光聚合α-CD组装超分子结构水凝胶的合成与表征  

Synthesis and Characterization of Photopolymerized Supramolecular- structured Hydrogels of α-CD Assemblies

作　　者：赵三平[1] 冯增国[1] 朴东旭[2] 

机构地区：[1]北京理工大学材料与工程学院,北京100081 [2]中国康复研究中心,北京100077

出　　处：《高等学校化学学报》2003年第1期186-188,共3页Chemical Journal of Chinese Universities

基　　金：国家"8 6 3"计划 (批准号 :2 0 0 1AA 2 16 0 77)资助

摘　　要：In this paper, the polypseudorotaxanes were synthesized from α-cyclodextrins(α-CDs) threaded onto PCL-PEG-PCL macromers terminated with acrylate groups. Then, supramolecular-structured hydrogels were prepared from the polyseudorotaxanes in a mixed solvent of H 2O and DMSO via in-situ polymerization photoinitiated under UV. The structure and properties of the supramolecular-structured hydrogels were characterized by FTIR, TGA and WAXD. The results showed that α-CDs were threaded and immobilized on the network of the hydrogel by rapid photopolymerization, and the feed ratio of α-CDs affected the structure of hydrogels, water absorption, the distribution and states of water, etc..In this paper, the polypseudorotaxanes were synthesized from α-cyclodextrins(α-CDs) threaded onto PCL-PEG-PCL macromers terminated with acrylate groups. Then, supramolecular-structured hydrogels were prepared from the polyseudorotaxanes in a mixed solvent of H 2O and DMSO via in-situ polymerization photoinitiated under UV. The structure and properties of the supramolecular-structured hydrogels were characterized by FTIR, TGA and WAXD. The results showed that α-CDs were threaded and immobilized on the network of the hydrogel by rapid photopolymerization, and the feed ratio of α-CDs affected the structure of hydrogels, water absorption, the distribution and states of water, etc..

关 键 词：光聚合 α-CD 合成 表征 大分子单体 多聚准轮烷 原位聚合 超分子结构水凝胶 Α-环糊精 交联 结构 端基丙烯酸酯 

分 类 号：O631.1[理学—高分子化学] O641.3[理学—化学]