Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU132992" target="_blank" >RIV/00216305:26620/19:PU132992 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S014139101930254X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S014139101930254X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymdegradstab.2019.108934" target="_blank" >10.1016/j.polymdegradstab.2019.108934</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique
Popis výsledku v původním jazyce
The effect of radical scavengers on the control of beta-scission of polypropylene (PP) during the free-radical grafting with maleic anhydride (MAH) in melt was investigated. The main interest was the evaluation of the effective concentration of radical scavengers Irganox 1010 (IRN1010) and Irgafos 168 (IRF168) for better control of grafting process. For this purpose, radical grafting of non-stabilized PP was performed in order to describe specifically the effect of proposed additives with no effect of additives in commercial PP grades. For this purpose, the influence of the initial concentration of IRN1010 ([1RN1010](0)) on the reaction course was predicted with respect to the change of kinetic parameters, thermal and rheological properties of PP-g-MAH. Obtained results showed that the efficiency of IRN1010 and IRF168 is not proportional to their concentration above critical level as evidenced by rheological properties of PP-g-MAH. Above that point, both the grafting efficiency and grafting rate decrease and thus the determination of effective CIRN1010 is the key for approaching controlled radical grafting of PP. (C) 2019 Elsevier Ltd. All rights reserved.
Název v anglickém jazyce
Controlled reactive modification of polypropylene with maleic anhydride via solvent-free technique
Popis výsledku anglicky
The effect of radical scavengers on the control of beta-scission of polypropylene (PP) during the free-radical grafting with maleic anhydride (MAH) in melt was investigated. The main interest was the evaluation of the effective concentration of radical scavengers Irganox 1010 (IRN1010) and Irgafos 168 (IRF168) for better control of grafting process. For this purpose, radical grafting of non-stabilized PP was performed in order to describe specifically the effect of proposed additives with no effect of additives in commercial PP grades. For this purpose, the influence of the initial concentration of IRN1010 ([1RN1010](0)) on the reaction course was predicted with respect to the change of kinetic parameters, thermal and rheological properties of PP-g-MAH. Obtained results showed that the efficiency of IRN1010 and IRF168 is not proportional to their concentration above critical level as evidenced by rheological properties of PP-g-MAH. Above that point, both the grafting efficiency and grafting rate decrease and thus the determination of effective CIRN1010 is the key for approaching controlled radical grafting of PP. (C) 2019 Elsevier Ltd. All rights reserved.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
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OECD FORD obor
10404 - Polymer science
Návaznosti výsledku
Projekt
<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
POLYMER DEGRADATION AND STABILITY
ISSN
0141-3910
e-ISSN
1873-2321
Svazek periodika
neuveden
Číslo periodika v rámci svazku
168
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
1-8
Kód UT WoS článku
000491303600001
EID výsledku v databázi Scopus
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