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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la801662g
|2 doi
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|a pubmed24n0610.xml
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|a (DE-627)NLM182903737
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|a (NLM)18842064
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Penfold, J
|e verfasserin
|4 aut
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| 245 |
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|a Impact of model perfumes on surfactant and mixed surfactant self-assembly
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|c 2008
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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
|b cr
|2 rdacarrier
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|a Date Completed 01.12.2008
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|a Date Revised 30.10.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The impact of some model perfumes on surfactant self-assembly has been investigated, using small-angle neutron scattering. A range of different model perfumes, with differing degrees of hydrophilicity/hydrophobicity, have been explored, and in order of increasing hydrophobicity include phenyl ethanol (PE), rose oxide (RO), limonene (LM), linalool (LL), and dihydrogen mercenol (DHM). The effect of their solubilization on the nonionic surfactant micelles of dodecaethylene monododecyl ether (C12EO12) and on the mixed surfactant aggregates of C12EO12 and the cationic dialkyl chain surfactant dihexadecyl dimethyl ammonium bromide (DHDAB) has been quantified. For PE and LL the effect of their solubilization on the micelle, mixed micelle/lamellar and lamellar regimes of the C12EO12/DHDAB mixtures, has also been determined. For the C12EO12 and mixed DHDAB/C12EO12 micelles PE is solubilized predominantly at the hydrophilic/hydrophobic interface, whereas the more hydrophobic perfumes, from RO to DHM, are solubilized predominantly in the hydrophobic core of the micelles. For the C12EO12 micelles, with increasing perfume concentration, the more hydrophobic perfumes (RO to DHM) promote micellar growth. Relatively modest growth is observed for RO and LM, whereas substantial growth is observed for LL and DHM. In contrast, for the addition of PE the C12EO12 micelles remain as relatively small globular micelles, with no significant growth. For the C12EO12/DHDAB mixed micelles, the pattern of behavior with the addition of perfume is broadly similar, except that the micellar growth with increasing perfume concentration for the more hydrophobic perfumes is less pronounced. In the Lbeta (Lv) region of the DHDAB-rich C12EO12/DHDAB phase diagram, the addition of PE results in a less structured (less rigid) lamellar phase, and ultimately a shift toward a structure more consistent with a sponge or bicontinuous phase. In the mixed L1/Lbeta region of the phase diagram PE induces a slight shift in the coexistence from Lbeta toward L1. The addition of LL to the Lbeta (Lv) region of the DHDAB-rich C12EO12/DHDAB phase diagram also results in a reduction in the lamellar structure (less rigid lamellae), and a shift toward a structure more consistent with a sponge or bicontinuous phase, or a coexisting phase of small vesicles. For the mixed L1/Lbeta region of the phase diagram LL induces a shift toward a greater L beta component
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|a Journal Article
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| 700 |
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|a Tucker, I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Green, A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grainger, D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jones, C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ford, G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Roberts, C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hubbard, J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Petkov, J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Thomas, R K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grillo, I
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 21 vom: 04. Nov., Seite 12209-20
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:24
|g year:2008
|g number:21
|g day:04
|g month:11
|g pages:12209-20
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| 856 |
4 |
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|u http://dx.doi.org/10.1021/la801662g
|3 Volltext
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