## Abstract Copolyimide derivatives were prepared from two carboxylic dianhydrides [3,3β²,4,4β²βbenzophenone tetracarboxylic dianhydride (BTDA) and pyromellitic anhydride (PMDA)] and a single diamine (bis[4β(3βaminophenoxy)phenyl]sulfone [BAPS]) following oneβstep polymerization. Copolymers could be
Preparation of sulfonated novel poly(bis[4-(3-aminophenoxy) phenyl]sulfone pyromellite)imide derivatives by heterogeneous sulfonation
β Scribed by Jong-Young Jeon; Bomg-Seob Shim
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 129 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Alternate poly(amide-imide) [P(A-alt-I)] was synthesized from two aromatic diamines and trimellitic anhydride (TMA). When the diamine was 2,2-bis[4-(3aminophenoxy)phenyl]sulfone (BAPS), the resulted P(A-alt-I) was found to be of light color. Specifically, when BAPS was located between two amide grou
A series of new polyamides containing both sulfone and oxyethylene moieties in the polymer chain was prepared by the direct polycondensation of the diamine monomer 2,2-bis[4-[2-(4-aminophenoxy)ethoxy]phenyl]sulfone (BAEPS) and various aromatic dicarboxylic acids in Nmethyl-2-pyrrolidinone (NMP) usin