## Abstract In this study, 3,3′‐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 3,3′,4,4′‐sulfonyldiphthalic anhydride (DSDA)] also were reacted wi
Synthesis of thermally stable aromatic poly(imide amide benzimidazole) copolymers
✍ Scribed by Huei-Hsiung Wang; Shu-Ping Wu
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 194 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0021-8995
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Thermostable poly(amide-imide)s containing para-meta benzoic structure were synthesized by reacting a para-meta benzoic polyamide prepolymer with various diisocyanate-terminated polyimide prepolymers. The polyamide prepolymers were prepared by first reacting m-phenylene diamine and isophthaloyl dich
A novel polymer-forming diimide-diacid, 2,6-bis(4-trimellitimidophenoxy)naphthalene, was prepared by the condensation reaction of 2,6-bis(4-aminophenoxy)naphthalene with trimellitic anhydride (TMA). A series of novel aromatic poly(amideimide)s containing 2,6-bis(phenoxy)naphthalene units were prepar
## Abstract The preparation of a new unsymmetrical kink non‐coplanar heterocyclic diamine, 1,2‐dihydro‐2‐(4‐aminophenyl)‐4‐[4‐(3‐phenyl‐4‐aminophenoxy)phenyl]‐(2__H__)phthalazin‐1‐one (3), from a readily available unsymmetrical phthalazinone bisphenol‐like (1) was described. The diamine can be dire