## Abstract 1,2,5,6‐Tetraaminoanthraquinone has been condensed with isophthalaldehyde and terephthalaldehyde and their bisulfite addition compounds to yield new heat‐stable polymers. It has also been condensed with pyromellitic anhydride to give the pyrrolone. The highest viscosities were obtained
Polymers containing anthraquinone units: Polymers from 1,2,5,6-tetraaminoanthraquinone
✍ Scribed by Bracke, William ;Marvel, C. S.
- Book ID
- 104535503
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1970
- Tongue
- English
- Weight
- 479 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0449-296X
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✦ Synopsis
Abstract
A preparation for 1,2,5,6‐tetraaminoanthraquinone was worked out. The reactivity of this compound in nucleophilie substitutions and nucleophilic additions was studied. Polymers were made by condensation with pyromellitic anhydride, terephthaloyl chloride, and isophthaloyl chloride. The synthesis and properties of the corresponding model compounds are also reported. After reduction with sodium dithionite, the polymers are soluble in dimethylformamide–water mixtures.
📜 SIMILAR VOLUMES
## Abstract New ladder and partial ladder aromatic heteropolymers have been synthesized from 1,2,5,6‐tetraaminoanthraquinone, 2,3,7,8‐tetrachloro‐1,4,6,9‐tetraazaanthracene, 2,2′‐3,3′‐tetrachloro‐6,6′‐diquinoxaline, 2,2′,3,3′‐tetracholoro‐6,6′‐diquinoxalyl ether and 2,2′,3,3′‐tetrachloro‐6,6′‐diqui
## Abstract In an attempt to synthesize soluble polymers, diphenyl 1,5‐anthraquinonedicarboxylate was treated with 3,3′‐dimercaptobenzidine and 3,3′‐diaminobenzidine under various conditions. Although the ester reacted readily, side reactions prevented the formation of high molecular weight compoun