About: The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites

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About: The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://web.a.ebscohost.com/ehost/pdfviewer/pdfviewer?vid=3&sid=d305bc8b-7dcc-4498-be1b-70d5a53b1c00%
Description	Polycarbonate-based polyurethane (PC-PUs) hybrid materials were obtained by the addition of organically modified bentonite and montmorillonite (1 w/w %). PC-PUs and their nanocomposites were prepared using prepolymerization with two polycarbonate diols (both of Mr ca 1000) differing in chain constitution, hexamethylene-diisocyanate and 1,4-butane diol (chain extender) as starting components. All samples contained the same hard-segment content (30 w/w %). Thermogravimetry coupled with differential scanning calorimetry (TG-DSC) was performed to obtain information about the organoclays addition on the thermal stability of the prepared polyurethane elastomers. The effect of bentonite and montmorillonite nanofillers on the decomposition pattern has been evaluated. By deconvolution of derivative thermogravimetric (DTG) curves, it has been found that the thermal decomposition of polyurethane samples takes place in three overlapping processes. Degradation kinetic parameters (activation energy and reaction order) were calculated on the basis of thermal data obtained at only one heating rate. Polycarbonate-based polyurethane (PC-PUs) hybrid materials were obtained by the addition of organically modified bentonite and montmorillonite (1 w/w %). PC-PUs and their nanocomposites were prepared using prepolymerization with two polycarbonate diols (both of Mr ca 1000) differing in chain constitution, hexamethylene-diisocyanate and 1,4-butane diol (chain extender) as starting components. All samples contained the same hard-segment content (30 w/w %). Thermogravimetry coupled with differential scanning calorimetry (TG-DSC) was performed to obtain information about the organoclays addition on the thermal stability of the prepared polyurethane elastomers. The effect of bentonite and montmorillonite nanofillers on the decomposition pattern has been evaluated. By deconvolution of derivative thermogravimetric (DTG) curves, it has been found that the thermal decomposition of polyurethane samples takes place in three overlapping processes. Degradation kinetic parameters (activation energy and reaction order) were calculated on the basis of thermal data obtained at only one heating rate. (en)
Title	The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites (en)
skos:prefLabel	The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites The influence of bentonite and montmorillonite addition on the thermal decomposition of novel polyurethane/organoclay nanocomposites (en)
skos:notation	RIV/61389013:_____/13:00424641!RIV14-GA0-61389013
http://linked.open...avai/predkladatel	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/10/0195)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Špírková, Milena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	79674
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/13:00424641
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polycarbonate-based polyurethane nanocomposites; layered silicates; DTG (en)
http://linked.open.../riv/klicoveSlovo	layered silicates polycarbonate-based polyurethane nanocomposites DTG
http://linked.open...odStatuVydavatele	MK - Bývalá jugoslávská republika Makedonie
http://linked.open...ontrolniKodProRIV	[0A5B93102DC7]
http://linked.open...i/riv/nazevZdroje	Macedonian Journal of Chemistry and Chemical Engineering
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Novel multicomponent polyurethanes – synthesis, characterization
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	32
http://linked.open...iv/tvurceVysledku	Špírková, Milena Bera, O. Budinski-Simendic, J. Jovičić, M. Pavličević, J. Mészáros Szécsényi, K.
http://linked.open...ain/vavai/riv/wos	000329266800009
issn	1857-5552
number of pages	12 (xsd:int)

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