𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Benzimidazole, benzothiazole, and benzoxazole polymers with anthracene recurring units

✍ Scribed by Kokelenberg, Hendrik ;Marvel, C. S.

Book ID
104535508
Publisher
Wiley (John Wiley & Sons)
Year
1970
Tongue
English
Weight
588 KB
Volume
8
Category
Article
ISSN
0449-296X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In an attempt to prepare polymers which might be oxidized to compounds soluble in alkali diphenyl 1,5‐anthracenedicarboxylate was reacted with diaminobenzidine, dimercaptobenzidine, and diaminobiphenol in the melt and with dimercaptobenzidine dihydrochloride in polyphosphoric acid. Compounds of high molecular weight were obtained and their thermal and oxidative stability evaluated. Model compounds were prepared and their ultraviolet spectra compared with those of the polymers. Oxidation with nitric acid or chromium trioxide yielded some anthraquinone derivatives, but side reactions prevented the formation of useful products.

📜 SIMILAR VOLUMES

Polymers containing anthraquinone units:
Polymers containing anthraquinone units: Benzimidazole and benzothiazole polymers
✍ Kokelenberg, Hendrik ;Marvel, C. S. 📂 Article 📅 1970 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 466 KB

## 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