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Vpliv sestave emulzije in polimerizacijskih pogojev na morfološke značilnosti polistirenskih poli(hipe) membran [Elektronski vir] = Influence of emulsion composition and polymerisation conditions on morphology of polystyrene poly(hipe) membranesSevšek, Urška ; Krajnc, Peter, 1970-Z uporabo tehnike polimerizacije kontinuirne faze emulzij smo pripravili stiren/divinilbenzen polimere z visoko stopnjo poroznosti. Pripravljeni polimeri so bili v obliki monolitov in membran. ... Zamreženost je bila pri vseh vzorcih 4 %. Variirali smo delež notranje faze in delež surfaktanta ter opazovali vpliv na morfologijo polimera. Z namenom izboljšanja mehanskih lastnosti smo dodali razlicne deleže EHA (2-etilheksil akrilat). Elektronska mikroskopija je pokazala zaprto strukturo v primeru nizke koncentracije surfaktanta in 80 % deležem notranje faze. Optimalen dodatek EHA v primeru zaprte strukture je bil 1 %. Pri višjih deležih EHA membrane niso bile uporabne. Bistveno povecanje odprtosti smo opazili pri povecevanju deleža notranje faze iz 80 % na 95 % pri deležu surfaktanta 20 %. V tem primeru je bil optimalen delež EHA 5 %. Priprava membran ni bila možna pri 95 % deležu notranje faze.Source: Slovenski kemijski dnevi 2010, Maribor, 23. in 24. september 2010 [Elektronski vir] (7 str.)Type of material - conference contributionPublish date - 2010Language - slovenianCOBISS.SI-ID - 14434582
Author
Sevšek, Urška |
Krajnc, Peter, 1970-
Topics
monoliti |
membrane |
emulzija |
poliHIPE |
porozni polimeri |
monolith |
membrane |
emulsion |
polyHIPE |
porous polymers
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Sevšek, Urška | 30946 |
Krajnc, Peter, 1970- | 15501 |
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