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Nanostructure Changes upon Polymerization of Aqueous and Organic Phases in Organized Mixtures

Abstract : The nanostructure of a microemulsion can be strongly affected by the liquid-to-solid transition during polymerization. Here, we examined the evolution of nanostructures of different ternary mixtures, including two microemulsions and a single lamellar phase that upon polymerization are quantitatively studied by SAXS/WAXS and DSC experiments systematically performed before and after the polymerization of both aqueous and organic phases. Samples are mixtures of the poly(2-acrylamido-2-methylpropanesulfonic acid) network as the aqueous phase and poly(hexyl methacrylate) as the organic phase stabilized by Brij35 surfactant. Upon polymerization, the surfactant is excluded from the water/oil interface and crystallizes, strongly changing the nanostructure of samples where it is the main component. In samples where the aqueous phase is the main component, only a few changes in structure are observed upon polymerization. This study demonstrates quantitatively the possibility to preserve nanostructures during polymerization, thus inducing a templating effect.
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Submitted on : Thursday, October 13, 2016 - 11:51:52 AM
Last modification on : Monday, April 4, 2022 - 2:44:03 PM



Cecile Noirjean, Cedric Vancaeyzeele, Sophie Bourcier, Fabienne Testard, Frederic Vidal, et al.. Nanostructure Changes upon Polymerization of Aqueous and Organic Phases in Organized Mixtures. Langmuir, American Chemical Society, 2016, 32, pp.10104 - 10112. ⟨10.1021/acs.langmuir.6b02626⟩. ⟨cea-01380623⟩



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