高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (6): 884.

• 研究简报 • 上一篇    下一篇

β-环糊精聚合物膜拆分氨基酸对映体

龙远德, 黄天宝   

  1. 中国科学院成都有机化学研究所, 成都 610041
  • 收稿日期:1998-12-14 出版日期:1999-06-24 发布日期:1999-06-24
  • 通讯作者: 黄天宝
  • 作者简介:龙远德,男,32岁,硕士,副研究员.
  • 基金资助:

    国家自然科学基金(批准号:29575210);四川省应用基础基金

Enantioselective Permeation of Amino Acids Through β-Cyclodextrin Polymer Membranes

LONG Yuan-De, HUANG Tian-Bao   

  1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041
  • Received:1998-12-14 Online:1999-06-24 Published:1999-06-24

摘要: 环糊精(CD)具有亲水的外围及憎水的内腔,在溶液中可与许多有机物形成包合物,并对其形状、体积与极性呈现选择性[1].通过化学修饰引入新的识别基团,可使CD具有更高的结合选择性,即多重分子识别[2].

关键词: &beta, -环糊精, &beta, -环糊精聚合物膜, 膜分离, 对映体拆分, 氨基酸

Abstract: The β-cyclodextrin polymer membranes based on poly(vinyl alcohol) for enantioselective permeation of amino acids were described. The cyclodextrin membrane modified with acetic anhydride had higher permeation enantioselectivity of DL-amino acids than the unmodified membrane. The enhanced abilities were explained as a result of the additional steric hindrance effect besides inclusion. The maximum of enantiomeric excess for DLtryptophan was 25.4% with the permeation rate of D-tryptophan being up to 1.48×10-5g·mm-2h-1.

Key words: β-Cyclodextrin, β-Cyclodextrin polymer membrane, Membrane separation, Enantiomeric resolution, Amino acids

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