Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (08): 1013-1020.DOI: 10.6023/A1109092 Previous Articles     Next Articles

Full Papers

基于环糊精二聚体与金刚烷修饰的温敏性聚合物的主客体识别构筑超分子水凝胶

李姝静a, 张小军b, 梁海燕a, 王心蕊a   

  1. a 北京工商大学理学院化学系 北京 100048;
    b 中国农业大学理学院应用化学系 北京 100193
  • 投稿日期:2011-09-09 修回日期:2012-01-05 发布日期:2012-01-05
  • 通讯作者: 李姝静, 张小军
  • 基金资助:

    北京市教育委员会科技发展面上项目(No. KM201210011006).

Supramolecular Hydrogels Obtained by Host-Guest Interactions of Cyclodextrin Dimers with Adamantyl-Containing LCST Copolymers

Li Shujinga, Zhang Xiaojunb, Liang Haiyana, Wang Xinruia   

  1. a Department of Chemistry, School of Science, Beijing Technology and Business University, Beijing 100048;
    b Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193
  • Received:2011-09-09 Revised:2012-01-05 Published:2012-01-05
  • Supported by:

    Supported by Scientific Research Common Program of Beijing Municipal Commission of Education (No. KM201210011006).

Supramolecular hydrogels were constructed by the formation of inclusion complexes between trans-Stilbene β-CD Dimer and adamantyl modified poly(N-isopropylacrylamide) (Pnipam-Ad). The results of 2D NMR measurement indicated that the host-guest interaction between trans-Stilbene β-CD Dimer and Pnipam-Ad was carried out through the formation of inclusion complexes between β-CD cavity and the hydrophobe Ad. The interaction between trans-Stilbene β-CD Dimer and Pnipam-Ad was depended on the concentration of trans-Stilbene β-CD Dimer, Pnipam-Ad and the photoisomerization of trans-Stilbene β-CD Dimer. In addition, the lower critical solution temperature (LCST) of the supramolecular networks consisting of trans-Stilbene β-CD Dimer and Pnipam-Ad are significantly lower than those of pure Pnipam.

Key words: cyclodextrin dimer, host-guest interaction, thermo-sensitivity, supramolecular gel