Hydrophobic terminal group of surfactant initiating micellization as revealed by H-1 NMR spectroscopy

doi:10.1016/j.cclet.2017.04.013

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	Hydrophobic terminal group of surfactant initiating micellization as revealed by H-1 NMR spectroscopy
	Chen, Xiao-Ying 1,2; Mao, Shi-Zhen 2; Liu, Mai-Li 2; Du, You-Ru 2; Yu, Gang-Jin 1,2
刊名	CHINESE CHEMICAL LETTERS
	2017-07-01
卷号	28 期号:7 页码:1413-1416
关键词	H-1 Nmr Surfactants Critical Aggregation Concentration Hydrophobic Terminal Group Micellization
DOI	10.1016/j.cclet.2017.04.013
文献子类	Article
英文摘要	The critical aggregation concentration (CAC) of four with three kinds of conventional surfactants, namely, two cationic surfactants [hexadecyltrimethyl ammonium bromide (CTAB) and tetradecyltrimethyl ammonium bromide (TTAB)], one anionic surfactant [sodium dodecyl sulfate (SDS)], and a nonionic surfactant [Triton X-100 (TX-100)], were determined by variation of H-1 chemical shifts with surfactant concentrations. Results show that the CAC values of protons at different positions of the same molecule are different, and those of the terminal methyl protons are the lowest, respectively, which suggests that the terminal groups of the alkyl chains aggregates first during micellization. Measurement of the transverse relaxation time (T-2) of different protons in SDS also show that the terminal methyl protons start to decrease with the increase in concentration first, which supports the above mentioned tendency. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
WOS关键词	CRITICAL MICELLE CONCENTRATION ; SODIUM DODECYL-SULFATE ; NMR ; ASSOCIATION ; MECHANISM ; MODEL
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000406726500011
资助机构	National Natural Science Foundation of China(21375145 ; National Natural Science Foundation of China(21375145 ; 21221064) ; 21221064) ; National Natural Science Foundation of China(21375145 ; National Natural Science Foundation of China(21375145 ; 21221064) ; 21221064)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/11314]
专题	武汉物理与数学研究所_磁共振基础研究部
作者单位	1.Univ Chinese Acad Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiao-Ying,Mao, Shi-Zhen,Liu, Mai-Li,et al. Hydrophobic terminal group of surfactant initiating micellization as revealed by H-1 NMR spectroscopy[J]. CHINESE CHEMICAL LETTERS,2017,28(7):1413-1416.
APA	Chen, Xiao-Ying,Mao, Shi-Zhen,Liu, Mai-Li,Du, You-Ru,&Yu, Gang-Jin.(2017).Hydrophobic terminal group of surfactant initiating micellization as revealed by H-1 NMR spectroscopy.CHINESE CHEMICAL LETTERS,28(7),1413-1416.
MLA	Chen, Xiao-Ying,et al."Hydrophobic terminal group of surfactant initiating micellization as revealed by H-1 NMR spectroscopy".CHINESE CHEMICAL LETTERS 28.7(2017):1413-1416.