Preparation and pervaporation performance of 3,3-bis[4-(4-aminophenoxy)phenyl] phthalide based polyimide membranes
β Scribed by Y. C. Wang; Y. S. Tsai; K. R. Lee; J. Y. Lai
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 108 KB
- Volume
- 96
- Category
- Article
- ISSN
- 0021-8995
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## 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
## Diamine 3,3-bis[4-(4-aminophenoxy) -3-methylphenyl]phthalide (BAMP) was derived from the o-cresolphthalein, and then it was polycondensated with various aromatic dicarboxylic acids and dianhydrides to synthesize polyamides (PAs) and polyimides (PIs), respectively. PAs have inherent viscosities
A series of organosoluble aromatic polyimides (PIs) was synthesized from 5,5Π-bis[4-(4-aminophenoxy)phenyl]-4,7-methanohexahydroindan (3) and commercial available aromatic dianhydrides such as 3,3Π,4,4Π-biphenyltetracarboxylic dianhydride (BPDA), 4,4Π-oxydiphthalic anhydride (ODPA), 4,4Π-sulfonyl di