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

Hiroki Ebata, Kazunobu Toshima, Shuichi Matsumura

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)798-803
Number of pages6
JournalMacromolecular Bioscience
Issue number6
Publication statusPublished - 2007 Jun 7


  • Biodegradability
  • Crosslinking
  • Curing
  • Lipase
  • Poly-condensation
  • Polyricinoleate

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry


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