Tuning Interfacial Properties and Processes by Controlling the Rheology and Structure of Poly( N-isopropylacrylamide) Particles at Air/Water Interfaces

By combining controlled experiments on single interfaces with measurements on solitary bubbles and liquid foams, we show that poly( N-isopropylacrylamide) (PNIPAM) microgels assembled at air/water interfaces exhibit a solid to liquid transition changing the temperature, and that this is associated w...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1985. - 34(2018), 24 vom: 19. Juni, Seite 7067-7076
1. Verfasser: Maestro, Armando (VerfasserIn)
Weitere Verfasser: Jones, Daniel, Sánchez de Rojas Candela, Carmen, Guzman, Eduardo, Duits, Michel H G, Cicuta, Pietro
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a By combining controlled experiments on single interfaces with measurements on solitary bubbles and liquid foams, we show that poly( N-isopropylacrylamide) (PNIPAM) microgels assembled at air/water interfaces exhibit a solid to liquid transition changing the temperature, and that this is associated with the change in the interfacial microstructure of the PNIPAM particles around their volume phase transition temperature. We show that the solid behaves as a soft 2D colloidal glass, and that the existence of this solid/liquid transition offers an ideal platform to tune the permeability of air bubbles covered by PNIPAM and to control macroscopic foam properties such as drainage, stability, and foamability. PNIPAM particles on fluid interfaces allow new tunable materials, for example foam structures with variable mechanical properties upon small temperature changes 
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700 1 |a Jones, Daniel  |e verfasserin  |4 aut 
700 1 |a Sánchez de Rojas Candela, Carmen  |e verfasserin  |4 aut 
700 1 |a Guzman, Eduardo  |e verfasserin  |4 aut 
700 1 |a Duits, Michel H G  |e verfasserin  |4 aut 
700 1 |a Cicuta, Pietro  |e verfasserin  |4 aut 
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