About: Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Poly(n-butyl methacrylate)/clay and poly(n-butyl methacrylate-co-methyl methacrylate)/clay nanocomposites were synthesized via emulsion polymerization to act as barrier membranes. Cloisite Na+ was modified via ion exchange to tether acryloxy reactive groups on the surface of the silicate platelet in order to promote polymerization and exfoliation of the stacked platelets. The addition of organically modified clays in the matrix improved the thermal and barrier properties of the nanocomposite. Results indicate that the polymer particle size in the emulsion dictated the dispersion of the montmorillonite clay platelets in the polymer matrix and the subsequent barrier properties of the membranes. Membranes fabricated utilizing emulsions with polymer particle sizes down to 120 nm gave rise to the highest barrier properties. The presence of 5 wt.% clays decreased gas permeability by up to 85% in certain copolymer systems compared to the pristine polymer. Poly(n-butyl methacrylate)/clay and poly(n-butyl methacrylate-co-methyl methacrylate)/clay nanocomposites were synthesized via emulsion polymerization to act as barrier membranes. Cloisite Na+ was modified via ion exchange to tether acryloxy reactive groups on the surface of the silicate platelet in order to promote polymerization and exfoliation of the stacked platelets. The addition of organically modified clays in the matrix improved the thermal and barrier properties of the nanocomposite. Results indicate that the polymer particle size in the emulsion dictated the dispersion of the montmorillonite clay platelets in the polymer matrix and the subsequent barrier properties of the membranes. Membranes fabricated utilizing emulsions with polymer particle sizes down to 120 nm gave rise to the highest barrier properties. The presence of 5 wt.% clays decreased gas permeability by up to 85% in certain copolymer systems compared to the pristine polymer. (en)
Title	Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization (en)
skos:prefLabel	Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization Gas transport properties of polyacrylate/clay nanocomposites prepared via emulsion polymerization (en)
skos:notation	RIV/61389013:_____/10:00348578!RIV11-MSM-61389013
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ME09058), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	1/2
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Sedláková, Zdeňka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	260231
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/10:00348578
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	barrier membranes; nanocomposites; phenomenological models (en)
http://linked.open.../riv/klicoveSlovo	nanocomposites barrier membranes phenomenological models
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[F37B2E240483]
http://linked.open...i/riv/nazevZdroje	Journal of Membrane Science
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Preparation and characterization of hybrid organic-inorganic nanocomposites
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	363
http://linked.open...iv/tvurceVysledku	Sedláková, Zdeňka Marand, E. Herrera-Alonso, J. M.
http://linked.open...ain/vavai/riv/wos	000282794100004
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0376-7388
number of pages	9 (xsd:int)

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