Modelling of high-impact polystyrene evolution using the Cahn-Hilliard approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F11%3A43891916" target="_blank" >RIV/60461373:22340/11:43891916 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of high-impact polystyrene evolution using the Cahn-Hilliard approach

Popis výsledku v původním jazyce

The high-impact polystyrene (HIPS) is produced by the free radical polymerization of styrene in the presence of polybutadiene (PB). The formed PS is highly incompatible with the PB. At low conversion of styrene a phase separation takes place by mechanisms of nucleation or spinodal decomposition. The emerging phases are in thermodynamic equlibrium but increasing amount of PS in the system, grafting of the styrene onto the PB backbone, stirring of the mixture and interfacial forces lead to further morphology evolution. The morphology of HIPS can be desribed on two levels, (i) the micron sized PB domains distributed through the continuous PS phase, (ii) submicron PS occlusions inside the PB domains. This morphology is also known as the "salami" morphology. The model is based upon the modified Cahn-Hilliard equations and attempts to qualitatively describe the morphology evolution of the "salami" morphology of HIPS. Our model takes into account the reaction of styrene, polymer grafting, she

Název v anglickém jazyce

Modelling of high-impact polystyrene evolution using the Cahn-Hilliard approach

Popis výsledku anglicky

The high-impact polystyrene (HIPS) is produced by the free radical polymerization of styrene in the presence of polybutadiene (PB). The formed PS is highly incompatible with the PB. At low conversion of styrene a phase separation takes place by mechanisms of nucleation or spinodal decomposition. The emerging phases are in thermodynamic equlibrium but increasing amount of PS in the system, grafting of the styrene onto the PB backbone, stirring of the mixture and interfacial forces lead to further morphology evolution. The morphology of HIPS can be desribed on two levels, (i) the micron sized PB domains distributed through the continuous PS phase, (ii) submicron PS occlusions inside the PB domains. This morphology is also known as the "salami" morphology. The model is based upon the modified Cahn-Hilliard equations and attempts to qualitatively describe the morphology evolution of the "salami" morphology of HIPS. Our model takes into account the reaction of styrene, polymer grafting, she

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F11%2F1069" target="_blank" >GAP106/11/1069: Rozpad a koalescence kapek v tekoucích směsích nemísitelných polymerů</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

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

38th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-3503-2

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

44-53

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

23. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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