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dc.creatorCakic, Suzana M.
dc.creatorRistić, Ivan S.
dc.creatorMarinović-Cincović, Milena
dc.creatorNikolic, Nada C.
dc.creatorNikolic, Ljubisa B.
dc.creatorCvetinov, Miroslav J.
dc.date.accessioned2018-03-01T17:28:52Z
dc.date.available2018-03-01T17:28:52Z
dc.date.issued2017
dc.identifier.issn0300-9440
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1475
dc.description.abstractNovel biobased poly(ester-urethane)s (PUDs) were synthesized by solvent free homogeneous solution polymerization of poly(caprolactone) diol (PCL), castor oil-based polyols (COLs), dimethylolpropionic acid (DMPA), isophorone diisocyanate (IPDI) and 1,4-butane diol (BD) as the chain extender. The polyurethane dispersions were prepared by adding required amount of triethylamine (TEA) and water. In this Work, castor oil-based polyols have been synthesized using the depolymerized oligoester obtained from glycolysis of PET waste with poly(ethylene glycol) (PEG 400) and castor oil. The effects of the soft segments content on the thermal and coatings properties of resulting polyurethane films have been examined by Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and measurement of the coatings properties. Phase separation of polyurethane shows a strong correlation with crystallization behaviour of the polyurethane prepared. It is established that all PUD samples containing PCL as a part soft segment with different molar ratio of castor-oil polyol are crystallisable polymers. The results from XRD analysis have showed that highest degree of crystallinity (23 and 22%) is reached in polyurethanes based on the largest content PCL diol (CPU77 and CPU73). The thermal stability of samples based on (COL/PCL molar ratio 0.25:0.75) possesses the best thermal properties but less values hardness coatings which can be ascribed to a decrease of the hard segment i.e. DMPA content in polyurethane dispersions. The long-term stability of polyurethane dispersions has been investigated using UV vis spectroscopy. The physico-mechanical properties such as hardness adhesion test and gloss of the dried films have also been determined considering the effect of soft segment content on coating properties. (C) 2016 Elsevier B.V. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45022/RS//
dc.rightsrestrictedAccessen
dc.sourceProgress in Organic Coatingsen
dc.subjectGlycolysis PET wasteen
dc.subjectCastor oilen
dc.subjectWaterborne biobased polyurethanesen
dc.subjectThermal stabilityen
dc.subjectCoatingsen
dc.titleSynthesis and properties biobased waterborne polyurethanes from glycolysis product of PET waste and poly(caprolactone) diolen
dc.typearticleen
dcterms.abstractНиколиц, Нада Ц.; Ристиц, Иван С.; Цветинов, Мирослав Ј.; Мариновић-Цинцовић Милена; Николиц, Љубиса Б.; Цакиц, Сузана М.;
dc.citation.volume105
dc.citation.spage111
dc.citation.epage122
dc.identifier.wos000397359700012
dc.identifier.doi10.1016/j.porgcoat.2016.10.038
dc.citation.rankM21
dc.identifier.scopus2-s2.0-85009179756


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