20.500.12556/DKUM-94199 Sinteza N-vinilkaprolaktam-ko-N,N-dimetilakrilamidnih poliHIPE z uporabo emulzijskega sistema olje-v-olju magistrsko delo Synthesis of N-vinylcaprolactam-co-N,N-dimethylacrylamide PolyHIPEs Using Oil-in-Oil Emulsion Systems V okviru magistrskega dela smo z uporabo emulzijskega sistema olje-v-olju sintetizirali visoko porozne polimerne materiale na osnovi N-vinilkaprolaktama (VCL) in N,N-dimetilakrilamida (DMAA). Preizkusili smo različna molska razmerja VCL in DMAA ter jih zamrežili z dvema različnima zamreževaloma, in sicer z N,N'-metilenbisakrilamidom (MBAA) in etilen glikol dimetakrilatom (EGDMA). Primerjali smo uspešnost polimerizacije dveh različnih tipov emulzijskega sistema, ugotavljali stabilnost emulzije pri različnih zamreženjih ter spreminjali zamreženost naših visoko poroznih polimerov. Za uspešno polimerizacijo poliHIPE smo izbrali ustrezen tip emulzijskega sistema ter primeren surfaktant. Eksperimentalno smo potrdili predvidevanje, da z emulzijskim sistemom voda-v-olju ne bi bili uspešni. V nadaljnjih analizah smo se osredotočili na emulzijski sistem olje-v-olju in preučevali vpliv različnih parametrov na kemijske in fizikalno-morfološke lastnosti materialov. S FTIR spektroskopijo smo identificirali prisotnost funkcionalnih skupin, s 13C CP/MAS NMR spektroskopijo pa smo potrdili uspešno polimerizacijo kopolimerov in homopolimerov, značilnih za uporabljena monomera in zamreževala. PoliHIPE strukturo smo potrdili s SEM in helijevo piknometrijo. In our research, highly porous polymeric materials based on N-vinylcaprolactam (VCL) and N,N-dimethylacrylamide (DMAA) were synthesized using an oil-in-oil emulsion system. We tested different ratios of VCL and DMAA and crosslinked them with two different crosslinkers, N,N'-methylenebisacrylamide (MBAA) and ethylene glycol dimethacrylate (EGDMA). We compared the polymerization efficiency of the two different emulsion systems, determined the stability of the emulsion and varied the crosslinking of our highly porous polymers. We selected the appropriate type of emulsion system and surfactant for successful polymerization of PolyHIPE. We experimentally confirmed the prediction that we would not be successful with a water-in-oil emulsion system. In further analyses, we focused on the oil-in-oil emulsion system and investigated the influence of different parameters on the chemical and physical-morphological properties of the materials. The presence of functional groups characteristic of the monomers and crosslinkers was detected by FTIR spectroscopy and the successful polymerization of copolymers and homopolymers was confirmed by 13C CP/MAS NMR spectroscopy. PolyHIPE structure was confirmed by SEM and helium pycnometry. poliHIPE kopolimer emulzija N-vinilkaprolaktam N N-dimetilakrilamid temperaturno odzivni polimeri polyHIPE copolymer emulsion N-vinylcaprolactam N N-dimethylacrylamide temperature-responsive polymers. true true false [Š. Podgrajšek] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-08-07 18:09:51 2025-08-26 10:53:35 2025-08-27 03:50:22 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor XIII, 53 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.095.26(043.2) 246624003 EMAG_Podgrajsek_Spela_2025.pdf EMAG_Podgrajsek_Spela_2025.pdf 1 1B743CAE4F95CAFA3DBD3D6F915F15A0 f42ea5a87e2213d561d67c9ee0943ddf79559b6bd0c378edea155e9c3a6aec58 3f71aaa5-762b-11f0-a01d-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=195041 Fakulteta za naravoslovje in matematiko 0 0 0