南京工业大学学报（自然科学版）2012，Vol.34Issue(2)：44-47,4.DOI:10.3969/j.issn.1671-7627.2012.02.010
3,4'-ODA-ODA-PMDA聚合物的性能
Properties of polyimides for 3,4'-ODA-ODA-PMDA
赵婷燕 1董云飞 1俞娟 1黄培1
作者信息
- 1. 南京工业大学化学化工学院,材料化学工程国家重点实验室,江苏南京210009
- 折叠
摘要
Abstract
The polyimide was synthesized from asymmetrical monomer 3,4'-oxydianiline (3,4'-ODA) ,4, 4'-Oxydianiline(ODA) and pyromellitic dianhydride( PMDA) by one-step procedure, to investigate the effect of structure symmetry on the properties of polyimides (PI). The properties of polyimides were characterized by Fourier transform infrared spectroscopy ( FT-IR ) , thermomechanical analysis ( TMA), thermogravimetric analysis (TGA), and universal tester. Results showed that asymmetry enhanced the solubility in organic solvents, reduced the glass transition temperature to 314 ℃, the tensile strength to 91. 33 Mpa,and elastic modulus to 1536 Mpa. Thus, mechanical properties of PI were improved.关键词
聚酰亚胺/不对称结构/3,4-二氨基二苯醚Key words
polyimide/asymmetric structure/3,4'-oxydianiline分类
化学化工引用本文复制引用
赵婷燕,董云飞,俞娟,黄培..3,4'-ODA-ODA-PMDA聚合物的性能[J].南京工业大学学报（自然科学版）,2012,34(2):44-47,4.
