About: Spatial profiling of degradation processes in hindered-amine-stabilized polymers by electron spin resonance imaging of nitroxides     Goto   Sponge   NotDistinct   Permalink

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Description
  • Odlišné tvary koncentračních profilů nitroxidů pozorované v polypropylenových a polystyrenových destičkách stabilizovaných stericky stíněnými aminy a podrobených fotodegradaci mohou byly vysvětleny jako výsledek superposice vlivu difúzně limitované oxidace, jejímž důsledkem je nízká koncentrace nitroxidů uvnitř destiček, a vlivu odlišné transparentnosti polypropylenových a polystyrenových destiček, jejímž důsledkem jsou odlišné koncentrační gradienty fotoaktivovaných degradačních center v polypropylenu a v polystyrenu. (cs)
  • The different shapes of nitroxide concentration profiles observed in polypropylene and in polystyrene plaques stabilized by hindered amines and subjected to photodegradation can be interpreted as a result of a superposition of the effect of the diffusion-limited oxidation, which is responsible for the low nitroxide concentration in the polymer bulk, and the effect of different transparency of polypropylene and polystyrene plaques resulting in the different concentration gradients of photoactivated degradation centers in polypropylene and in polystyrene.
  • The different shapes of nitroxide concentration profiles observed in polypropylene and in polystyrene plaques stabilized by hindered amines and subjected to photodegradation can be interpreted as a result of a superposition of the effect of the diffusion-limited oxidation, which is responsible for the low nitroxide concentration in the polymer bulk, and the effect of different transparency of polypropylene and polystyrene plaques resulting in the different concentration gradients of photoactivated degradation centers in polypropylene and in polystyrene. (en)
Title
  • Spatial profiling of degradation processes in hindered-amine-stabilized polymers by electron spin resonance imaging of nitroxides
  • Prostorové rozlišení degradačních procesů v polymerech stabilizovaných stericky stíněnými aminy technikou prostorového zobrazení ESR nitroxidů (cs)
  • Spatial profiling of degradation processes in hindered-amine-stabilized polymers by electron spin resonance imaging of nitroxides (en)
skos:prefLabel
  • Spatial profiling of degradation processes in hindered-amine-stabilized polymers by electron spin resonance imaging of nitroxides
  • Prostorové rozlišení degradačních procesů v polymerech stabilizovaných stericky stíněnými aminy technikou prostorového zobrazení ESR nitroxidů (cs)
  • Spatial profiling of degradation processes in hindered-amine-stabilized polymers by electron spin resonance imaging of nitroxides (en)
skos:notation
  • RIV/61389013:_____/05:00021623!RIV06-AV0-61389013
http://linked.open.../vavai/riv/strany
  • 195;198
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika
  • S
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http://linked.open...aciTvurceVysledku
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http://linked.open...titaPredkladatele
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  • 543791
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  • RIV/61389013:_____/05:00021623
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  • polymer degradation; nitroxides; electron spin resonance imaging (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [9EA2BDF627F3]
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  • Chemické listy
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 99
http://linked.open...iv/tvurceVysledku
  • Pfleger, Jiří
  • Pospíšil, Jan
  • Pilař, Jan
  • Kaprálková, Ludmila
  • Marek, Antonín
http://linked.open...n/vavai/riv/zamer
issn
  • 0009-2770
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