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|a 10.1021/acs.langmuir.4c05364
|2 doi
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|a eng
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|a Grünewald, E Wouter
|e verfasserin
|4 aut
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|a Ripening of Nonaqueous Emulsions of n-Decane in Dimethyl Sulfoxide Observed by Time-Resolved Spin-Echo Small-Angle Neutron Scattering (SESANS)
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|c 2025
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 19.05.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Since macroemulsions are only kinetically stable, characterizing their behavior as they change over time is relevant to their application. Time-of-flight spin-echo small-angle neutron scattering (SESANS) enables time-resolved measurement of the bulk evolution of concentrated, opaque emulsions without perturbing the system. Here, we present time-of-flight SESANS measurements of an n-decane-in-DMSO emulsion stabilized by Pluronic P-123, where changes in the system as it ripened were resolved. The radius of emulsion droplets were shown to grow over time with a rate of 25 μm3 h-1, suggesting that Ostwald ripening is the dominant aging process. Furthermore, SANS measurements revealed the presence of a stable population of swollen surfactant micelles, providing an additional mechanism for mass transfer between particles. Since time-of-flight SESANS can be used to obtain information about particle sizes, ripening rates, and associated processes, it is uniquely suited for studying the behavior of dense colloidal systems over time
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|a Journal Article
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|a Dalgliesh, Robert M
|e verfasserin
|4 aut
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|a Parnell, Steven R
|e verfasserin
|4 aut
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|a Bouwman, Wim G
|e verfasserin
|4 aut
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|a Smith, Gregory N
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g (2025) vom: 19. Mai
|w (DE-627)NLM098181009
|x 1520-5827
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|g year:2025
|g day:19
|g month:05
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|u http://dx.doi.org/10.1021/acs.langmuir.4c05364
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