financially supported by the National Natural Science Foundation of China(No.50973073)
The effect of benzimidazole units on thermal imidizaiton was studied when they were introduced into the main chain of poly(amic acid) (PAA). The thermal imidization process of PAA-PABZ synthesized by 3,3',4,4'- ...
Supported by the National Natural Science Foundation of China(No.50973073);the Science and Technology Projects of Chengdu City, China(No.10GGYB114GX-182)
A diamine monomer 4,4′-methylenedianiline(MDA) was introduced to modify the polyimide of pyromellitic dianhydride(PMDA) and 4,4′-oxydianiline(ODA) by polycondensation. A series of polyamic acids was synthesize...
Supported by the National Natural Science Foundation of China(Nos.50773044,50973073)
A novel biphenyl side-chained diamine with alkyloxy spacer and alkyloxy tail,4'-butoxy-4-(3,5-diaminobenzoyloxy)hexyloxybiphenyl(C6BBC4),was synthesized and characterized by FTIR and 1 H NMR.A series of polyimide...