Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes

Poreba, Rafal; Kredatusová, Jana; Hodan, Jiří; Serkis, Magdalena; Špírková, Milena

doi:https://dx.doi.org/10.1002/app.41872

Number of the records: 1

Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes

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SYSNO ASEP	0440982
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes
Author(s)	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, ORCID}
Source Title	Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995 Roč. 132, č. 16 (2015), 41872_1-41872_12
Number of pages	12
Language	eng - English
Country	US - United States
Keywords	differential scanning calorimetry ; mechanical properties ; polyurethanes
Subject RIV	CD - Macromolecular Chemistry
R&D Projects	GA13-06700S GA ČR - Czech Science Foundation (CSF)
Institutional support	UMCH-V - RVO:61389013
UT WOS	000348313800028
EID SCOPUS	84921478431
DOI	10.1002/app.41872
Annotation	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.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2015

Number of the records: 1