About: PET scrap ? possible base material for biodegradable polymers

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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	Poly(ethylene terephthalate) (PETP) from disposed beverage bottles was used as a secondary material for the preparation of aromatic-aliphatic copolyesters. Through a solvolysis of PETP by an aqueous solution of L-lactic acid, a mixture of low-molar-mass aromatic-aliphatic esters is formed; the polycondensation (at 250 oC) of this mixture yields copolyesters, biologically degradable uder both aerobic and anaerobic conditions. In order to test the anaerobic degradability of the copolyesters, sludge from waste water treatment plant was used as an inoculum. The development of the degradation was monitored as a change of the molecular structure of the copolyesters. Their decomposition through the effect of a mixed culture of microorganisms included in the medium used was accompanied by an intensive release of biogas. The test of the ecotoxicity based on the germinating capacity of the Sinapis alba seeds showed a harmlessness of the degradation products of the copolyester. Poly(ethylene terephthalate) (PETP) from disposed beverage bottles was used as a secondary material for the preparation of aromatic-aliphatic copolyesters. Through a solvolysis of PETP by an aqueous solution of L-lactic acid, a mixture of low-molar-mass aromatic-aliphatic esters is formed; the polycondensation (at 250 oC) of this mixture yields copolyesters, biologically degradable uder both aerobic and anaerobic conditions. In order to test the anaerobic degradability of the copolyesters, sludge from waste water treatment plant was used as an inoculum. The development of the degradation was monitored as a change of the molecular structure of the copolyesters. Their decomposition through the effect of a mixed culture of microorganisms included in the medium used was accompanied by an intensive release of biogas. The test of the ecotoxicity based on the germinating capacity of the Sinapis alba seeds showed a harmlessness of the degradation products of the copolyester. (en)
Title	PET scrap ? possible base material for biodegradable polymers PET scrap ? possible base material for biodegradable polymers (en)
skos:prefLabel	PET scrap ? possible base material for biodegradable polymers PET scrap ? possible base material for biodegradable polymers (en)
skos:notation	RIV/60461373:22320/08:00019614!RIV13-GA0-22320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/06/0528), Z(MSM6046137302), Z(MSM6046137308)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Šmejkalová, Pavla Keclík, František
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 technologie ochrany prostředí
http://linked.open...dnocenehoVysledku	386399
http://linked.open...ai/riv/idVysledku	RIV/60461373:22320/08:00019614
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	poly(ethylene terephthalate), aromatic-aliphatic copolyesters, anaerobic biodegradation (en)
http://linked.open.../riv/klicoveSlovo	anaerobic biodegradation aromatic-aliphatic copolyesters poly(ethylene terephthalate)
http://linked.open...ontrolniKodProRIV	[16C078F6E454]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	12th Conference on Environment and Mineral Processing
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Aliphatic and aliphatic-aromatic copolyesters and their biodegradation
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Šmejkalová, Pavla Prokopová, Irena Keclík, František Hyniová, Zuzana
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2008-06-05 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Preparation and research of functional materials and material technologies using micro- and nanoscopic methods The study of chemical biological processes for the environmental protection
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Vysoká škola báňská - Technická univerzita Ostrava
https://schema.org/isbn	978-80-248-1775-0
http://localhost/t...ganizacniJednotka	22320
is http://linked.open...avai/riv/vysledek of	PET scrap ? possible base material for biodegradable polymers

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