Premium
Novel fluorinated polyimides derived from an unsymmetrical diamine containing trifluoromethyl and methyl pendant groups
Author(s) -
Wang ChenYi,
Zhao HuiPeng,
Li Guang,
Jiang JianMing
Publication year - 2011
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1678
Subject(s) - polyimide , materials science , diamine , condensation polymer , trifluoromethyl , polymer chemistry , polymer , dielectric , casting , chemical engineering , organic chemistry , composite material , chemistry , alkyl , optoelectronics , layer (electronics) , engineering
Novel fluorinated polyimides were prepared from an unsymmetrical diamine, 3‐methyl‐4‐(4‐amino‐2‐trifluoromethylphenoxy)‐4'‐aminobenzophenone ( 3 ), with four aromatic dianhydrides via a one‐step high‐temperature polycondensation procedure. All the obtained polyimides were soluble in some polar solvents such as NMP, DMAc, and DMF. Flexible and tough films were prepared by casting from polymer solution. These polyimide films exhibited high optical transparency, good mechanical and thermal properties. Moreover, they possessed low dielectric constants and low‐moisture absorption. Due to their properties, these fluorinated polyimides could be considered as photoelectric and microelectronic materials. Copyright © 2010 John Wiley & Sons, Ltd.