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Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties
dc.creator | Aleksandrović, Vesna | |
dc.creator | Đonlagić, Jasna | |
dc.date.accessioned | 2023-01-13T11:04:25Z | |
dc.date.available | 2023-01-13T11:04:25Z | |
dc.date.issued | 2001 | |
dc.identifier.issn | 0352-5139 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5357 | |
dc.description.abstract | A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO, M̄n = 1000 g/mol) was synthesized in a two stage process involving transesterification and polycondensation in the melt. The mole ratio of the starting components was selected to result in copolymers with a constant hard:soft segment wieght ratio (56:44). The amount of DMF was 10 mol %, referred to the total amount of the esters used. The synthesis was optimized in terms of both the concentration of catalyst, tetra-n-butyl-titanate, Ti(OBu)4 and thermal stabilizer N,N'-diphenyl-p-phenylenediamine, DPPD, as well as the temperature. The composition and structure of the synthesized poly(ether-ester)s were characterized by 1H-NMR. The number average molecular weights of the polymers calculated from the 1H-NMR spectra were compared with the corresponding values of the inherent viscosity (ηinh) in m-cresol and the complex dynamic viscosity (η*). The effect of the content of fumaric residues on the thermal properties of the synthesized copolyesters was also investigated using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). | sr |
dc.language.iso | en | sr |
dc.publisher | Serbian Chemical Society | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Journal of the Serbian Chemical Society | sr |
dc.subject | H-NMR-spectroscopy | sr |
dc.subject | Fumaric residue | sr |
dc.subject | Poly(ether-ester)s | sr |
dc.subject | Thermoplastic elastomers | sr |
dc.title | Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties | sr |
dc.type | article | sr |
dc.rights.license | BY | sr |
dc.citation.epage | 152 | |
dc.citation.issue | 3 | |
dc.citation.rank | M23 | |
dc.citation.spage | 139 | |
dc.citation.volume | 66 | |
dc.identifier.doi | 10.2298/jsc0103139a | |
dc.identifier.fulltext | http://TechnoRep.tmf.bg.ac.rs/bitstream/id/13951/0352-51390103139A.pdf | |
dc.identifier.scopus | 2-s2.0-0035593548 | |
dc.type.version | publishedVersion | sr |