About: Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin

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About: Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this work we investigated the degradation process of polyether polyol based polyurethane (PUR) elastomeric films in the presence of a mixed thermophilic culture as a model of a natural bacterial consortium. The presence of PUR material in cultivation medium resulted in delayed but intensive growth of the bacterial culture. The unusually long lag phase was caused by the release of unreacted polyether polyol and tin catalyst from the material. The lag phase was significantly shortened and the biodegradability of PUR materials was enhanced by partial replacement (10%) of polyether polyol with biopolymers (carboxymethyl cellulose, hydroxyethyl cellulose, acetyl cellulose and actylated starch). The process of material degradation consisted of two steps. First, the materials were mechanically disrupted and, second, the bacterial culture was able to utilize abiotic degradation products, which resulted in supported bacterial growth. Direct utilization of PUR by the bacterial culture was observed as well, b In this work we investigated the degradation process of polyether polyol based polyurethane (PUR) elastomeric films in the presence of a mixed thermophilic culture as a model of a natural bacterial consortium. The presence of PUR material in cultivation medium resulted in delayed but intensive growth of the bacterial culture. The unusually long lag phase was caused by the release of unreacted polyether polyol and tin catalyst from the material. The lag phase was significantly shortened and the biodegradability of PUR materials was enhanced by partial replacement (10%) of polyether polyol with biopolymers (carboxymethyl cellulose, hydroxyethyl cellulose, acetyl cellulose and actylated starch). The process of material degradation consisted of two steps. First, the materials were mechanically disrupted and, second, the bacterial culture was able to utilize abiotic degradation products, which resulted in supported bacterial growth. Direct utilization of PUR by the bacterial culture was observed as well, b (en)
Title	Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin (en)
skos:prefLabel	Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin Biodegradation of polyether polyol based polyurethane elastomeric films influence of partial replacement of polyether polyol by biopolymers of renewable origin (en)
skos:notation	RIV/00216305:26310/11:PU93034!RIV12-MSM-26310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021630501)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Márová, Ivana Obruča, Stanislav
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	188278
http://linked.open...ai/riv/idVysledku	RIV/00216305:26310/11:PU93034
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Biodegradation, polyurethanes, biopolymers (en)
http://linked.open.../riv/klicoveSlovo	Biodegradation biopolymers polyurethanes
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[9E6F46DA4477]
http://linked.open...i/riv/nazevZdroje	ENVIRONMENTAL TECHNOLOGY
http://linked.open...in/vavai/riv/obor	EI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	31
http://linked.open...iv/tvurceVysledku	Márová, Ivana Obruča, Stanislav Vojtová, Lucy
http://linked.open...n/vavai/riv/zamer	Multifunkční heterogenní materiály na bázi syntetických polymerů a biopolymerů
issn	0959-3330
number of pages	10 (xsd:int)
http://localhost/t...ganizacniJednotka	26310

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