the diamine and 4,4′-oxyphthalic anhydride via solution imidization method was partially soluble in polar aprotic solvents, but it becomes soluble when the cyano groups are hydrolyzed.
引用
收藏
页码:284 / 289
页数:5
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