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dc.creatorDžunuzović, Jasna
dc.creatorPergal, Marija
dc.creatorPoreba, Rafal
dc.creatorOstojić, Sanja
dc.creatorLazić, Nada
dc.creatorSpirkova, Milena
dc.creatorJovanovic, Slobodan
dc.date.accessioned2019-01-30T17:32:48Z
dc.date.available2019-01-30T17:32:48Z
dc.date.issued2012
dc.identifier.issn0888-5885
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1113
dc.description.abstractPolyurethane networks based on Boltorn hyperbranched polyesters (HBPs) of different pseudogenerations as cross-linkers, alpha,omega-dihydroxy(ethylene oxide-poly(dimethylsiloxane)-ethylene oxide) (EO-PDMS-EO) and 4,4'-methylenediphenyl diisocyanate were synthesized using a two-step polymerization reaction in solution. The influence of the pseudogeneration number of Boltorn HBPs on the thermomechanical and thermal properties and morphologies of polyurethane networks was investigated using FTIR, DMTA, TGA, hardness measurements, SEM, and SAXS. Synthesized polyurethanes showed higher cross-linking density and hardness and lower thermal stability with increasing pseudogeneration number of HBP. Samples with lower EO-PDMS-EO content exhibited slightly better thermal stability and higher hardness. All utilized characterization methods yielded consistent results and confirmed the existence of microphase separated morphology with the appearance of certain microphase mixing between segments as the pseudogeneration number of HBP increased. The obtained results revealed that the synthesized polyurethanes have good thermal and thermomechanical properties, which can be tailored by changing the pseudogeneration number of the HBP or the EO-PDMS-EO content.en
dc.publisherAmer Chemical Soc, Washington
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172062/RS//
dc.relationCzech Science Foundation (GACR) - P108/10/0195
dc.rightsrestrictedAccess
dc.sourceIndustrial and Engineering Chemistry Research
dc.titleStudies of the Thermal and Mechanical Properties of Poly(urethane-siloxane)s Cross-Linked by Hyperbranched Polyestersen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЛазић, Нада; Пореба, Рафал; Пергал, Марија; Джунузовић, Јасна; Спиркова, Милена; Јовановиц, Слободан; Остојиц, Сања;
dc.citation.volume51
dc.citation.issue33
dc.citation.spage10824
dc.citation.epage10832
dc.citation.other51(33): 10824-10832
dc.citation.rankM21
dc.identifier.doi10.1021/ie300927z
dc.identifier.rcubConv_2836
dc.identifier.scopus2-s2.0-84865510522
dc.identifier.wos000307698200010
dc.type.versionpublishedVersion


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