Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate

Hiroki Ebata; Kazunobu Toshima; Shuichi Matsumura

doi:10.1002/mabi.200700018

Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate

Hiroki Ebata, Kazunobu Toshima, Shuichi Matsumura

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

72 Citations (Scopus)

Abstract

High-molecular-weight polyricinoleate, with an M̄_w of 100 600, was enzymatically prepared by the polycondensation of methylricinoleate using immobilized lipase from Pseudomonas cepacia (IM-PC) in bulk in the presence of 4 Å molecular sieves at 80 °C for 7 d. Polyricinoleate was a viscous liquid at room temperature with a glass transition temperature (T_g) of -74.8 °C, showed no crystallinity and was biodegraded by activated sludge. Polyricinoleate was readily cured using a dicumyl peroxide at 170°C for 30 min to produce a chloroform insoluble cross-linked polyricinoleate with a hardness of 50A using durometer A.

Original language	English
Pages (from-to)	798-803
Number of pages	6
Journal	Macromolecular Bioscience
Volume	7
Issue number	6
DOIs	https://doi.org/10.1002/mabi.200700018
Publication status	Published - 2007 Jun 7

Keywords

Biodegradability
Crosslinking
Curing
Lipase
Poly-condensation
Polyricinoleate

ASJC Scopus subject areas

Biotechnology
Bioengineering
Biomaterials
Polymers and Plastics
Materials Chemistry

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10.1002/mabi.200700018

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T1 - Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate

AU - Ebata, Hiroki

AU - Toshima, Kazunobu

AU - Matsumura, Shuichi

PY - 2007/6/7

Y1 - 2007/6/7

N2 - High-molecular-weight polyricinoleate, with an M̄w of 100 600, was enzymatically prepared by the polycondensation of methylricinoleate using immobilized lipase from Pseudomonas cepacia (IM-PC) in bulk in the presence of 4 Å molecular sieves at 80 °C for 7 d. Polyricinoleate was a viscous liquid at room temperature with a glass transition temperature (Tg) of -74.8 °C, showed no crystallinity and was biodegraded by activated sludge. Polyricinoleate was readily cured using a dicumyl peroxide at 170°C for 30 min to produce a chloroform insoluble cross-linked polyricinoleate with a hardness of 50A using durometer A.

AB - High-molecular-weight polyricinoleate, with an M̄w of 100 600, was enzymatically prepared by the polycondensation of methylricinoleate using immobilized lipase from Pseudomonas cepacia (IM-PC) in bulk in the presence of 4 Å molecular sieves at 80 °C for 7 d. Polyricinoleate was a viscous liquid at room temperature with a glass transition temperature (Tg) of -74.8 °C, showed no crystallinity and was biodegraded by activated sludge. Polyricinoleate was readily cured using a dicumyl peroxide at 170°C for 30 min to produce a chloroform insoluble cross-linked polyricinoleate with a hardness of 50A using durometer A.

KW - Biodegradability

KW - Crosslinking

KW - Curing

KW - Lipase

KW - Poly-condensation

KW - Polyricinoleate

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Lipase-catalyzed synthesis and curing of high-molecular-weight polyricinoleate

Abstract

Keywords

ASJC Scopus subject areas

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