Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme

Asato Kondo, Kazunobu Toshima, Shuichi Matsumura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Cyclic oligomers obtained by the enzymatic degradation of aliphatic polyesters are attractive as raw materials for chemical recycling. In this report, molecularly pure cyclic oligomers of butylene adipate, which were obtained by the lipase-catalyzed degradation of poly (butylene adipate), were studied with respect to the polymerization by the enzyme. That is, poly (butylene adipate) was degraded in dry toluene using Candida antarctica lipase to produce cyclic oligomers mainly consisting of cyclic monomer to cyclic tetramer. It was found that cyclic dimer to tetramer were quickly polymerized by lipase to produce high-molecular weight polymers within 30 min. On the other hand, cyclic monomer was slowly polymerized, and it took longer than 120 min for complete conversion. Similar tendencies were observed for PCL degradation and repolymerization.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages1995
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period05/5/2505/5/27

Fingerprint

Oligomerization
Lipases
Oligomers
Polyesters
Enzymes
Polymerization
Degradation
Monomers
Candida
Dimers
Toluene
Recycling
Raw materials
Molecular weight
Polymers

Keywords

  • Cyclic oligomer
  • Lipase
  • Poly (butylene adipate)
  • Polymerization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kondo, A., Toshima, K., & Matsumura, S. (2005). Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme. In Polymer Preprints, Japan (1 ed., Vol. 54, pp. 1995)

Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme. / Kondo, Asato; Toshima, Kazunobu; Matsumura, Shuichi.

Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 1995.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kondo, A, Toshima, K & Matsumura, S 2005, Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme. in Polymer Preprints, Japan. 1 edn, vol. 54, pp. 1995, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 05/5/25.
Kondo A, Toshima K, Matsumura S. Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme. In Polymer Preprints, Japan. 1 ed. Vol. 54. 2005. p. 1995
Kondo, Asato ; Toshima, Kazunobu ; Matsumura, Shuichi. / Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme. Polymer Preprints, Japan. Vol. 54 1. ed. 2005. pp. 1995
@inproceedings{d64eaec5060a45f893ef9732a8757f6e,
title = "Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme",
abstract = "Cyclic oligomers obtained by the enzymatic degradation of aliphatic polyesters are attractive as raw materials for chemical recycling. In this report, molecularly pure cyclic oligomers of butylene adipate, which were obtained by the lipase-catalyzed degradation of poly (butylene adipate), were studied with respect to the polymerization by the enzyme. That is, poly (butylene adipate) was degraded in dry toluene using Candida antarctica lipase to produce cyclic oligomers mainly consisting of cyclic monomer to cyclic tetramer. It was found that cyclic dimer to tetramer were quickly polymerized by lipase to produce high-molecular weight polymers within 30 min. On the other hand, cyclic monomer was slowly polymerized, and it took longer than 120 min for complete conversion. Similar tendencies were observed for PCL degradation and repolymerization.",
keywords = "Cyclic oligomer, Lipase, Poly (butylene adipate), Polymerization",
author = "Asato Kondo and Kazunobu Toshima and Shuichi Matsumura",
year = "2005",
language = "English",
volume = "54",
pages = "1995",
booktitle = "Polymer Preprints, Japan",
edition = "1",

}

TY - GEN

T1 - Studies on Cyclic Oligomerization and polymerization of polyesters using an enzyme

AU - Kondo, Asato

AU - Toshima, Kazunobu

AU - Matsumura, Shuichi

PY - 2005

Y1 - 2005

N2 - Cyclic oligomers obtained by the enzymatic degradation of aliphatic polyesters are attractive as raw materials for chemical recycling. In this report, molecularly pure cyclic oligomers of butylene adipate, which were obtained by the lipase-catalyzed degradation of poly (butylene adipate), were studied with respect to the polymerization by the enzyme. That is, poly (butylene adipate) was degraded in dry toluene using Candida antarctica lipase to produce cyclic oligomers mainly consisting of cyclic monomer to cyclic tetramer. It was found that cyclic dimer to tetramer were quickly polymerized by lipase to produce high-molecular weight polymers within 30 min. On the other hand, cyclic monomer was slowly polymerized, and it took longer than 120 min for complete conversion. Similar tendencies were observed for PCL degradation and repolymerization.

AB - Cyclic oligomers obtained by the enzymatic degradation of aliphatic polyesters are attractive as raw materials for chemical recycling. In this report, molecularly pure cyclic oligomers of butylene adipate, which were obtained by the lipase-catalyzed degradation of poly (butylene adipate), were studied with respect to the polymerization by the enzyme. That is, poly (butylene adipate) was degraded in dry toluene using Candida antarctica lipase to produce cyclic oligomers mainly consisting of cyclic monomer to cyclic tetramer. It was found that cyclic dimer to tetramer were quickly polymerized by lipase to produce high-molecular weight polymers within 30 min. On the other hand, cyclic monomer was slowly polymerized, and it took longer than 120 min for complete conversion. Similar tendencies were observed for PCL degradation and repolymerization.

KW - Cyclic oligomer

KW - Lipase

KW - Poly (butylene adipate)

KW - Polymerization

UR - http://www.scopus.com/inward/record.url?scp=33645651245&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645651245&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33645651245

VL - 54

SP - 1995

BT - Polymer Preprints, Japan

ER -