About: Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Macroscopic thermal and mechanical properties of complex aliphatic polycarbonate-based polyurethane (PU) films containing degradable ester units in PU backbone were studied by a combination of several experimental techniques. Differential scanning calorimetry (DSC) revealed that the synthesized oligomeric diol (DL-L) contributes (in addition to polycarbonate diol) to the formation of soft-segment domains, while the hard-segment domains are formed from 1,6-diisocyanatohexane (HDI) and butane-1,4-diol (BD). Three main phase transitions were detected by DSC and by dynamic mechanical thermal analysis. Thermogravimetric analysis (TGA) of two-component PUs showed that the PU made from DL-L and HDI is the least thermostable product, while the PU made from polycarbonate diol and HDI is the most stable one. The differences in the thermal stability of different four-component PUs are not important. Tensile properties very sensitively reflect the changes in composition and in microstructure of PU samples; the best tensile properties exhibits the degradable sample containing the equimolar ratio of hydroxyl groups of macrodiol, oligomeric diol DL-L and butane-1,4-diol. Macroscopic thermal and mechanical properties of complex aliphatic polycarbonate-based polyurethane (PU) films containing degradable ester units in PU backbone were studied by a combination of several experimental techniques. Differential scanning calorimetry (DSC) revealed that the synthesized oligomeric diol (DL-L) contributes (in addition to polycarbonate diol) to the formation of soft-segment domains, while the hard-segment domains are formed from 1,6-diisocyanatohexane (HDI) and butane-1,4-diol (BD). Three main phase transitions were detected by DSC and by dynamic mechanical thermal analysis. Thermogravimetric analysis (TGA) of two-component PUs showed that the PU made from DL-L and HDI is the least thermostable product, while the PU made from polycarbonate diol and HDI is the most stable one. The differences in the thermal stability of different four-component PUs are not important. Tensile properties very sensitively reflect the changes in composition and in microstructure of PU samples; the best tensile properties exhibits the degradable sample containing the equimolar ratio of hydroxyl groups of macrodiol, oligomeric diol DL-L and butane-1,4-diol. (en)
Title	Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes (en)
skos:prefLabel	Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes (en)
skos:notation	RIV/61389013:_____/15:00440982!RIV15-GA0-61389013
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-06700S)
http://linked.open...iv/cisloPeriodika	16
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Serkis, Magdalena Hodan, Jiří Špírková, Milena Kredatusová, Jana Poreba, Rafal
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	463
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/15:00440982
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	differential scanning calorimetry; mechanical properties; polyurethanes (en)
http://linked.open.../riv/klicoveSlovo	mechanical properties differential scanning calorimetry polyurethanes
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[48B3F4004C0C]
http://linked.open...i/riv/nazevZdroje	Journal of Applied Polymer Science
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Multifunctional highly elastic polymeric materials with controlled biodegradability
http://linked.open...UplatneniVysledku	2015
http://linked.open...v/svazekPeriodika	132
http://linked.open...iv/tvurceVysledku	Špírková, Milena Poreba, Rafal Kredatusová, Jana Hodan, Jiří Serkis, Magdalena
http://linked.open...ain/vavai/riv/wos	000348313800028
issn	0021-8995
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/app.41872

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