中文摘要：

利用丙烯基溴改性的β-环糊精（β-CD）改性物（allyl-β-CD）与丙烯酸在引发剂偶氮二异丁腈作用下发生聚合反应,引入活性基团羧基后与钛酸丁酯反应,将二氧化钛接枝于β-CD聚合物（β-CDP）链上,得到β-CDP/TiO2有机-无机杂化电流变材料.通过FT-IR表征表明材料中有机-无机两相以化学键的方式键连,XRD和SEM表明无机相以无定形的形式存在,有机-无机两相高度相容.考察其电流变性能发现：β-CDP/TiO2杂化材料的屈服应力、剪切应力等电流变性能明显优于β-CDP和β-CD原料.此外,研究发现β-CDP/TiO2杂化材料的电流变效应与钛酸丁酯的加入量有很大关系,其中钛酸丁酯的加入量为40%时材料的电流变效果最佳.

英文摘要：

The β-CDP was obtained by the polymerization of allyl-β-CD and AA with azodiisobutyronitriIe （AIBN） as initiator, and β-CDP/TiO2 hybrid materials were subsequently prepared by the reaction between β-CDP and butyl titanate. The results of FT-IR,SEM and XRD show that the chemical bond is formed between the TiO2 phases and the polymer matrix in the hybrid, and the organic and inorganic components were well dispersed homogeneously with each other. The results indicated that the electro-rheological （ER） properties of β-CDP/TiO2 was much better than that of pure β-CD and β-CDP. In addition, the effect of ER is best when 40% butyl titanate was introduced into β-CDP.