Lipase-catalyzed polymerization of diethyl carbonate and diol to aliphatic poly(alkylene carbonate)

Shuichi Matsumura, Satoshi Harai, Kazunobu Toshima

研究成果: Article

47 引用 (Scopus)

抄録

Diethyl carbonate (DEC) and diols, such as 1,3-propanediol and 1,4-butanediol, were polymerized by a lipase at a temperature between 40 and 80°C to yield the corresponding aliphatic polycarbonates in a successive two-step polymerization. Bulk polymerization, especially at a temperature between 70 and 75°C, and preferably using immobilized lipase from Candida antarctica (Novozym 435) gave polycarbonates with weight-average molecular weights of 40000. An excess amount of DEC, preferably a 3-fold molar ratio to the diols, was needed for the polycondensation reaction of DEC and the diols. This was due to the partial degradation of both DEC and the carbonate moieties of the polymer chain by the lipase.

元の言語English
ページ(範囲)1632-1639
ページ数8
ジャーナルMacromolecular Chemistry and Physics
201
発行部数14
出版物ステータスPublished - 2000 9 28

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polycarbonate
Carbonates
Lipases
Lipase
carbonates
polymerization
Polymerization
polycarbonates
Polycarbonates
Candida
Polycondensation
Antarctic regions
Polymers
Molecular weight
molecular weight
Degradation
Temperature
ethyl carbonate
degradation
temperature

ASJC Scopus subject areas

  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Polymers and Plastics

これを引用

Lipase-catalyzed polymerization of diethyl carbonate and diol to aliphatic poly(alkylene carbonate). / Matsumura, Shuichi; Harai, Satoshi; Toshima, Kazunobu.

:: Macromolecular Chemistry and Physics, 巻 201, 番号 14, 28.09.2000, p. 1632-1639.

研究成果: Article

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