Masatoshi Hasegawa, Daiki Hirano, Mari Fujii, Misako Haga, Eiichiro Takezawa, Shinya Yamaguchi, Atsushi Ishikawa and Takashi Kagayama Solution-processable colorless polyimides derived from hydrogenated pyromellitic dianhydride with controlled steric structure Journal of Polymer Science Part A: Polymer Chemistry 51
This work presents novel polyimides (PIs) derived from 1R,2S,4S,5R-cyclohexanetetracarboxylic dianhydride (H″-PMDA). In particular, the PI system derived from H″-PMDA and 4,4′-oxydianiline simultaneously achieved excellent optical transparency, a very high Tg exceeding 300 °C, high toughness (elongation at break > 70%), and good solution processability as plotted within the target area in this figure. The results suggest that the H″-PMDA-based PI systems can be promising candidates for novel high-temperature plastic substrate materials in electronic paper displays.
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