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Influence of Monomer Structure, Initiation, and Porosity on Mechanical and Morphological Characteristics of Thiol-ene PolyHIPEs
Stanko Kramer, Peter Krajnc, Irena Pulko, 2023, original scientific article

Keywords: porous polymers, high internal phase emulsion, HIPEs
Published in DKUM: 08.05.2024; Views: 162; Downloads: 6
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Nanocomposite foams from iron oxide stabilized dicyclopentadiene high internal phase emulsions : preparation and bromination
Sebastijan Kovačič, Christian Slugovc, Gregor Ferk, Nadejda B. Matsko, 2014, professional article

Abstract: Nanocomposite polyHIPE foams with open-cellular morphology were obtained using nanoparticles ($γFe_2O_3/Fe_3O_4$), surfactant (Pluronic L121) or nanoparticle/surfactant stabilized dicyclopentadiene high internal phase emulsions (DCPD HIPEs). Upon curing, cavity sizes were found to vary drastically between 950 ± 360 µm down to 7 ±3 µm de- pending on the HIPE formulations. As-obtained nanocomposite polyHIPE foams were functionalized using elemental bromine in THF. Upon bromination the nanoparticles are moved from the cavities surfaces into the bulk phase of the polymer scaffold, which affects the inductive-heating capability of the magnetic nanocomposite foams decreasing it by the factor of 2.
Keywords: chemical technology, nanocomposites, bromination, microstructure, pickering HIPEs, $γFe_2O_3/Fe_3O_4$ nanoparticles, Ring Opening Metathesis Polymerization (ROMP), dicyclopentadiene, inductive heating
Published in DKUM: 24.08.2017; Views: 1237; Downloads: 142
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