Late stage of the phase-separation process : coalescence-induced coalescence, gravitational sedimentation, and collective evaporation mechanisms

We study the separation in the binary and ternary mixtures of the water/surfactant C12E5/polymer PEG system. The phase separation in the mixtures at late stages is governed by two distinct mechanisms: the coalescence-induced coalescence and the droplet evaporation mechanism. We show that when the co...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 24(2008), 13 vom: 01. Juni, Seite 6433-40
1. Verfasser: Kalwarczyk, Tomasz (VerfasserIn)
Weitere Verfasser: Ziebacz, Natalia, Fiałkowski, Marcin, Hołyst, Robert
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a We study the separation in the binary and ternary mixtures of the water/surfactant C12E5/polymer PEG system. The phase separation in the mixtures at late stages is governed by two distinct mechanisms: the coalescence-induced coalescence and the droplet evaporation mechanism. We show that when the coalescence-induced coalescence process is globally terminated in the sample consisting of a dense system of domains, another mechanism, which we call the collective droplet evaporation, starts to dominate. It manifests itself as a front of "evaporating" domains, which propagates at constant speed in the system. We show that the collective evaporation is induced by the gravitational drift of large droplets 
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700 1 |a Ziebacz, Natalia  |e verfasserin  |4 aut 
700 1 |a Fiałkowski, Marcin  |e verfasserin  |4 aut 
700 1 |a Hołyst, Robert  |e verfasserin  |4 aut 
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