中文摘要：

以壳聚糖接枝β-环糊精（CS-β-CD）为主体分子,二茂铁（FcH）改性的聚环氧乙烷-聚环氧丙烷-聚环氧乙烷（F127-Fc）为客体分子,2％乙酸为溶剂,制备了F127-Fc/CS-β-CD水凝胶,其结构经1H NMR表征.研究了F127-Fc/CS-β-CD对温度和pH的双重响应性能.结果表明,β-CD-Fc包合物的存在为体系里构建了一种新的交联点,凝胶有氧化剂响应性,同时凝胶区域变宽.

英文摘要：

A multi-responsive hydrogel（F127-Fc/CS-β-CD） was constructed via host-guest interaction using chitosan graftedβ-cyclodextrins （CS-β-CD） as the host molecule and poly（ethylene oxide） poly （propylene oxide） poly（ethylene oxide） modified with ferrocene as the guest molecule in 2% acetic acid.The structures were characterizd by 1H NMR.Response performance of F127-Fc/CS-β-CD were investigated.The results showed that F127-Fc/CS-β-CD system shows gel-sol phase transition in response to temperature and pH double-responsive.Furthermore,the Fc-β-CD inclusions act as new cross-linking,leading to the redox-sensitive property and broadening of gelation range.