H-1 NMR study on pre-micellization of quaternary ammonium gemini surfactants
Jiang, Yan1,3; Chen, Hong2; Cui, Xiao-Hong1,3; Mao, Shi-Zhen1; Liu, Mai-Li1; Luo, Ping-Ya2; Du, You-Ru1
刊名LANGMUIR
2008-04-01
卷号24期号:7页码:3118-3121
英文摘要Two quaternary ammonium Gemini surfactant series, 12-s-12; ([Cl2H25N+(CH3)(2)](2)(CH2)(2)center dot Br-) and 14-s-14 ([C14H29N+(CH3)(2)](2)(CH2)(5)center dot 2Br(-)) where s = 2,3 and 4, have been studied by the use of H-1 NMR in aqueous solution concentrations below their critical micelle concentrations (CMC) at 25 degrees C. The appearance of a second set of peaks for the 14-s-14 series and the changes in chemical shifts, line widths, and line shapes of the 12-s-12 series with increasing concentration below the CMC are interpreted as evidence for the formation of premicelle aggregates (oligomers) that appear at approximately one-half their CMC values. Self-diffusion coefficients (D) and transverse relaxation times (T-2) have also been detected and support the results obtained by 1H NMR.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]PREMICELLAR AGGREGATION ; BROMIDE) SURFACTANTS ; FLUORESCENCE ; BEHAVIOR
收录类别SCI
语种英语
WOS记录号WOS:000254480500025
公开日期2015-10-13
内容类型期刊论文
源URL[http://ir.wipm.ac.cn/handle/112942/8071]  
专题武汉物理与数学研究所_2011年以前论文发表(包括2011年)
作者单位1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
2.SW Petroleum Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China
3.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Yan,Chen, Hong,Cui, Xiao-Hong,et al. H-1 NMR study on pre-micellization of quaternary ammonium gemini surfactants[J]. LANGMUIR,2008,24(7):3118-3121.
APA Jiang, Yan.,Chen, Hong.,Cui, Xiao-Hong.,Mao, Shi-Zhen.,Liu, Mai-Li.,...&Du, You-Ru.(2008).H-1 NMR study on pre-micellization of quaternary ammonium gemini surfactants.LANGMUIR,24(7),3118-3121.
MLA Jiang, Yan,et al."H-1 NMR study on pre-micellization of quaternary ammonium gemini surfactants".LANGMUIR 24.7(2008):3118-3121.
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