High-molecular-weight polycarbonates synthesized by enzymatic ROP of a cyclic carbonate as a green process

Yoshio Yamamoto, Sachiko Kaihara, Kazunobu Toshima, Shuichi Matsumura

研究成果: Article

44 引用 (Scopus)

抄録

High-molecular-weight PTeMC and PHMC were prepared by the lipase-catalyzed polymerization of butane-1,4-diol or hexane-1,6-diol and diphenyl carbonate via the formation of a cyclic dimer by a green process. Cyclic carbonate dimers were prepared by the lipase-catalyzed condensation of diphenyl carbonate with butane-1,4-diol or hexane-1,6-diol in dilute toluene solution using an immobilized lipase from Candida antarctica, and was followed by the ring-opening polymerization of the cyclic dimer in bulk with the same lipase to produce PTeMC with Mw =119 000 g·mol-1 and PHMC with M w =399 000 g·mol-1, respectively. Additionally, enzymatic polymerization of cyclic carbonate dimer was analyzed with respect to the Km and Vmax for the lipase.

元の言語English
ページ(範囲)968-978
ページ数11
ジャーナルMacromolecular Bioscience
9
発行部数10
DOI
出版物ステータスPublished - 2009 10 8

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polycarbonate
Carbonates
Lipases
Polycarbonates
Lipase
Molecular Weight
Dimers
Molecular weight
Polymerization
Butane
Hexanes
Hexane
Candida
Ring opening polymerization
Toluene
Condensation
ROP

ASJC Scopus subject areas

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

これを引用

High-molecular-weight polycarbonates synthesized by enzymatic ROP of a cyclic carbonate as a green process. / Yamamoto, Yoshio; Kaihara, Sachiko; Toshima, Kazunobu; Matsumura, Shuichi.

:: Macromolecular Bioscience, 巻 9, 番号 10, 08.10.2009, p. 968-978.

研究成果: Article

Yamamoto, Yoshio ; Kaihara, Sachiko ; Toshima, Kazunobu ; Matsumura, Shuichi. / High-molecular-weight polycarbonates synthesized by enzymatic ROP of a cyclic carbonate as a green process. :: Macromolecular Bioscience. 2009 ; 巻 9, 番号 10. pp. 968-978.
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AB - High-molecular-weight PTeMC and PHMC were prepared by the lipase-catalyzed polymerization of butane-1,4-diol or hexane-1,6-diol and diphenyl carbonate via the formation of a cyclic dimer by a green process. Cyclic carbonate dimers were prepared by the lipase-catalyzed condensation of diphenyl carbonate with butane-1,4-diol or hexane-1,6-diol in dilute toluene solution using an immobilized lipase from Candida antarctica, and was followed by the ring-opening polymerization of the cyclic dimer in bulk with the same lipase to produce PTeMC with Mw =119 000 g·mol-1 and PHMC with M w =399 000 g·mol-1, respectively. Additionally, enzymatic polymerization of cyclic carbonate dimer was analyzed with respect to the Km and Vmax for the lipase.

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