Microcellular open-porous polystyrene-based composites from emulsionsHuš, Sebastjan (Avtor) Kolar, Mitja (Avtor) Krajnc, Peter (Avtor) , Inštitut za kovinske materiale in tehnologije (Lastnik avtorskih pravic) polyHIPEporous polymersnanocompositesporositypolystyreneSeries of cross-linked polystyrene samples were prepared using an emulsion templating approach, where monomers were contained in the continuous phase of the emulsion, while the droplet aqueous phase induced primary pores, connected with a number of secondary pores. Emulsions with a high fraction of the droplet phase (HIPEs) were used and stabilised with a combination of a surfactant (sorbitan monooleate) and various types of particles (charcoal powder, copper powder and carbon nanopowder). The morphology of the resulting porous polymer depends on the type and amount of the particles added to the emulsion; however, in all the cases open-cellular morphology was formed. The size of the primary pores (cavities) ranged from 5 µm to 25 µm, while the size of the secondary interconnecting pores was from 1 µm to 5 µm. The materials were investigated using scanning electron microscopy and nitrogen adsorption/desorption.20142017-03-16 15:38:09Znanstveno delo65196ISSN: 1580-2949UDK: 544.022.537:678.746.2OceCobissID: 106193664COBISS_ID: 17826326ISSN pri članku: 1580-2949NUK URN: URN:SI:UM:DK:DUPTS142sl