Phase separation in the mixture of schizophyllan and poly(ethylene oxide) in aqueous solution driven by a specific interaction between the glucose side chain and poly(ethylene oxide)

Kazuo Sakurai, Seiji Shinkai

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)

抄録

We found that the mixture of schizophyllan and poly(ethylene oxide) in aqueous solution underwent phase separation at around 3-4°C, and this temperature was independent of both polymer concentration and the difference in poly(ethylene oxide) molecular weight (M(w) 6000 and 70,000). The phase- separation took place at the same temperature at which the optical rotation changed. Since the optical rotation change is ascribed to the difference in the nature of hydrogen bonding between the schizophyllan side chain and water, the phase separation is also considered to be due to an interaction between poly(ethylene oxide) and schizophyllan. The phase-separation temperature increased on changing H2O to D2O in accordance with a change in the optical rotation, confirming the specific interaction essential for the phase separation. (C) 2000 Elsevier Science Ltd.

本文言語英語
ページ(範囲)136-140
ページ数5
ジャーナルCarbohydrate Research
324
2
DOI
出版ステータス出版済み - 2 11 2000
外部発表はい

All Science Journal Classification (ASJC) codes

  • 分析化学
  • 生化学
  • 有機化学

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