宇航材料工艺2011，Vol.41Issue(1)：46-50,5.
基于aODPA的PI薄膜的合成与性能
Synthesis and Properties of PI Films From 2,3,3',4'-Oxydiphthalic Anhydride
摘要
Abstract
A series of PI films were prepared from an asymmetrical dianhydride ,2,3 ,3',4' -oxydiphthalic anhydride ( aODPA) and several aromatic diamines. The effects of the structures of the Pls on their thermal stability, solubility, mechanical and optical properties were systemically investigated. The results showed that the asymmetncal structure of the aODPA gave the PIs good solubility in common organic solvents and good optical transparency in ultraviolet-visible light region. The optical transmittances of the PI films at 450 nm are all higher than 85％. Meanwhile , the PI films maintained good thermal stability with 5％ weight loss at temperatures higher than 510℃ in nitrogen and good mechanical properties with tensile strengths higher than 80 MPa.关键词
聚酰亚胺/光学透明性/耐热稳定性/力学性能引用本文复制引用
李卓,刘金刚,杨海霞,范琳,杨士勇..基于aODPA的PI薄膜的合成与性能[J].宇航材料工艺,2011,41(1):46-50,5.基金项目
国家自然科学基金(50403025) （50403025）
中国科学院化学研究所分子科学中心项目(CMS-LX201003) （CMS-LX201003）
