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dc.creatorStefanović, Ivan
dc.creatorGođevac, Dejan
dc.creatorSpirkova, Milena
dc.creatorJovancic, Petar
dc.creatorTešević, Vele
dc.creatorMilačić, Vesna
dc.creatorPergal, Marija
dc.date.accessioned2019-01-30T17:51:08Z
dc.date.available2019-01-30T17:51:08Z
dc.date.issued2016
dc.identifier.issn0367-598X
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1989
dc.description.abstractSegmented thermoplastic polyurethane copolymers (PURs) were synthesized using 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as the hard segment and alpha,omega-dihydroxy-poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) (PPO-PDMS) as the soft segment. The content of incorporated soft segments in PURs varied in the range from 40 to 90 wt.%. The structure, molecular weights and crystallinity of obtained copolymers were monitored by FTIR, H-1- and 2D-NMR spectroscopy, and GPC and DSC analysis, respectively. Surface free energy analysis indicates the presence of hydrophobic (siloxane) groups on the surface, giving highly hydrophobic nature to the obtained PURs films. Water absorption measurements showed that the increase of the hydrophobic PPO-PDMS segment content led to the decrease of percentage of absorbed water in copolymers. SEM and AFM analysis revealed that copolymers with lower content of PPO-PDMS segments have higher microphase separation between segments. The results obtained in this work indicate that synthesized PURs based on PPO-PDMS demonstrated proper surface and morphological properties with a great potential for variety of applications such as hydrophobic coatings in biomedicine.en
dc.publisherAssoc Chemical Engineers Serbia, Belgrade
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172062/RS//
dc.relationCzech Science Foundation (Grant Agency of the Czech Republic) [13-06700S]
dc.rightsopenAccess
dc.sourceHemijska industrija
dc.subjectsegmented polyurethanesen
dc.subjectpoly(dimethylsiloxane)en
dc.subject2D-NMR spectroscopyen
dc.subjectsurface free energyen
dc.subjectmorphologyen
dc.titleImpact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymersen
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractЈованциц, Петар; Спиркова, Милена; Милациц, Весна; Гођевац, Дејан; Пергал, Марија; Стефановић, Иван; Тесевиц, Веле;
dc.citation.volume70
dc.citation.issue6
dc.citation.spage725
dc.citation.epage738
dc.citation.other70(6): 725-738
dc.citation.rankM23
dc.identifier.doi10.2298/HEMIND151127009S
dc.identifier.rcubConv_3318
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs//bitstream/id/8417/1987.pdf
dc.identifier.scopus2-s2.0-85011867229
dc.identifier.wos000392310700012
dc.type.versionpublishedVersion


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