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231224s2013 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la400161n
|2 doi
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|a pubmed24n0752.xml
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|a eng
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|a Šarac, Bojan
|e verfasserin
|4 aut
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|a Salicylate isomer-specific effect on the micellization of dodecyltrimethylammonium chloride
|b large effects from small changes
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 20.09.2013
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|a Date Revised 09.04.2013
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Specific effects of the sodium salts of m- and p-hydroxybenzoates (m-HB and p-HB) on the aggregation process of dodecyltrimethylammonium chloride have been investigated by isothermal titration calorimetry, electrical conductivity, and (1)H NMR and compared with already reported data for the sodium salt of o-hydroxybenzoate (o-HB). For p-HB, it has been found that the aggregate is only formed by spherical micelles at all p-HB concentrations. On the other side, the situation is more complex for o-HB, where two distinct states of aggregation can be involved, depending on the concentration of o-HB. At high salt concentration, rodlike micelles are formed, whereas at lower concentration spherical aggregates are predominant. The transition from the cylinder to the sphere increases the mobility of the surfactant because the core of the rodlike micelles is more closely packed due to the expulsion of water from the interior of the aggregate. m-HB exhibits an intermediate behavior between these two extreme situations. The effect of the position of hydrophilic substituents on the aromatic ring on the insertion of the hydroxybenzoate anion in the micellar aggregate has been discussed
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|a Journal Article
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1 |
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|a Mériguet, Guillaume
|e verfasserin
|4 aut
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1 |
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|a Ancian, Bernard
|e verfasserin
|4 aut
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| 700 |
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|a Bešter-Rogač, Marija
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 29(2013), 14 vom: 09. Apr., Seite 4460-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:29
|g year:2013
|g number:14
|g day:09
|g month:04
|g pages:4460-9
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|u http://dx.doi.org/10.1021/la400161n
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