20.500.12556/DKUM-67423 Cross-linked porous poly(acrylic acid-co-acrylamide) from high internal phase emulsions: preparation and functionalisation By using emulsions with high volume fractions of internal phase as polymerisation media porous copolymers of acrylic acid and acrylamide, cross-linked by methylenebisacrylamide, were prepared. The ratio of acrylic acid to acrylamide were varied (molar ratios 70:30, 50:50, 30:70) in order to yield polymers with various loading of acidic functional groups. Porous polymers with an open-cellular architecture were obtained with void diameters between 2.8 μm and 3.9 μm and with interconnecting pores approx. 0.3 μm in diameter. The chemical composition of the polymers influenced the conversion degrees during the process of functionalisation of acidic groups to acid chloride, being the highest in the case of polymer with the lowest content of acrilyc acid. Pripravili smo porozne netopne kopolimere med akrilno kislino in akrilamidom (delež akrilamida med 30 in 70 odstotki), zamrežene z metilenbisakrilamidom, pri čemer smo kot polimerizacijski medij uporabili emulzije z visokim deležem notranje faze. Nastali so visoko porozni polimeri z odprto celično strukturo s premerom praznin med 2.8 μm in 3.9 μm in s povezovalnimi porami s premeri okoli 0.3 μm. Kemijska sestava polimerov je vplivala na stopnje pretvorbe pri funkcionalizaciji do kislinskega klorida; najvišjo stopnjo pretvorbe smo opazili pri najvišjem deležu akrilamida v polimeru. porous monoliths copolymers polyacrylic acid polyacrylamide plyHIPE high internal phase emulsion porozni monoliti kopolimeri poliakrilna kislina poliakrilamid plyHIPE emulzija z visokim deležem notranje faze true true true Slovenian Chemical Society Angleški jezik Slovenski jezik Znanstveno delo 2017-08-17 12:30:59 2017-08-17 12:32:07 2026-09-09 08:55:39 2019-07-11 16:19:52 2009 0 0 str. 629-634 št. 3 Letn. 56 2009 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 2008-10-20 0000-00-00 1318-0207 547.1.057:678.6 14086149 13509910 1318-0207 URN:SI:UM:DK:U3TORWS9 Acta_Chimica_Slovenica_2009_Majer,_Krajnc_Cross-Linked_Porous_Poly(Acrylic_Acid-co-Acrylamide)_from_High_Internal_Phase_Emulsions_Prepar.pdf Acta_Chimica_Slovenica_2009_Majer,_Krajnc_Cross-Linked_Porous_Poly(Acrylic_Acid-co-Acrylamide)_from_High_Internal_Phase_Emulsions_Prepar.pdf 1 388EFFBF36299BE96CA26F9FF9062BB1 d2f95d90b4ae3c9f80063cbc396d7a1c767611fe8f5399c690f6da398cff0fa0 85c04c79-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/99e3378c-f609-4480-ae83-c4222e5f0208 https://dk.um.si/Dokument.php?lang=slv&id=115440 http://acta-arhiv.chem-soc.si/56/56-03-629.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=115439 Fakulteta za naravoslovje in matematiko 0 0 0