中文摘要：

通过控制反应条件，由β-环糊精制备了不同取代度的羧酸化β-环糊精（CM-β-CD），用核磁氢谱表征了其结构及羧酸化取代度．并以此为聚阴离子、光敏性聚合物一重氮树脂（DR）为聚阳离子．基于离子间相互作用，制备了层一层自组装超薄膜，研究了羧酸化取代度、溶剂离子强度、浓度以及pH值对组装膜的影响．实验结果表明：每一自组装循环中，聚离子的沉积量是相等的，并随着羧酸化取代度、溶剂离子强度的增加而增加；但CM—β—CD溶液的浓度和pH值对组装膜结构产生的影响很小．在UV光照下，利用重氮盐的光分解使层一层之间形成共价交联，有效提高了膜的稳定性。

英文摘要：

Carboxymethyl-β-cyclodextrins （CM-β-CDs） having different carboxymethylated degrees were synthesized. Their structures and carboxymethylated degrees were characterized by 1H-NMR. A self-assembled multilayer thin-film was fabricated with CM-β-CD as an anion and photosensitive diazoresin （DR） as a polycation based on ionic interaction. The quantity of deposition of self-assembled CM-β-CD/DR films increased with increasing the degree of carboxymethylation of CM-β-CD and the ionic strength of solvent from which CM-β-CD deposited. However, the concentration and pH value of the CM-β-CD aqueous solution had little effect on the self-assembled multilayer films. Under UV irradiation, following the decomposition of diazonium group between the adjacent interfaces of the multilayers, the ionic bonds of the self-assembly film converted to covalent bonds, which improves the stablity of the film effectively.