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Participation of Inclusion Complexes in the Surface Adsorbed Layer in Mixtures of alpha-Cyclodextrin and Cationic-Anionic Hydrogenated and Fluorinated Surfactants: A Surface Tension Proof
Xing, Hang1,2; Zhou, Hong-Tao3; Yu, Hai-Qian2; Gou, Zhi-Ming2; Xiao, Jin-Xin1,2
2011-04-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume56Issue:4Pages:1423-1432
AbstractIt is generally considered that complexes of cyclodextrins (CDs) with ordinary surfactants are not surface-active in water. In this work, aqueous mixtures of alpha-CD, octyltriethylammonium bromide (OTEAB), and sodium perfluorooctanoate (SPFO) were studied by surface tension measurements. Comparison of the experimental results and the simulated ones in the premicellar region showed that the ability of the alpha-CD/OTEAB complexes to participate in the surface-adsorbed layer was dependent on the overall net charge of the surfactants: for the excess-SPFO system, the alpha-CD/OTEAB complexes did show a significant contribution to the surface activity of the mixture, but in the system with excess OTEAB, the alpha-CD/OTEAB complexes were not observed to influence the surface-adsorbed layer. We speculated that the surface-adsorbed layer in the premicellar region might also prefer an electroneutral state, as those cationic-anionic micelles did, and that the alpha-CD/OTEAB complexes were driven to the surface by electrostatic attractions from the excess oppositely charged SPFO. The calculated results for the surface area per molecule adsorbed at the air-water interface also supported our conclusion.
DOI10.1021/je101149h
Indexed BySCI
Language英语
WOS IDWOS:000289403300097
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73786
Collection中国科学院化学研究所
Corresponding AuthorXiao, Jin-Xin
Affiliation1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
2.Beijing FLUOBON Surfactant Inst, Beijing 100080, Peoples R China
3.China Univ Petr Huadong, Coll Petr Engn, Qingdao 266555, Shandong, Peoples R China
Recommended Citation
GB/T 7714
Xing, Hang,Zhou, Hong-Tao,Yu, Hai-Qian,et al. Participation of Inclusion Complexes in the Surface Adsorbed Layer in Mixtures of alpha-Cyclodextrin and Cationic-Anionic Hydrogenated and Fluorinated Surfactants: A Surface Tension Proof[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2011,56(4):1423-1432.
APA Xing, Hang,Zhou, Hong-Tao,Yu, Hai-Qian,Gou, Zhi-Ming,&Xiao, Jin-Xin.(2011).Participation of Inclusion Complexes in the Surface Adsorbed Layer in Mixtures of alpha-Cyclodextrin and Cationic-Anionic Hydrogenated and Fluorinated Surfactants: A Surface Tension Proof.JOURNAL OF CHEMICAL AND ENGINEERING DATA,56(4),1423-1432.
MLA Xing, Hang,et al."Participation of Inclusion Complexes in the Surface Adsorbed Layer in Mixtures of alpha-Cyclodextrin and Cationic-Anionic Hydrogenated and Fluorinated Surfactants: A Surface Tension Proof".JOURNAL OF CHEMICAL AND ENGINEERING DATA 56.4(2011):1423-1432.
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