About: Comparison of Biodegradability of Modified Polyurethane Foams and Polyurethane Elastomeric Films

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Biodegradation of polymeric materials is important process which affects a wide range of industries. Polymer biodegradability depends on many factors as molecular weight, crystallinity or physical forms. Biodegradability of several modified polyurethanes (PUR) foams and films was tested using mixed thermophillic bacterial culture Thermophillus sp. Films and foams were modified by biopolymer component (10 % of acetyl-, hydroxyethyl- and carboxymethyl cellulose, 10% activated starch). Both films and foams supported the growth of culture in comparison with culture without PUR. Unusual long lasting lag-phase was observed when culture was cultivated in presence of PUR films. This effect was probably caused by formation of some toxic components which inhibited the start of growth. Mass decreases of foams and films were very similar, but mechanism of biodegradation is probably different. Mainly abiotic factors are involved in biodegradation of PUR foams. Products of abiotic degradation are consequently utili Biodegradation of polymeric materials is important process which affects a wide range of industries. Polymer biodegradability depends on many factors as molecular weight, crystallinity or physical forms. Biodegradability of several modified polyurethanes (PUR) foams and films was tested using mixed thermophillic bacterial culture Thermophillus sp. Films and foams were modified by biopolymer component (10 % of acetyl-, hydroxyethyl- and carboxymethyl cellulose, 10% activated starch). Both films and foams supported the growth of culture in comparison with culture without PUR. Unusual long lasting lag-phase was observed when culture was cultivated in presence of PUR films. This effect was probably caused by formation of some toxic components which inhibited the start of growth. Mass decreases of foams and films were very similar, but mechanism of biodegradation is probably different. Mainly abiotic factors are involved in biodegradation of PUR foams. Products of abiotic degradation are consequently utili (en)
Title	Comparison of Biodegradability of Modified Polyurethane Foams and Polyurethane Elastomeric Films Comparison of Biodegradability of Modified Polyurethane Foams and Polyurethane Elastomeric Films (en)
skos:prefLabel	Comparison of Biodegradability of Modified Polyurethane Foams and Polyurethane Elastomeric Films Comparison of Biodegradability of Modified Polyurethane Foams and Polyurethane Elastomeric Films (en)
skos:notation	RIV/00216305:26310/08:PU77894!RIV10-MSM-26310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021630501)
http://linked.open...iv/cisloPeriodika	15
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Márová, Ivana Obruča, Stanislav Vojtová, Lucy Piechová, Jana Novotný, Marek David, Jan
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	Vysoké učení technické v Brně / Fakulta chemická
http://linked.open...dnocenehoVysledku	360546
http://linked.open...ai/riv/idVysledku	RIV/00216305:26310/08:PU77894
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	biodegradation, polyurethane, foam, film (en)
http://linked.open.../riv/klicoveSlovo	biodegradation film polyurethane foam
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[05818F4E2DF3]
http://linked.open...i/riv/nazevZdroje	Chemické listy
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	102
http://linked.open...iv/tvurceVysledku	Márová, Ivana Obruča, Stanislav Vojtová, Lucy Novotný, Marek David, Jan Piechová, Jana
http://linked.open...n/vavai/riv/zamer	Multifunkční heterogenní materiály na bázi syntetických polymerů a biopolymerů
issn	1213-7103
number of pages	2 (xsd:int)
http://localhost/t...ganizacniJednotka	26310

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