Influence of branching density on the cross-linkability of ethylene-octene copolymers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F13%3A43869677" target="_blank" >RIV/70883521:28610/13:43869677 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/13:43869677 RIV/70883521:28150/13:43869677

Výsledek na webu

<a href="http://dx.doi.org/10.1038/pj.2012.189" target="_blank" >http://dx.doi.org/10.1038/pj.2012.189</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/pj.2012.189" target="_blank" >10.1038/pj.2012.189</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of branching density on the cross-linkability of ethylene-octene copolymers

Popis výsledku v původním jazyce

Ethylene-octene copolymers (EOCs) with two different octene contents (20 and 35 wt%) and the same melt flow index (3 g per 10 min) were cross-linked using various levels (0.3, 0.5 and 0.7 wt%) of dicumyl peroxide at different temperatures. Cross-linkingand degradation were analyzed by rubber process analyzer (RPA) within a temperature range of 150-200 °C. The highest s max (maximum elastic torque) and the lowest tan(delta) were found for EOC-20 with low-octene content at all cross-linking temperatures.Lower peroxide efficiency was observed in the case of the high-octene copolymer. Increased degradation was observed with increasing cross-linking temperature. High-octene EOC was found to be more vulnerable to degradation. According to dynamic mechanical analysis, the storage modulus (M´) and the glass transition temperature (T g) obtained from the tan(delta) peaks were found to decrease with increasing octene content. The differential scanning calorimetry (DSC) results show that the oc

Název v anglickém jazyce

Influence of branching density on the cross-linkability of ethylene-octene copolymers

Popis výsledku anglicky

Ethylene-octene copolymers (EOCs) with two different octene contents (20 and 35 wt%) and the same melt flow index (3 g per 10 min) were cross-linked using various levels (0.3, 0.5 and 0.7 wt%) of dicumyl peroxide at different temperatures. Cross-linkingand degradation were analyzed by rubber process analyzer (RPA) within a temperature range of 150-200 °C. The highest s max (maximum elastic torque) and the lowest tan(delta) were found for EOC-20 with low-octene content at all cross-linking temperatures.Lower peroxide efficiency was observed in the case of the high-octene copolymer. Increased degradation was observed with increasing cross-linking temperature. High-octene EOC was found to be more vulnerable to degradation. According to dynamic mechanical analysis, the storage modulus (M´) and the glass transition temperature (T g) obtained from the tan(delta) peaks were found to decrease with increasing octene content. The differential scanning calorimetry (DSC) results show that the oc

Druh

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

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Polymer Journal

ISSN

0032-3896

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

8

Strana od-do

651-658

Kód UT WoS článku

000319907600011

EID výsledku v databázi Scopus

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