Coalescence during annealing of quiescent immiscible polymer blends

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00358512" target="_blank" >RIV/61389013:_____/11:00358512 - isvavai.cz</a>

Result on the web

<a href="http://www.e-polymers.org/journal/papers/bdimzoski_010311.pdf" target="_blank" >http://www.e-polymers.org/journal/papers/bdimzoski_010311.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Coalescence during annealing of quiescent immiscible polymer blends

Original language description

Coalescence during annealing of quiescent immiscible polymer blends, containing polypropylene matrix and different amount of ethylene-propylene copolymer (EPR) as dispersed phase, was studied. Comparison of experimental results with available coalescencetheories revealed that changes in the phase structure after 20 min annealing can be precisely estimated using the approximate theory of coalescence induced by van der Waals forces and considering drainage of the matrix film between spherical droplets. All results evidenced growth of the EPR droplet size with the annealing time and temperature; increase in the content of dispersed phase contributed to higher growth rate of the dispersed phase, more pronounced at the coalescence origin. Anisometry of theEPR droplets and droplet shape relaxation were perceived, both interfering the course of coalescence. Enhanced elasticity of examined blends at low frequencies and positive deviation of the complex viscosity from the linear mixing rules

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

BJ - Thermodynamics

OECD FORD branch

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Project

<a href="/en/project/IAA200500903" target="_blank" >IAA200500903: The effects of coalescence and crystallization on the phase structure evolution at cooling of polymer blends</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

E-Polymers

ISSN

1618-7229

e-ISSN

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Volume of the periodical

-

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

1-12

UT code for WoS article

000288656300002

EID of the result in the Scopus database

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