Ring-opening polymerization of lactones catalyzed by surfactant-coated lipases in organic solvents - Surfactants

Ring-opening polymerization of lactones catalyzed by surfactant-coated lipases in organic solvents
Engineering Village 2
2006 Elsevier Inc
Accession number: 03347602487

Title: Ring-opening polymerization of lactones catalyzed by surfactant-coated lipases in organic solvents

Authors: Maruyama, Tatsuo; Noda, Sadafumi; Kamiya, Noriho; Goto, Masahiro

Author affiliation: Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 812-8581, Japan

Serial title: Journal of Chemical Engineering of Japan

Abbreviated serial title: J. Chem. Eng. Jpn.

Volume: v 36

Issue: n 3

Issue date: March 2003

Publication year: 2003

Pages: p 307-312

Language: English

ISSN: 0021-9592

Document type: Journal article (JA)

Publisher: Society of Chemical Engineers, Japan

Abstract: We have performed the ring-opening polymerization of lactones catalyzed by surfactant-coated lipases in organic solvents. A great improvement in the number-average molecular weight (Mn) of the produced polymer was observed compared to that of the lyophilized native lipase. The Mn vs monomer conversion profile suggests that the polymerization catalyzed by the surfactant-coated lipase is a step polymerization, whereas that catalyzed by lyophilized lipase powder is a chain polymerization. The effects of reaction temperature and the reaction solvent on the polymerization of lactones were also investigated.

Number of references: 16

Ei main heading: Organic solvents

Ei controlled terms: Ketones - Ring opening polymerization - Catalysis - Surface active agents - Molecular weight

Uncontrolled terms: Chain polymerizations

Ei classification codes: 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds - 815.2 Polymerization - 802.2 Chemical Reactions - 931.3 Atomic & Molecular Physics

Treatment: Experimental (EXP)

DOI: 10.1252/jcej.36.307

Database: Compendex

Compilation and indexing terms, ? 2006 Elsevier Inc. All rights reserved
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