Show simple item record

dc.creatorPergal, Marija
dc.creatorStefanović, Ivan
dc.creatorGođevac, Dejan
dc.creatorAntić, Vesna
dc.creatorMilačić, Vesna
dc.creatorOstojić, Sanja
dc.creatorRogan, Jelena R.
dc.creatorĐonlagić, Jasna
dc.date.accessioned2019-01-30T17:42:13Z
dc.date.available2019-01-30T17:42:13Z
dc.date.issued2014
dc.identifier.issn0352-5139
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1561
dc.description.abstractIn this study, the synthesis, structure and physical properties of two series of thermoplastic polyurethanes based on hydroxypropyl-terminated poly(dimethylsiloxane) (HP-PDMS) or hydroxyethoxypropyl-terminated poly(dimethylsiloxane) (EO-PDMS) as soft segments, and 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments were investigated. The polyurethanes were synthesized by two-step polyaddition in solution. The effects of the type and content of PDMS segments on the structure, thermal and surface properties of copolymers were studied by H-1-, C-13-nuclear magnetic resonance (NMR) spectroscopy and two-dimensional NMR spectroscopies (heteronuclear multiple bond correlation (HMBC) and rotating-frame nuclear Overhauser effect (ROESY)), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), wide-angle X-ray scattering (WAXS), scanning electron microscopy (SEM) and water contact angle and water absorption measurements. Thermal properties investigated by DSC indicated that the presence of soft PDMS segments lowers the glass transition and melting temperatures of the hard phase as well as the degree of crystallinity. SEM analysis of the copolymers with a lower soft segment content confirmed the presence of spherulite superstructures, which arise from the crystallization of the hard segments. When compared with polyurethanes prepared from HP-PDMS, the copolymers synthesized from EO-PDMS with the same content of the soft segments had a higher degree of crystallinity, better thermal stability and a less hydrophobic surface. The obtained results showed that the synthesized polyurethanes had good thermal and surface properties, which could be further modified by changing the type or content of the soft segments.en
dc.publisherSerbian Chemical Society
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172062/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceJournal of the Serbian Chemical Society
dc.subjectthermoplastic polyurethanesen
dc.subjectpoly(dimethylsiloxane)en
dc.subject2D NMR spectroscopyen
dc.subjectthermal propertiesen
dc.subjectsurface propertiesen
dc.titleStructural, thermal and surface characterization of thermoplastic polyurethanes based on poly(dimethylsiloxane)en
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractДјонлагиц, Јасна; Роган, Јелена; Гођевац, Дејан; Милациц, Весна; Остојиц, Сања; Стефановић, Иван; Aнтиц, Весна В; Пергал, Марија;
dc.citation.volume79
dc.citation.issue7
dc.citation.spage843
dc.citation.other79(7): 843
dc.citation.rankM23
dc.identifier.doi10.2298/JSC130819149P
dc.identifier.rcubConv_3185
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/8029/1559.pdf
dc.identifier.scopus2-s2.0-84920406211
dc.identifier.wos000339931600008
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record