Heterogeneity of accelerated photooxidation in commodity polymers stabilized by HAS: ESRI, IR, and MH study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00427368" target="_blank" >RIV/61389013:_____/14:00427368 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.polymdegradstab.2014.02.019" target="_blank" >http://dx.doi.org/10.1016/j.polymdegradstab.2014.02.019</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymdegradstab.2014.02.019" target="_blank" >10.1016/j.polymdegradstab.2014.02.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heterogeneity of accelerated photooxidation in commodity polymers stabilized by HAS: ESRI, IR, and MH study

Popis výsledku v původním jazyce

Heterogeneity of the photooxidation processes in plaques made of four commodity polymers, polypropylene (PP), polyethylene (PE), polystyrene (PS) and poly(ethylene-co-norbornene) (Topas, TP) stabilized with hindered amine stabilizer (HAS) were studied using Electron Spin Resonance Imaging (ESRI) and three independent microscopic-scale methods: scanning electron microscopy (SEM), infrared microscopy (IR) and microhardness (MH). Concentration profiles of nitroxides mapping photooxidation process inside polymer plaques along the direction perpendicular to their surface were determined by electron spin resonance imaging technique (ESRI) in dependence on the duration of accelerated photooxidation. We present data characterizing stabilization activity of Chimassorb 119, Chimassorb 944, Tinuvin 770 in combination with UV stabilizer Tinuvin 320 or Tinuvin 327, nitroxide HAS Prostab 5415, and alkoxyamine derivative of HAS Tinuvin NOR 371 and compare them with the previously published data. Comp

Název v anglickém jazyce

Heterogeneity of accelerated photooxidation in commodity polymers stabilized by HAS: ESRI, IR, and MH study

Popis výsledku anglicky

Heterogeneity of the photooxidation processes in plaques made of four commodity polymers, polypropylene (PP), polyethylene (PE), polystyrene (PS) and poly(ethylene-co-norbornene) (Topas, TP) stabilized with hindered amine stabilizer (HAS) were studied using Electron Spin Resonance Imaging (ESRI) and three independent microscopic-scale methods: scanning electron microscopy (SEM), infrared microscopy (IR) and microhardness (MH). Concentration profiles of nitroxides mapping photooxidation process inside polymer plaques along the direction perpendicular to their surface were determined by electron spin resonance imaging technique (ESRI) in dependence on the duration of accelerated photooxidation. We present data characterizing stabilization activity of Chimassorb 119, Chimassorb 944, Tinuvin 770 in combination with UV stabilizer Tinuvin 320 or Tinuvin 327, nitroxide HAS Prostab 5415, and alkoxyamine derivative of HAS Tinuvin NOR 371 and compare them with the previously published data. Comp

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BO - Biofyzika

OECD FORD obor

—

Projekt

<a href="/cs/project/GA202%2F09%2F2078" target="_blank" >GA202/09/2078: Bioinspirované nanočástice reagující na změny vnějšího prostředí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Degradation and Stability

ISSN

0141-3910

e-ISSN

—

Svazek periodika

103

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

11-25

Kód UT WoS článku

000336006300002

EID výsledku v databázi Scopus

—