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000911984 1001_ $$0P:(DE-HGF)0$$aKühnhammer, Matthias$$b0$$eCorresponding author
000911984 245__ $$aStructure formation of PNIPAM microgels in foams and foam films
000911984 260__ $$aLondon$$bRoyal Soc. of Chemistry$$c2022
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000911984 520__ $$aResponsive aqueous foams are very interesting from a fundamental point of view and for various applications like foam flooding or foam flotation. In this study thermoresponsive microgels (MGs) made from poly(N-isopropyl-acrylamide) (PNIPAM) with varying cross-linker content, are used as foam stabilisers. The foams obtained are thermoresponsive and can be destabilised by increasing the temperature. The structuring of MGs inside the foam films is investigated with small-angle neutron scattering and in a thin film pressure balance. The foam films are inhomogeneous and form a network-like structure, in which thin and MG depleted zones with a thickness of ca. 30nm are interspersed in a continuous network of thick MG containing areas with a thickness of several 100nm. The thickness of this continuous network is related to the elastic modulus of the individual MGs, which was determined by atomic force microscopy indentation experiments. Both, the elastic moduli and foam film thicknesses, indicate a correlation to the network elasticity of the MGs predicted by the affine network model.
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000911984 65017 $$0V:(DE-MLZ)GC-1602-2016$$2V:(DE-HGF)$$aPolymers, Soft Nano Particles and  Proteins$$x0
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000911984 7001_ $$0P:(DE-HGF)0$$aGräff, Kevin$$b1
000911984 7001_ $$0P:(DE-HGF)0$$aLoran, Edwin$$b2
000911984 7001_ $$0P:(DE-HGF)0$$aSoltwedel, Olaf$$b3
000911984 7001_ $$0P:(DE-HGF)0$$aLöhmann, Oliver$$b4
000911984 7001_ $$0P:(DE-Juel1)130646$$aFrielinghaus, Henrich$$b5$$ufzj
000911984 7001_ $$0P:(DE-HGF)0$$avon Klitzing, Regine$$b6
000911984 773__ $$0PERI:(DE-600)2191476-X$$a10.1039/D2SM01021F$$gp. 10.1039.D2SM01021F$$n48$$p9249-9262 $$tSoft matter$$v18$$x1744-683X$$y2022
000911984 8564_ $$uhttps://juser.fz-juelich.de/record/911984/files/d2sm01021f.pdf
000911984 8564_ $$uhttps://juser.fz-juelich.de/record/911984/files/frielinghaus_191clean.pdf$$yPublished on 2022-10-19. Available in OpenAccess from 2023-10-19.
000911984 8564_ $$uhttps://juser.fz-juelich.de/record/911984/files/frielinghaus_191si.pdf$$yPublished on 2022-10-19. Available in OpenAccess from 2023-10-19.
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