A new class of high Tg and organosoluble polynaphthalimides

被引：19

作者：

Li, Wenmu

Zhang, Suobo ^{[1
]}

Chen, Guang

Zhang, Quanyuan

机构：

[1] Acad Sinica, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

POLYMER | 2007年 / 48卷 / 11期

基金：

中国国家自然科学基金;

关键词：

polyimides; high performance polymer; polynaphthalimidcs;

D O I：

10.1016/j.polymer.2007.03.065

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new class of soluble six-membered ring polynaphthalimides (PNIs) was synthesized from asymmetrical fluorinated naphthalenesubstituted monomers. All the resulting PNIs were easily soluble in many organic solvents, such as N-methyl-2-pyrrolidinone (NMP), N,N-dimethylacetamide (DMAc), dimethyl sulfoxide (DMSO). and chloroform. They also showed good thermal stability with glass transition temperature of 340-386 degrees C, 10% weight loss temperature in excess of 529 degrees C. Polyimide 3c could be solution-cast into tough and flexible film. The film had a tensile strength, elongation at break, and Young's modulus of about 117.6 Wa, 23.6%, and 1.77 GPa, respectively. The gas permeation property of the film of 3c was investigated with oxygen permeability coefficient (PO2 = 3.99) and permeability selectivity coefficient of oxygen to nitrogen (P-O2/P-N2 = 5.27). Therefore, these materials are expected to be a good alternative to PIs based on five-membered rings with applications in gas separation membranes. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3082 / 3089

页数：8

共 40 条

[1] Aliphatic/aromatic polyimide lonomers as a proton conductive membrane for fuel cell applications [J].