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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la4045896
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|a eng
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|a Mehranfar, Mahsa
|e verfasserin
|4 aut
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|a Effect of temperature on morphologies of evaporation-triggered asphaltene nanoaggregates
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|c 2014
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a Date Completed 03.09.2014
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|a Date Revised 28.01.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We use atomic force microscopy to observe the structural changes in petroleum-asphaltene aggregates in air as a function of temperature. The aggregates are obtained by evaporating a toluene solution containing asphaltene. Increase in temperature leads to transition from self-assembled fractal structures to substantially larger mobile "liquid-like" domains that show distinct tendencies of substrate repulsion and self-coalescence. This new aggregation dynamics of asphaltene can be explained by temperature-induced transition of asphaltene from pure amorphous to liquid crystalline phase. Observation of this new phenomenon for asphaltene will have wide implications for asphaltene handling and separation
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|a Journal Article
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|a Gaikwad, Ravi
|e verfasserin
|4 aut
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|a Das, Siddhartha
|e verfasserin
|4 aut
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|a Mitra, Sushanta K
|e verfasserin
|4 aut
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|a Thundat, Thomas
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
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|g 30(2014), 3 vom: 28. Jan., Seite 800-4
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