Počet záznamů: 1
Effect of dilution on structure and properties of polyurethane networks. Pregel and postgel cyclization and phase separation
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SYSNO ASEP 0346545 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of dilution on structure and properties of polyurethane networks. Pregel and postgel cyclization and phase separation Tvůrce(i) Dušková-Smrčková, Miroslava (UMCH-V) RID
Valentová, H. (CZ)
Ďuračková, Andrea (UMCH-V)
Dušek, Karel (UMCH-V) RID, ORCIDZdroj.dok. Macromolecules. - : American Chemical Society - ISSN 0024-9297
Roč. 43, č. 15 (2010), s. 6450-6462Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova network formation ; cyclization ; gelation Vědní obor RIV JI - Kompozitní materiály CEP GA106/08/1409 GA ČR - Grantová agentura ČR CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000280743300028 DOI 10.1021/ma100626d Anotace Bi-, tri-, and tetrafunctional star-shaped polyol precursors were cross-linked with a star-shaped triisocyanate and the effect of the presence of diluent during network formation on the gel-point conversion, alpha(crit), and on the equilibrium elastic modulus was studied. A linear correlation was found between the shift of the gel-point conversion and the change of intermolecular conversion corresponding to experimental changes of the concentration of EANCs. The dependence of the concentration of EANCs on intermolecular conversion was obtained by branching theory. It has been shown that it is possible to estimate the decrease of effective cross-link density caused by dilution during network formation from the shift of the gel-point conversion. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2011
Počet záznamů: 1