Preparation of high-molecular weight polyesters by the enzyme-catalyzed polymerization

Satoko Sugihara, Kazunobu Toshima, Shuichi Matsumura

Research output: Contribution to conferencePaperpeer-review


High-molecular weight polyesters were produced via the ring-opening polymerization of cyclic oligomers which were produced by the condensation of diols and dicarboxylates by lipase in a diluted toluene solution. Thus, dimethyl fumarate, maleate and succinate with 1,6-hexanediol were reacted forming cyclic oligomers in diluted toluene solution by Candida antarctica lipase. The cyclic oligomer was readily polymerized by the same lipase in more concentrated solution to produce a high-molecular weight polyester. On the other hand, molecular weights of polyesters produced by the direct polycondensation of diols and dicarboxylates decreased considerably when compared to those produced by the ring-opening polymerization.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27


Other54th SPSJ Annual Meeting 2005


  • Cyclic oligomer
  • Lipase
  • Polymerization
  • Unsaturated polyester

ASJC Scopus subject areas

  • Engineering(all)


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