## Abstract Several polybenzimidazoles containing cardo groups were prepared: A cardodicarboxylic acid, 9,9‐bis(4‐carboxyphenyl)fluorene, and two cardotetramines, 9,9‐bis(3,4‐diaminophenyl)fluorene and 9,9‐bis(3,4‐diaminophenyl)10‐anthrone. The cardodicarboxylic acid was condensed with aromatic tet
✦ LIBER ✦
Preparation and properties of polybenzimidazoles containing dibenzothiophenediyl or 5,5-dioxodibenzothiophenediyl units
✍ Scribed by P.R. Srinivasan; V. Mahadevan; M. Srinivasan
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 203 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0032-3861
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