The structure and thermal properties of novel polyurethane/organoclay nanocomposites obtained by pre-polymerization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F13%3A00390519" target="_blank" >RIV/61389013:_____/13:00390519 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.compositesb.2012.09.018" target="_blank" >http://dx.doi.org/10.1016/j.compositesb.2012.09.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compositesb.2012.09.018" target="_blank" >10.1016/j.compositesb.2012.09.018</a>

Result language
angličtina
Original language name
The structure and thermal properties of novel polyurethane/organoclay nanocomposites obtained by pre-polymerization
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
<a href="/en/project/GAP108%2F10%2F0195" target="_blank" >GAP108/10/0195: Novel multicomponent polyurethanes ? synthesis, characterization</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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