Diluent Induced Cyclization and Phase Separation in Polymer Networks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10104627" target="_blank" >RIV/00216208:11320/11:10104627 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/11:00366161

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/masy.201000133/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/masy.201000133/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/masy.201000133" target="_blank" >10.1002/masy.201000133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diluent Induced Cyclization and Phase Separation in Polymer Networks

Popis výsledku v původním jazyce

The effect of the presence of diluent during network formation on the gelpoint conversion and on the equilibrium elastic modulus was studied using polyurethane networks from star-shaped polyols and a star-shaped triisocyanate. The decrease of the equilibrium modulus and the concentration of elastically active network chains in dependence on the volume fraction of polymerizable compounds (solids) was curved downwards and extrapolated to the limiting dilution of the system at which no gel was formed whenthe conversion of functional groups was 100%. Some samples exhibited phase separation in the form of macrosyneresis. The continuous change of gel volume as a result of phase separation was obtained by solving an integral equation respecting the thermodynamic stability of the system. The change of the concentration of EANCs obtained from equilibrium modulus was translated into the intermolecular conversion calculated using the branching theory. The intermolecular conversion depended linea

Název v anglickém jazyce

Diluent Induced Cyclization and Phase Separation in Polymer Networks

Popis výsledku anglicky

The effect of the presence of diluent during network formation on the gelpoint conversion and on the equilibrium elastic modulus was studied using polyurethane networks from star-shaped polyols and a star-shaped triisocyanate. The decrease of the equilibrium modulus and the concentration of elastically active network chains in dependence on the volume fraction of polymerizable compounds (solids) was curved downwards and extrapolated to the limiting dilution of the system at which no gel was formed whenthe conversion of functional groups was 100%. Some samples exhibited phase separation in the form of macrosyneresis. The continuous change of gel volume as a result of phase separation was obtained by solving an integral equation respecting the thermodynamic stability of the system. The change of the concentration of EANCs obtained from equilibrium modulus was translated into the intermolecular conversion calculated using the branching theory. The intermolecular conversion depended linea

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/GA106%2F08%2F1409" target="_blank" >GA106/08/1409: Role struktury sesíťované polymerní matrice v částicovém kompozitu. Víceúrovňové modelování a experimentální ověření.</a><br>

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Macromolecular Symposia

ISSN

1022-1360

e-ISSN

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Svazek periodika

306-307

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

67-76

Kód UT WoS článku

000298857300008

EID výsledku v databázi Scopus

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