A series of polyimide/vanadium pentoxide (PI/V 2 O 5 ) hybrid film has been successfully fabricated through the in situ formation of V 2 O 5 within a polymer matrix by sol-gel process. The polyamic acid (PAA) is prepared from 4,4 0 -diaminodiphenyl ether (ODA) and 3,3 0 ,4,4 0 -benzophenonetetracarboxylic anhydride (BTDA) in N-methylpyrrolidinone (NMP) solvent. Then different amounts of Bis-(2,4-pentanedionato) vanadium oxide are incorporated into polyamic acid (PAA) matrix, respectively and then thermally imidized to form PI/V 2 O 5 hybrid membranes. The imidization temperature and time are optimized by FTIR measurements through the observation of V 2 O 5 absorption peak. The influence of V 2 O 5 content on the thermal stability, morphology and mechanical properties of PI/V 2 O 5 hybrid films are studied.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.