Modelling the morphology evolution of polymer materials undergoing phase separation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F12%3A43893861" target="_blank" >RIV/60461373:22340/12:43893861 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.cej.2012.06.091" target="_blank" >http://dx.doi.org/10.1016/j.cej.2012.06.091</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2012.06.091" target="_blank" >10.1016/j.cej.2012.06.091</a>

Result language

angličtina

Original language name

Modelling the morphology evolution of polymer materials undergoing phase separation

Original language description

High impact polystyrene (HIPS) is a selected representative of hetero-phase polymers with double-emulsion (or 'salami') morphology, because it consists of the continuous polystyrene (PS) phase with dispersed micron-sized polybutadiene (PB) particles containing submicron occlusions of the partially grafted copolymer (PB-g-PS). Our modelling addresses the weakest point of the Cahn-Hilliard model applied to HIPS evolution: the Ostwald ripening, which is in reality suppressed or reduced by grafting. Phase inversion is the most critical but so far least-modelled step in double-emulsion morphology evolution. Therefore we demonstrate the modelling of all three experimentally observed mechanisms of double-emulsion formation: (i) encapsulation of PS particles into PB domains by shear forces, (ii) thermodynamically consistent reaction-induced phase separation, and (iii) preservation of graft-stabilized PS particles through the phase inversion. We stress out the requirement of proper setting of t

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2012

Confidentiality

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

Name of the periodical

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

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Volume of the periodical

207

Issue of the periodical within the volume

NEUVEDEN

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

895-905

UT code for WoS article

000311184500094

EID of the result in the Scopus database

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