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Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes
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SYSNO ASEP 0440982 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes Tvůrce(i) Poreba, Rafal (UMCH-V) RID, ORCID
Kredatusová, Jana (UMCH-V) RID
Hodan, Jiří (UMCH-V)
Serkis, Magdalena (UMCH-V) RID
Špírková, Milena (UMCH-V) RID, ORCIDZdroj.dok. Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995
Roč. 132, č. 16 (2015), 41872_1-41872_12Poč.str. 12 Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova differential scanning calorimetry ; mechanical properties ; polyurethanes Vědní obor RIV CD - Makromolekulární chemie CEP GA13-06700S GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000348313800028 EID SCOPUS 84921478431 DOI 10.1002/app.41872 Anotace 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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2015
Počet záznamů: 1