Host-guest Interaction between Water-soluble β-Cyclodextrin Polymer and Hydrophobically Modified Polyacryla-mide

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (19): 1841-1846. Previous Articles Next Articles

Original Articles

水溶性β-环糊精聚合物和疏水改性聚丙烯酰胺的主客体相互作用

李姝静¹，吴飞鹏*^,1，李妙贞¹，王尔鑑¹，毛诗珍²，杜有如²

(¹中国科学院理化技术研究所北京 100101)
(²中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室武汉 430071)

投稿日期:2005-01-10 修回日期:2005-07-04 发布日期:2010-12-10
通讯作者: 吴飞鹏

Host-guest Interaction between Water-soluble β-Cyclodextrin Polymer and Hydrophobically Modified Polyacryla-mide

LI Shu-Jing¹, WU Fei-Peng*^,1, LI Miao-Zhen¹, WANG Er-Jian¹, MAO Shi-Zhen², DU You-Ru²

(¹ Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101)
(²State Key Laboratory of Magnetic and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences, Wuhan 430071)

Received:2005-01-10 Revised:2005-07-04 Published:2010-12-10
Contact: WU Fei-Peng

Abstract

A supramolecular recognizing system was constructed based on the water-soluble β-cyclodextrin polymer (β-CDE) as host and hydrophobically modified polyacrylamide P(AM/POEA) as guest. Such guest polymer is a water soluble polymer containing a small amount of hydrophobe (x_POEA＜0.01). The results of NMR measurement indicated that the host-guest interaction between β-CDE and P(AM/POEA) was carried out through the formation of inclusion complexes between cyclodextrin cavity and the hydrophobe POEA. High viscosity enhancements were observed when β-CDE was added to P(AM/POEA) solutions as a result of the polymer inclusion association, which can be controlled by varying the polymer concentration and hydrophobe content. The influ-ences of salt concentration and temperature on the viscosity of mixture solution were also studied. The TEM images dem-onstrated that the host-guest interaction between β-CDE and P(AM/POEA) led to the formation of multi-polymeric aggregate with solid sphere structure.

Key words: inclusion complex, host-guest interaction, β-cyclodextrin polymer, hydrophobically modified polyacryla-mide, multimolecular aggregate

Cite this article

LI Shu-Jing, WU Fei-Peng*^,1, LI Miao-Zhen, WANG Er-Jian, MAO Shi-Zhen², DU You-Ru². Host-guest Interaction between Water-soluble β-Cyclodextrin Polymer and Hydrophobically Modified Polyacryla-mide[J]. Acta Chimica Sinica, 2005, 63(19): 1841-1846.

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水溶性β-环糊精聚合物和疏水改性聚丙烯酰胺的主客体相互作用

Host-guest Interaction between Water-soluble β-Cyclodextrin Polymer and Hydrophobically Modified Polyacryla-mide

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