Wen-Bo Wang

Structurally tailored colorless transparent polyimides via alkyl substituent engineering and dianhydride selection: Optical, thermal with DFT insights

In this work, four biphenyl diamine monomers bearing gradient steric hindrance from methyl and tert-butyl substituents were synthesized and copolymerized with 6FDA and CHDA dianhydrides to fabricate a series of colorless and transparent polyimide (CPI) films. The regulating mechanisms of substituent steric hindrance...