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|e rakwb
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|a eng
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| 100 |
1 |
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|a Abécassis, Benjamin
|e verfasserin
|4 aut
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| 245 |
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|a Electrostastic control of spontaneous curvature in catanionic reverse micelles
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 13.11.2007
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|a Date Revised 18.09.2007
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a By means of small-angle neutron scattering and conductivity measurements, we study the microstructure of octylammoniumoctanoate/octane/water catanionic reverse microemulsions with an excess of anionic or cationic surfactant. Increasing the surface charge makes the microemulsion able to incorporate much more water than in the neutral case, up to 10 water molecules per surfactant. Even with charges in the surfactant film, wormlike micelles are present in the microemulsion domain. Along water dilution lines, the classical rod-to-sphere transition due to the minimization of the curvature energy of the rigid surfactant film is observed. When temperature is decreased, a re-entrant phase transition associated with the liquid-gas equilibrium of attractive cylinders is observed. Using the framework of the Tlusty-Safran theory, attraction could originate from junctions between wormlike reverse micelles. In any case, the spontaneous curvature of the catanionic surfactant film depends on both the temperature and the net charge, whatever the sign of the latter
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|a Journal Article
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|a Testard, Fabienne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arleth, Lise
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hansen, Steen
|e verfasserin
|4 aut
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| 700 |
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|a Grillo, Isabelle
|e verfasserin
|4 aut
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| 700 |
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|a Zemb, Thomas
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 20 vom: 25. Sept., Seite 9983-9
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|x 1520-5827
|7 nnns
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| 773 |
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|g volume:23
|g year:2007
|g number:20
|g day:25
|g month:09
|g pages:9983-9
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