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Statements

Subject Item
n2:RIV%2F61389013%3A_____%2F15%3A00440982%21RIV15-GA0-61389013
rdf:type
skos:Concept n14:Vysledek
dcterms: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.
dcterms:title
Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes
skos:prefLabel
Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes
skos:notation
RIV/61389013:_____/15:00440982!RIV15-GA0-61389013
n3:aktivita
n8:I n8:P
n3:aktivity
I, P(GA13-06700S)
n3:cisloPeriodika
16
n3:dodaniDat
n9:2015
n3:domaciTvurceVysledku
n7:6934404 n7:5976332 Poreba, Rafal n7:8168911 n7:4978730
n3:druhVysledku
n5:J
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
463
n3:idVysledku
RIV/61389013:_____/15:00440982
n3:jazykVysledku
n16:eng
n3:klicovaSlova
differential scanning calorimetry; mechanical properties; polyurethanes
n3:klicoveSlovo
n10:mechanical%20properties n10:polyurethanes n10:differential%20scanning%20calorimetry
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[48B3F4004C0C]
n3:nazevZdroje
Journal of Applied Polymer Science
n3:obor
n17:CD
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n15:GA13-06700S
n3:rokUplatneniVysledku
n9:2015
n3:svazekPeriodika
132
n3:tvurceVysledku
Kredatusová, Jana Hodan, Jiří Poreba, Rafal Špírková, Milena Serkis, Magdalena
n3:wos
000348313800028
s:issn
0021-8995
s:numberOfPages
12
n13:doi
10.1002/app.41872