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The structure and thermal properties of novel polyurethane/organoclay nanocomposites obtained by pre-polymerization
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SYSNO ASEP 0390519 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The structure and thermal properties of novel polyurethane/organoclay nanocomposites obtained by pre-polymerization Tvůrce(i) Pavličević, J. (RS)
Špírková, Milena (UMCH-V) RID, ORCID
Jovičić, M. (RS)
Bera, O. (RS)
Poreba, Rafal (UMCH-V) RID, ORCID
Budinski-Simendic, J. (RS)Zdroj.dok. Composites Part B-Engineering. - : Elsevier - ISSN 1359-8368
Roč. 45, č. 1 (2013), s. 232-238Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova layered structures ; polymer–matrix composites (PMCs) ; thermal properties Vědní obor RIV CD - Makromolekulární chemie CEP GAP108/10/0195 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000314193200025 DOI 10.1016/j.compositesb.2012.09.018 Anotace All aliphatic polycarbonate-based polyurethanes (PC-PUs) and their layered-silicate nanocomposites were synthesized by pre-polymerization procedure. Hard domains of materials prepared in the form of films consist of hexamethylene-diisocyanate and 1,4-butane diol (chain extender). Two polycarbonate diols differing in chain constitution were used as soft segments. The ratio (R) of OH groups belonging to the diol and the chain extender, as well as hard segment content (HS) was kept constant (R = 1 and HS = 30 wt.%). For nanocomposites preparation, organically modified montmorillonite and bentonite were used (1 wt.%). FTIR was performed to investigate hydrogen bonding formation and degree of phase separation. The micro-phase structure of obtained polyurethanes was studied using SAXS. The influence of morphology and phase behavior of prepared elastomers was estimated combining WAXD and DSC. Thermal properties of PC-PU hybrid materials are found to be influenced by dispersion of nanofillers with layered structure. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2013
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