About: TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the case of semi-crystalline polymers, such as LLDPE, the equilibrium sorption in the polymer-penetrant system can?t be described as the simple sorption of penetrant in the amorphous polymer phase, because the swelling of amorphous polymer is elastically constrained by the surrounding crystallites. This constraining effect is the source of a large discrepancy between measured sorption data and theoretical predictions. The fraction of constrained segments of amorphous polymer has been determined from our previous gravimetric measurements in the apparatus utilizing magnetic suspension balance. The constraining effect is affecting also diffusion transport of penetrants in LLDPE. Therefore we constructed and are going to introduce a new pressure-decay apparatus capable to measure diffusion and sorption both above and below the polymer melting temperature. Results of these measurements are going to be explained and processed. However, these measurements provide us with the combined effect of elastic con In the case of semi-crystalline polymers, such as LLDPE, the equilibrium sorption in the polymer-penetrant system can?t be described as the simple sorption of penetrant in the amorphous polymer phase, because the swelling of amorphous polymer is elastically constrained by the surrounding crystallites. This constraining effect is the source of a large discrepancy between measured sorption data and theoretical predictions. The fraction of constrained segments of amorphous polymer has been determined from our previous gravimetric measurements in the apparatus utilizing magnetic suspension balance. The constraining effect is affecting also diffusion transport of penetrants in LLDPE. Therefore we constructed and are going to introduce a new pressure-decay apparatus capable to measure diffusion and sorption both above and below the polymer melting temperature. Results of these measurements are going to be explained and processed. However, these measurements provide us with the combined effect of elastic con (en)
Title	TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD (en)
skos:prefLabel	TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD (en)
skos:notation	RIV/60461373:22340/10:00023232!RIV11-GA0-22340___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GAP106/10/1912), P(GD104/08/H055), S, Z(MSM6046137306)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Holeček, Marcel Kosek, Juraj Nistor, Andra Gregor, Tomáš Meisterová, Lucie Bobák, Marek
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	293407
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/10:00023232
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	pressure decay; pressure dynamic; diffusion in polymers; polyolefins (en)
http://linked.open.../riv/klicoveSlovo	polyolefins pressure decay pressure dynamic diffusion in polymers
http://linked.open...ontrolniKodProRIV	[79EEB38A282E]
http://linked.open...v/mistoKonaniAkce	Tatranské Matliare, Slovensko
http://linked.open...i/riv/mistoVydani	Bratislava
http://linked.open...i/riv/nazevZdroje	Proceedings of the 37th International Conference of Slovak Society of Chemical Engineering, 2010
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Morphology-dependent sorption and diffusion of penetrants in polymers Transport and reaction processes in complex multiphase systems
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Gregor, Tomáš Kosek, Juraj Nistor, Andra Meisterová, Lucie Bobák, Marek Holeček, Marcel
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-01-01 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Reakčně-transportní chemicko-inženýrské systémy a jejich dynamické chování, modelování a řízení chemických a biotechnologických procesů
number of pages	11 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Slovak Society of Chemical Engineering
https://schema.org/isbn	978-80-227-3290-1
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	TRANSPORT OF PENETRANTS IN SEMI-CRYSTALINE LLDPE STUDIED BY PRESSURE-DECAY METHOD

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