支链烷基苯磺酸钠聚集性质的实验与理论研究  

The Study of Aggregation Properties of Sodium Alkyl Benzenensulfonate

作　　者：史福强[1] 张路[1] 赵濉[1] 安静仪[1] 俞稼镛[1] 

机构地区：[1]中国科学院理化技术研究所,北京100101

出　　处：《感光科学与光化学》2005年第3期175-182,共8页Photographic Science and Photochemistry

基　　金：国家重大基础项目规划资助项目(G19990225).

摘　　要：以芘为探针、二苯酮为猝灭剂,用稳态荧光法测定了合成的4种链长分别为10、12、14、16碳,苯环均在β位取代的对烷基苯磺酸钠的临界胶团浓度、胶团聚集数和微极性.研究了链长对支链烷基苯磺酸钠聚集性质的影响.分析了支链烷基苯磺酸钠疏水、亲水基团对聚集性质的影响.用量子化学从头算Hartree Fock方法取6 31G 基组计算了支链烷基苯磺酸根离子气相中的电荷分布.Critical micelle concentration (CMC), aggregation numbers and micropolarity of four sodium branched-alkyl benzene sulfonates were determined by steady-state fluorescence probe method in which pyrene was used as fluorescence probe and benzophenone was used as quencher. The comparison was performed between the CMC results obtained by steady-state fluorescence probe method and that obtained by surface tension method. The Mulliken charge distributions were computed at HF level with 6-31G~* basis set.

关 键 词：稳态荧光 临界胶团浓度 胶团聚集数 

分 类 号：O647.2[理学—物理化学]