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
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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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