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Enzymatic synthesis of a soluble polyphenol derivative from 4,4′-biphenyldiol

✍ Scribed by Shiro Kobayashi; Hideharu Kurioka; Hiroshi Uyama

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
295 KB
Volume
17
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Enzymatic oxidative polymerization of 4,4′‐biphenyldiol was performed in an aqueous organic solvent using horseradish peroxidase as catalyst. In the polymerization using a mixture of 1,4‐dioxane and phosphate buffer (pH 7.0) (80:20 vol‐%) as solvent, the monomer was quantitatively consumed to give powdery polymeric materials in a high yield. The resulting polymer is soluble in polar solvents such as N,N‐dimethylformamide, dimethyl sulfoxide, and acetone. The molecular weight of the methylated product is 7.3 × 10^3^. The polymer exhibits high thermal stability under nitrogen.

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