侧链携带金刚烷的聚(N-异丙基丙烯酰胺)与环糊精二聚体构筑可控超分子体系  

Supramolecular System Obtained by Adamantyl-Containing Pnipam Copolymers with Cyclodextrin Dimers

作　　者：李姝静[1] 梁海燕[1] 王心蕊[1] 

机构地区：[1]北京工商大学理学院化学系,北京100048

出　　处：《影像科学与光化学》2012年第3期200-209,共10页Imaging Science and Photochemistry

基　　金：北京市教育委员会科技发展面上项目(KM201210011006);北京市属高等学校科学技术与研究生教育创新工程建设项目

摘　　要：合成了侧链携带金刚烷的温敏性聚合物(Pnipam-Ad)及环糊精二聚体(trans-Azoβ-CD Dimer),利用Pnipam-Ad侧链的金刚烷与trans-Azoβ-CD Dimer的主客体识别作用构筑了超分子体系.以二维核磁共振谱(2DNMR)、粘度法等手段对Pnipam-Ad与trans-Azoβ-CD Dimer之间的主客体包结作用进行了研究,两者之间的缔合受Pnipam-Ad和trans-Azoβ-CD Dimer浓度及trans-Azoβ-CD Di-mer光异构的影响.此外,trans-Azoβ-CD Dimer对Pnipam-Ad聚合物链的物理交联作用使两者混合溶液的最低临界溶解温度(LCST)低于纯P(NIPAM)的LCST.The adamantyl-containing polymer（Pnipam-Ad） and cyclodextrin dimer（trans-Azo β-CD Dimer） were synthesized.A supramolecular system was constructed by the formation of inclusion complex between Pnipam-Ad and trans-Azo β-CD Dimer.The inclusion behavior was investigated by 2D NMR and viscosity measurement.The interaction between Pnipam-Ad and trans-Azo β-CD Dimer was depended on the concentration of Pnipam-Ad,trans-Azo β-CD Dimer and the photoisomerization of trans-Azo β-CD Dimer.In addition,the lower critical solution temperature（LCST） of the supramolecular networks consisting trans-Azo β-CD Dimer and Pnipam-Ad are significantly lower than those of pure P（NIPAM）.

关 键 词：环糊精二聚体 主客体相互作用 温度敏感性 超分子 

分 类 号：O631.3[理学—高分子化学]