Počet záznamů: 1
Structure-property correlation study of novel poly(urethane-ester-siloxane) networks
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SYSNO ASEP 0393373 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Structure-property correlation study of novel poly(urethane-ester-siloxane) networks Tvůrce(i) Pergal, M. V. (RS)
Džunuzović, J. V. (RS)
Poreba, Rafal (UMCH-V) RID, ORCID
Steinhart, Miloš (UMCH-V) RID
Pergal, M. M. (RS)
Vodnik, V. V. (RS)
Špírková, Milena (UMCH-V) RID, ORCIDZdroj.dok. Industrial and Engineering Chemistry Research. - : American Chemical Society - ISSN 0888-5885
Roč. 52, č. 18 (2013), s. 6164-6176Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova urethane-siloxane copolymers ; hyperbranched polyester ; mechanical-properties Vědní obor RIV CD - Makromolekulární chemie CEP GAP108/10/0195 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000318838900012 DOI 10.1021/ie400467j Anotace Novel poly(urethane-ester-siloxane) networks, based on hydroxypropyl terminated poly(dimethylsiloxane) (PDMS), 4,4'-methylenediphenyl diisocyanate, and hyperbranched polyesters (HBPs) of the second and third pseudogenerations, were synthesized by two-step polymerization. The effects of the PDMS content and pseudogeneration number of HBPs on the structural, thermomechanical, thermal, and surface properties of polyurethanes were investigated. Thermomechanical and thermal properties of polyurethanes and FTIR, SAXS, and SEM results indicated good microphase separated structure. SAXS data suggested that the difference in the HBP pseudogeneration number affects only the global properties of the structure and is much less pronounced than the dependence on the PDMS content, while local properties depend only on the PDMS content. Surface characterization of samples indicated the slightly amphiphilic nature of polyurethanes. The results revealed that the synthesized polyurethanes have good thermal, thermomechanical, and surface properties, which can be tuned and adjusted for coating application by changing the PDMS content or type of the HBP. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2014
Počet záznamů: 1