Characterization of phenolic polymers synthesized by enzyme-mediated reactions in bulk solvents and at oil-water interfaces

被引：14

作者：

Ayyagari, M ^{[1
]}

Akkara, JA ^{[1
]}

Kaplan, DL ^{[1
]}

机构：

[1] USA,NATICK RES DEV & ENGN CTR,SOLDIER SYST COMMAND,NATICK,MA 01760

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC MATERIALS SENSORS AND SYSTEMS | 1996年 / 4卷 / 03期

关键词：

phenolic polymers; synthesis; enzymes; bulk solvents; oil-water interfaces;

D O I：

10.1016/S0928-4931(96)00144-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phenolic polymers are synthesized from horseradish peroxidase-catalyzed reactions in the presence of hydrogen peroxide. The reactions are carried out in homogeneous mixtures of water and polar solvents such as DMF as well as at the oil-water interface of AOT/isooctane reversed micelles and isooctane-water biphasic systems. Polymer characteristics are analyzed using thermal, spectroscopic and chromatographic techniques. Polymer molecular weight dependence on the reaction medium composition is demonstrated for poly(p-ethylphenol) and poly(m-cresol). It is shown that thermal curing of polymers leads to cross-linking, and as a result, there is a significant increase in molecular weight. Cross-linking appears to be directly to the aromatic rings, and not via ether links, as inferred from infrared spectra. A process scheme for the production, under controlled conditions, of phenolic polymers in ethanol-water mixtures is presented. The process allows enhanced monomer conversions and ability to tailor polymer molecular weight. Possible applications for phenolic polymers are discussed.

引用

页码：169 / 173

页数：5

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