20.500.12556/DKUM-65196 Microcellular open-porous polystyrene-based composites from emulsions Mikrocelični odprtoporozni polistirenski kompoziti iz emulzij Series 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. Z uporabo emulzij z visokim deležem notranje faze smo pripravili serijo zamreženih polistirenskih vzorcev. Monomeri so bili vsebovani v kontinuirni fazi emulzije, kapljice notranje vodne faze pa so povzročile poroznost materiala z vrsto primarnih por, povezanih s povezovalnimi porami. Emulzije z visokim deležem notranje faze (HIPE) smo stabilizirali z uporabo surfaktanta v kombinaciji z različnimi delci (oglje v prahu, baker v prahu in ogljikov nanoprah). Na morfologijo pripravljenih odprtoporoznih materialov sta vplivala tako vrsta kot tudi količina dodanih delcev. Velikost primarnih por je bila v območju med 5 µm in 25 µm, medtem ko je bila velikost sekundarnih povezovalnih por v območju med 1 µm in 5 µm. Materiale smo karakterizirali z uporabo vrstičnega elektronskega mikroskopa in adsorpcijo/desorpcijo dušika. polyHIPE porous polymers nanocomposites porosity polystyrene porozni polimeri poliHIPE nanokompoziti poroznost polistiren emulzije true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-03-16 15:38:09 2017-03-16 15:39:49 2022-07-07 03:08:37 2019-07-11 15:10:36 2014 0 0 str. 403-407 št. 3 Letn. 48 maj-jun. 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1580-2949 544.022.537:678.746.2 106193664 17826326 1580-2949 URN:SI:UM:DK:DUPTS142 Materiali_in_Tehnologije_2014_Hus,_Kolar,_Krajnc_Microcellular_Open-Porous_Polystyrene-Based_Composites_From_Emulsions.pdf Materiali_in_Tehnologije_2014_Hus,_Kolar,_Krajnc_Microcellular_Open-Porous_Polystyrene-Based_Composites_From_Emulsions.pdf 1 CBF9DDD037302C19D5A3C61F1A8EF8BA 7396b34f57defe15c6815d9fd19a3b9e66ae5bdddc2a9805ceb6061acbfcb698 febc81f5-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=109905 http://mit.imt.si/Revija/izvodi/mit143/hus.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=109904 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0