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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la2023067
|2 doi
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|a eng
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|a Feichtenschlager, Bernhard
|e verfasserin
|4 aut
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|a Nanoparticle assemblies as probes for self-assembled monolayer characterization
|b correlation between surface functionalization and agglomeration behavior
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|c 2012
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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 25.04.2012
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|a Date Revised 10.01.2012
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The ordering of dodecyl chains has been investigated in mixed monolayers of phosphonic acid capping agents on the surface of hydrothermally prepared zirconia nanocrystals. Methyl-, phenyl-, pyryl-, and tert-butylphosphonic acids have been used to investigate series with different mixing ratios with dodecylphosphonic acid as the cocapping agent for the mixed monolayer formation. Fourier transform infrared (FTIR) studies revealed that an increasing amount (different for each type) of coadsorbed capping agent reduces the ordering of the dodecyl chains significantly. Small-angle X-ray scattering (SAXS) verified that with increasing amount of cocapping agent the agglomeration of the particles decreases. The strong correlation of the agglomeration behavior with the ordering of the surface-bound alkyl chains leads to the conclusion that interparticle bilayers, formed via long alkyl chain packing, are responsible and can be controlled on a molecular level by coadsorbing various molecules. On the basis of this correlation, nanoparticles can be used as probes for self-assembled monolayer investigation by an indirect structural method (SAXS) and correlated with the routine spectroscopical method for the chemical analysis of surface groups (FTIR)
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|a Journal Article
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1 |
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|a Pabisch, Silvia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peterlik, Herwig
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kickelbick, Guido
|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 28(2012), 1 vom: 10. Jan., Seite 741-50
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|x 1520-5827
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|g volume:28
|g year:2012
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|g day:10
|g month:01
|g pages:741-50
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|u http://dx.doi.org/10.1021/la2023067
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