Polyimidazopyrrolones and related polymers. II. Polyimidazopyrrolones from aromatic dianhydrides and 3,3′-dichloro-5,5′-diaminobenzidine
✍ Scribed by G. M. Bower; L. W. Frost
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 363 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0021-8995
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The gas transport properties of a series polyetherimides, which were prepared from 1,4his(3,4-dicarboxyphenoxy )benzene dianhydride (HQDPA) with l,3-phenylenediamine or 3,5-diaminobenzic acid (DBA) or its esters are reported. The effects of carboxylic group ( -COOH) and carboxylic ether groups ( -CO
## Abstract A series of poly(ether imide)s (PEIs) with light colors and good mechanical properties were synthesized from 2,5‐bis(3,4‐dicarboxyphenoxy)biphenyl dianhydride and various aromatic ether–diamines via a conventional two‐step polymerization technique that included ring‐opening polyaddition