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Hydrolytic stability of polycarbonate-based polyurethane elastomers tested in physiologically simulated conditions
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SYSNO ASEP 0444278 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrolytic stability of polycarbonate-based polyurethane elastomers tested in physiologically simulated conditions Tvůrce(i) Serkis, Magdalena (UMCH-V) RID
Špírková, Milena (UMCH-V) RID, ORCID
Poreba, Rafal (UMCH-V) RID, ORCID
Hodan, Jiří (UMCH-V)
Kredatusová, Jana (UMCH-V) RID
Kubies, Dana (UMCH-V) RID, ORCIDZdroj.dok. Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 119, September (2015), s. 23-34Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova polyurethane ; elastomer ; hydrolytic stability Vědní obor RIV CD - Makromolekulární chemie CEP GA13-06700S GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000361255800004 EID SCOPUS 84929650643 DOI 10.1016/j.polymdegradstab.2015.04.030 Anotace The hydrolytic stability of all-aliphatic polyurethane (PU) films made from polycarbonate-based aliphatic macrodiols (MD), diisocyanate-1,6-hexane and butane-1,4-diol (BD) were tested at 37 °C in phosphate buffer for a period up to 12 months. Two macrodiols, differing in composition and chain regularity and two MD-to-BD ratios were chosen for PU synthesis. The isocyanate-to-total hydroxyl ratio was kept constant and equal to 1.05. The functional properties of the original polyurethane films and films being immersed for 1, 3, 6 and 12 months in model physiological environment (37 °C at pH = 7.4) were studied on segmental up to macroscopic levels. The combination of SEM, AFM, FTIR, DSC, tensile and swelling analyses were used. It was found that prepared PU films are very good elastomeric materials with outstanding mechanical and suitable thermal properties keeping these properties practically unchanged for a period of up to 12 months. They can be practically used for example as strong and durable topcoats. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2016
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