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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b00927
|2 doi
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|a pubmed24n0903.xml
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|a (NLM)28415837
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|a DE-627
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|e rakwb
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|a eng
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|a Li, Qintang
|e verfasserin
|4 aut
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|a Effects of a Spacer on the Phase Behavior of Gemini Surfactants in Ethanolammonium Nitrate
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 10.07.2018
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|a Date Revised 10.07.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The aggregation behavior of quaternary ammonium gemini surfactants (12-s-12) in a protic ionic liquid, ethanolammonium nitrate (EOAN), was investigated by small-angle X-ray scattering, freeze-fracture transmission electron microscopy, polarized optical microscopy, and rheological measurements. The rarely reported nonaqueous two phases in the ionic liquid were observed at lower 12-s-12 concentrations. The upper phase was composed of micelles, whereas only the surfactant unimers or multimers were detected in the low phase. At higher 12-s-12 concentrations, different aggregates were formed. The lamellar phase was observed in the 12-2-12/EOAN system, whereas the normal hexagonal phases in 12-s-12/EOAN (s = 3, 4, 5, 6, 8) systems and the micellar phase in the 12-10-12/EOAN system were observed. Such a dramatic phase transition induced by the spacer chain length was due to the unique solvent characteristics of EOAN compared to those of water and its counterpart ethylammonium nitrate
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Yao, Meihuan
|e verfasserin
|4 aut
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|a Yue, Xiu
|e verfasserin
|4 aut
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|a Chen, Xiao
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 33(2017), 17 vom: 02. Mai, Seite 4328-4336
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|x 1520-5827
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|g volume:33
|g year:2017
|g number:17
|g day:02
|g month:05
|g pages:4328-4336
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|u http://dx.doi.org/10.1021/acs.langmuir.7b00927
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