ICCAS OpenIR
Aggregation properties of zwitterionic surfactants with different ionic headgroups, hydrophobic chain length and inter-charge spacers
Wang, Yingxiong; Huang, Xu; Li, Yajuan; Wang, Jinben; Wang, Yilin
2009-02-05
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume333Issue:1-3Pages:108-114
AbstractThree series of zwitterionic surfactants with different ionic headgroups, various hydrophobic chain length, and flexible or rigid inter-charge spacers have been synthesized and their aggregation behaviors in aqueous solution have been studied. Series I and III represent [CnH2n+1(CH3)(2)N+(CH2)(G)N+ (CH3)(2)CH2CH2CH2SO3-]Br- (C(n)C(6)Tri, n = 12, 14, and 16) and CnH2n+1(CH3)(2)N+CH2CH2CH2SO3- (n = 12, 14, and 16), respectively. Series II are [C14H29(CH3)(2)N+C5N+(CH3)(2)CH2CH2CH2SO3-]Br- (C(14)C(5)Tri, C-5 =-(CH2)(2)-, -(CH2)(6)-, -(CH2)(8)-. -(CH2)(10)-, p-xylyl). where C-s stands for the inter-charge spacer connecting two quaternary ammonium groups. The critical micelle concentrations (CMC) of the surfactants with two cationic ammonium groups and one anionic sulfonate group (Series I and 11) are much larger than those of the corresponding surfactants with one cationic ammonium group and one anionic suffonate group (Series 111). These surfactants exhibit obviously different aggregate morphologies. For Series III, only micelles are observed. For Series I and 11, if the surfactants have short or rigid inter-charge spacer (C(14)C(2)Tri and C(14)C(px)Tri), the aggregates also appear as micelles and have more exothermic micellization enthalpy change. However, even for Series I and 11, if the surfactants have longer and flexible inter-charge spacer and longer hydrocarbon chains (C(14)C(6)Tri, C(16)C(6)Tri, C(14)C(8)Tri and C(14)C(10)Tri), vesicles are observed due to the reduced hydrophilic moiety size and the strong hydrophobic interaction, whereas vesicles cannot be formed if the surfactants have longer and more flexible inter-charge spacer but without enough longer hydrocarbon chain (C(12)C(6)Tri). (C) 2008 Elsevier B.V. All rights reserved.
KeywordZwitterionic Surfactants Ionic Headgroup Chain Length Inter-charge Spacer Vesicle
DOI10.1016/j.colsurfa.2008.09.030
Indexed BySCI
Language英语
WOS IDWOS:000262605600014
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68002
Collection中国科学院化学研究所
Corresponding AuthorWang, Yilin
AffiliationChinese Acad Sci, Key Lab Colloid & Interface Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yingxiong,Huang, Xu,Li, Yajuan,et al. Aggregation properties of zwitterionic surfactants with different ionic headgroups, hydrophobic chain length and inter-charge spacers[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2009,333(1-3):108-114.
APA Wang, Yingxiong,Huang, Xu,Li, Yajuan,Wang, Jinben,&Wang, Yilin.(2009).Aggregation properties of zwitterionic surfactants with different ionic headgroups, hydrophobic chain length and inter-charge spacers.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,333(1-3),108-114.
MLA Wang, Yingxiong,et al."Aggregation properties of zwitterionic surfactants with different ionic headgroups, hydrophobic chain length and inter-charge spacers".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 333.1-3(2009):108-114.
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