Preparation of microcellular polysiloxane monoliths

Microcellular polysiloxane monoliths were prepared from the continuous phase of a concentrated inverse emulsion. The formulation of the material was adapted to obtain monoliths having structural properties similar to those of common poly(styrene‐co‐divinylbenzene) polyHIPEs. The network was generated by hydrosilylation reaction between a vinylsiloxane crosslinking agent and an oligomeric hydrogenosiloxane. The solids obtained were characterized by mercury porosimetry, nitrogen sorption, and SEM. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 21–32, 2008