MC Choi, JC Hwang, C Kim,
S Ando… - Journal of Polymer …, 2010 - Wiley Online Library
Abstract Novel polynorbornene (PNB)‐polyimide (PI) copolymers were synthesized based
on poly (N‐phenyl‐exo‐norbornene‐5, 6‐dicarboximide)(PPhNI) and chlorinated PI …