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功能高分子学报:2012,25(4):-
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基于β-环糊精和二茂铁主客体作用的超分子聚合物的制备及其凝胶化
(1.中国科学院大学化学与化学工程学院,北京 100049;2.中国科学院大学化学与化学工程学院,北京 100050;3.中国科学院大学化学与化学工程学院,北京 100051)
Preparation and Gelation of Supramolecular Copolymer Based on the Host Guest Interaction between Cyclodextrin and Ferrocene
(1.College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;2.College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100050, China;3.College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100051, China)
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中文摘要: 以β-环糊精修饰的壳聚糖(CDCS)和二茂铁修饰的聚乙二醇(FcPEG)为构筑单元,以β-环糊精和二茂铁的主客体相互作用为驱动 ,构筑了水溶性的超分子聚合物CDCS-FcPEG。在此基础上,加入α-环糊精(α-CD),通过其对聚乙二醇的穿环络合诱导结晶作用,制备 了壳聚糖基水凝胶。使用核磁(1H-NMR)、紫外 可见光谱法(UV-Vis)、X射线衍射分析(XRD)和循环伏安法(CV)等手段进行了验证。 结果表明:超分子聚合物CDCS-FcPEG与共价键连接的传统聚合物一样可以和α-CD形成凝胶。
Abstract:Driven by the host guest interaction between β-cyclodextrin and ferrocene in aqueous solution, a water soluble supramolecular copolymer CDCS-FcPEG was obtained based on β-cyclodextrin modified chitosan (CDCS) and ferrocene modified polyethylene glycol (FcPEG) as building blocks. The CDCS FcPEG further constructed into hydrogel with α cyclodextrin (α -CD), owing to the formation of crystalline inclusion complex of α CD and PEG. These processes were monitored by 1H NMR, UV Vis spectroscopy (UV-Vis), X-ray diffraction (XRD) and cyclic voltammetry (CV). Results show that CDCS FcPEG can form hydrogel with α-CD like traditional copolymers linked by covalent bonds.
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基金项目:中国科学院研究生院院长基金资助项目
引用本文:
王亮,郭成功,王彩旗.基于β-环糊精和二茂铁主客体作用的超分子聚合物的制备及其凝胶化[J].功能高分子学报,2012,25(4):.
WANG Liang,GUO Cheng gong,WANG Cai qi.Preparation and Gelation of Supramolecular Copolymer Based on the Host Guest Interaction between Cyclodextrin and Ferrocene[J].Journal of Functional Polymers,2012,25(4):.