title: Generation of Silicone Poly-HIPEs with Controlled Pore Sizes via Reactive Emulsion Stabilization.
abstract: Macrocellular silicone polymers are obtained after solidification of the continuous phase of a poly(dimethylsiloxane) emulsion, which contains poly(ethylene glycol) drops of sub-millimetric dimensions. Coalescence of the liquid template emulsion is prohibited by a reactive blending approach. The relationship is investigated in detail between the interfacial properties and the emulsion stability, and micro- and millifluidic techniques are used to generate macrocellular polymers with controlled structural properties over a wider range of cell sizes (0.2-2 mm) and volume fractions of the continuous phase (0.1%-40%). This approach could easily be transferred to a wide range of polymeric systems.
authors.affiliation: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay Cedex, France. giustiniani@lps.u-psud.fr, drenckhan@lps.u-psud.fr.
authors.forename: Anaïs
authors.initials: A
authors.lastname: Giustiniani
authors.affiliation: Sorbonne Universités UPMC Univ. Paris 06, CNRS, UMR8232 Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, 4 place Jussieu, F-75005, Paris, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Guégan
authors.affiliation: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay Cedex, France.
authors.forename: Manon
authors.initials: M
authors.lastname: Marchand
authors.affiliation: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay Cedex, France.
authors.forename: Christophe
authors.initials: C
authors.lastname: Poulard
authors.affiliation: Laboratoire de Physique des Solides, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91405, Orsay Cedex, France.
authors.forename: Wiebke
authors.initials: W
authors.lastname: Drenckhan
mesh_terms: D004129:Dimethylpolysiloxanes / Q000138:chemical synthesis* / Q000737:chemistry; D004655:Emulsions / Q000138:chemical synthesis / Q000737:chemistry; D010316:Particle Size; D012828:Silicones / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D004129:Dimethylpolysiloxanes; D004655:Emulsions; D012828:Silicones; C013830:baysilon
keywords: cellular polymers; interfacial tension; poly-HIPE; reactive blending; solid emulsions