Enzyme-catalyzed polymerization of L-aspartate

Shuichi Matsumura, Yasuhiro Tsushima, Nobuyuki Otozawa, Saeko Murakami, Kazunobu Toshima, Graham Swift

Research output: Contribution to journalArticle

23 Citations (Scopus)


Diethyl L-aspartate was polymerized by proteinase at a temperature between 4 and 50°C to yield poly(ethyl α,β-L-aspartate). Bulk polymerization of diethyl L-aspartate, especially at temperatures between 40 and 50°C, and preferably using alkalophilic proteinase with the addition of a small amount of water gave poly(ethyl L-aspartate) as a white powder with a molecular weight of up to 3600 and having about 88% α-linkages.

Original languageEnglish
Pages (from-to)7-11
Number of pages5
JournalMacromolecular Rapid Communications
Issue number1
Publication statusPublished - 1999


ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Matsumura, S., Tsushima, Y., Otozawa, N., Murakami, S., Toshima, K., & Swift, G. (1999). Enzyme-catalyzed polymerization of L-aspartate. Macromolecular Rapid Communications, 20(1), 7-11.