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Reduction and cyclization to form poly(benzimidazole amide imide) copolymers

โœ Scribed by Huei-Hsiung Wang; Shu-Ping Wu


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
161 KB
Volume
91
Category
Article
ISSN
0021-8995

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Thermal and thermo-oxidative degradation
โœ Huei-Hsiung Wang; Shu-Ping Wu ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 165 KB ๐Ÿ‘ 2 views

## Abstract In this study, 3,3โ€ฒโ€dinitrobenzidine was first reacted with excess isophthaloyl chloride to form a monomer with dicarboxylic acid end groups. Two types of aromatic dianhydride, [viz., pyromellitic dianhydride (PMDA) and 3,3โ€ฒ,4,4โ€ฒโ€sulfonyldiphthalic anhydride (DSDA)] also were reacted wi