Triton X-100在乙二醇中的胶体性质  

The Aggragation of Triton X-100 in Ethylene Glycol

作　　者：叶锡麟[1] 李玉书[1] 胡秀杰[1] 

机构地区：[1]中国科学院感光化学研究所,北京100101

出　　处：《物理化学学报》1994年第5期456-460,共5页Acta Physico-Chimica Sinica

基　　金：中国科学院课题!"出国人员择优资助基金"

摘　　要：The CMC and the aggregation number of Triton X-100 in mixtures of ethylene glycol and water have been measured by surface tension and static flucorescence decay methods. The discontinuity of the surface tension curve indicates that Triton X-100 forms micelles in ethylene glycol, though its CMC (0.05mol·L-1, 20℃) is greater than that in water. From fluorescence decay the aggregation number of Trion X-100 in ethylene glycol is 25 (30℃) in comparison with 97 in water. The aggegation number is reduced by adding glycol into an aqueous solution of Trion X-100. These could be interpreted in terms of a more favourable interaction between molecules of glycol and Trion X-100 than between water and Trion X-100.The CMC and the aggregation number of Triton X-100 in mixtures of ethylene glycol and water have been measured by surface tension and static flucorescence decay methods. The discontinuity of the surface tension curve indicates that Triton X-100 forms micelles in ethylene glycol, though its CMC (0.05mol·L-1, 20℃) is greater than that in water. From fluorescence decay the aggregation number of Trion X-100 in ethylene glycol is 25 (30℃) in comparison with 97 in water. The aggegation number is reduced by adding glycol into an aqueous solution of Trion X-100. These could be interpreted in terms of a more favourable interaction between molecules of glycol and Trion X-100 than between water and Trion X-100.

关 键 词：表面活性剂 非离子 乙二醇 胶体 

分 类 号：TQ423.2[化学工程]