福建师范大学学报（自然科学版）2001，Vol.17Issue(1)：57-60,4.
聚酰胺酸稳定性的研究
Investigation of Store-stability of Poly(amic acid)s
李秀茹 1童跃进 1陈庆华2
作者信息
- 1. 福建师范大学化学系,
- 2. 福建师范大学实验中心,
- 折叠
摘要
Abstract
A series of poly(amic acid)s based on pyromellitic dianhydride (PMDA) and oxydiphthalic tetracarboxylic dianhydride (ODPA) was prepared in different solvents． Two poly(amic acid)s, from PMDA with 4,4＇-diaminodiphenyl methane or 4,4＇-diamino-3,3＇-dimethyl diphenyl methane, were gelating in N-methyl pyrrotone, and the others were solution． Store-stability of poly(amic acid)s were investigated in different condition such as temperature, gelating state, adding molecular sieve． Gelating poly(amic acid)s have better store-stability than poly(amic acid)s solutions． Addition 0.4 nm molecular sieve is favor of poly(amic acid)s store for long time．关键词
聚酰胺酸/凝胶/分子筛/稳定性分类
化学化工引用本文复制引用
李秀茹,童跃进,陈庆华..聚酰胺酸稳定性的研究[J].福建师范大学学报（自然科学版）,2001,17(1):57-60,4.
