ICCAS OpenIR
Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems
Jiang, Lingxiang2; Deng, Manli1; Wang, Yilin1; Liang, Dehai2; Yan, Yun2; Huang, Jianbin2
2009-05-28
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume113Issue:21Pages:7498-7504
AbstractControllable aggregate transitions are achieved in this work by adding due amounts of beta-cyclodextrin (beta-CD) to mixed cationic/anionic surfactant aqueous solutions. In contrast to its "aggrecrate breaking" effect in single surfactant systems, aggregate growth is observed in nonstoichiometrical mixed cationic/anionic surfactant systems upon addition of beta-CD. The aggregate growth typically undergoes a micellar elongation and a following micelle-to-vesicle transition, which in turn greatly influences the viscosity and absorbance of the solutions. A possible mechanism of this beta-CD-induced aggregate growth is proposed. In mixed cationic/anionic surfactant systems, the surfactants strongly tend to reach electroneutral equilibrium in aggregates. In the present case, added beta-CD is found to greatly facilitate the equilibrium by transferring the "major" component (whose molar fraction > 0.5) of a cationic/anionic surfactant mixture from the aggregates to beta-CD cavities. Consequently, the surfactants in the aggregates approach electroneutral mixing, in favor of low-curved aggregates such as vesicles. This work shows that beta-CD provides an additional degree of freedom to control microstructures and macroproperties for the whole class of mixed cationic/anionic surfactant systems.
DOI10.1021/jp811455f
Indexed BySCI
Language英语
WOS IDWOS:000266296700013
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:79[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68544
Collection中国科学院化学研究所
Corresponding AuthorWang, Yilin
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
2.Peking Univ, BNLMS, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Lingxiang,Deng, Manli,Wang, Yilin,et al. Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2009,113(21):7498-7504.
APA Jiang, Lingxiang,Deng, Manli,Wang, Yilin,Liang, Dehai,Yan, Yun,&Huang, Jianbin.(2009).Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems.JOURNAL OF PHYSICAL CHEMISTRY B,113(21),7498-7504.
MLA Jiang, Lingxiang,et al."Special Effect of beta-Cyclodextrin on the Aggregation Behavior of Mixed Cationic/Anionic Surfactant Systems".JOURNAL OF PHYSICAL CHEMISTRY B 113.21(2009):7498-7504.
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