Selective Adsorption of Dyes and Surfactants with Cyclodextrin Containing Polymers

（1）在水溶液中测定了环糊精（CD）聚合物对酸性染料的吸附等温线。染料与水溶性高分子的吸附亲和力随烷基链长的增加而增加。水不溶性聚合物对染料的吸附亲和力随疏水组分比例的增加而增加。讨论了吸附亲和力与OSQR性能之间的关系，以确定不同CD聚合物和酸性染料的优先吸附行为。（2）在水溶液中测定了非离子表面活性剂在含环糊精高分子吸附剂上的吸附等温线。随着吸附物中氧杂环单元长度的增加，非离子表面活性剂的吸附亲和力降低。非离子表面活性剂对十二烷基苯磺酸钠的吸附亲和力随非离子表面活性剂与十二烷基苯磺酸钠比例的增加而降低。（3）采用分光光度法研究了不同温度下甲基橙子及其同系物与环糊精在水溶液中形成包合物的行为。发现α-和β-CD与染料分子形成1：1的复合物，而γ-CD与染料分子形成1：2的复合物。随着染料分子中烷基链长度的增加，结合常数增加。计算了络合物形成过程的熵变和焓变，讨论了熵对络合物形成过程的贡献。（4）在不同温度下，通过荧光光谱法研究了烷基磺酸盐及其相关化合物与环糊精及双环糊精在水溶液中形成包合物的过程。双CD中烷基链长的增加降低了结合常数。烷基磺酸盐对环糊精空腔的适合度是影响结合常数的重要因素。

(1)The adsorption isotherms of acid dyes onto polymers containing cyclodextrin (CD) were measured in aqueous solution. The adsorption affinities of dyes with water-soluble polymer increased with increases in the length of alkly chain units. The adsorption affinities of dyes with water-insoluble polymer increased with increases in the ratio of hydrophobic components. The relationship between adsorption affinities and OSQR properties were also discussed in order to determine preferred adsorption behaviors of different CD polymers and acid dyes.(2)The adsorption isotherms of nonionic surfactants onto polymer adsorbent containing CDs were measured in aqueous solution. The adsorption affinities for nonionic surfactants decrease with increases in the length of oxyethylene units in the adsorbates. The adsorption affinities for sodium dodecylbenzene sulfonate (NaDBS) in nonionic surfactants decreased with increases in the ratio of nonionic surfactant to NaDBS.(3)The inclusion complex formation of methyl orange and its homologs with CDs in aqueous solution was investigated by spectrophotometric measurements at different temperatures. It was found that α-and β-CDs formed 1 : 1 complexes, but γ-CD formed a 1 : 2 complex with dye molecules. The increases of the alkyl chain length in the dye molecules increased the binding constant. The entropy and enthalpy changes were calculated for the complex formation and contribution of entropy to the process was discussed.(4)The inclusion complex formation of alkyl slufonate and its related compounds with CDs and double CDs in aqueous solution was investigated by fluorescence spectrum measurements at different temperatures. The increases of the alkyl chain length in the double CDs decreased the binding constant. The fitness of the alkyl sulfonate to the cavity of CD was suggested to affect the binding constant.