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dc.contributor.authorQuintana Vicente, Robert
dc.contributor.authorMartínez de Ilarduya Sáez de Asteasu, Domingo Antxon
dc.contributor.authorAlla Bedahnane, Abdelilah
dc.contributor.authorMuñoz Guerra, Sebastián
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationQuintana, R. [et al.]. Polyterephthalates made from ethylene glycol, 1,4-cyclohexanedimethanol, and isosorbide. "Journal of polymer science. Part A, polymer chemistry", 15 Maig 2011, vol. 49, núm. 10, p. 2252-2260.
dc.description.abstractThree series of terephthalate polyesters (copolyesters and terpolyesters) containing 70, 80, and 90 mol % of ethylene glycol respectively, 1,4-cyclohexanedimethanol (CHDM) and isosorbide in varying ratios, were synthesized by melt polycondensation. It was found that only ~75 mol % of the feeding isosorbide was incorporated in the resulting polyesters and that their content in diethylene glycol oscillated between 2 and 4 mol %. The polyesters had weight-average molecular weights in the 25,000–33,000 g mol~1 range and polydispersities between 2 and 2.5. The combined 1H and 13C NMR analysis revealed that the microstructure of all these polyesters was at random. They showed good thermal stability with decomposition temperatures above 400ºC. Their glass-transition temperatures were observed to increase with the content in cyclic diols, this effect being more pronounced when isosorbide was the replacing comonomer. Only the series containing 90 mol% of ethylene terephthalate units was able to crystallize upon cooling from the melt. Compared isothermal crystallizations revealed that isosorbide was more effective than CHDM in repressing the crystallizability of PET.
dc.format.extent9 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
dc.subject.lcshCopolymers -- Thermal properties
dc.titlePolyterephthalates made from ethylene glycol, 1,4-cyclohexanedimethanol, and isosorbide
dc.contributor.groupUniversitat Politècnica de Catalunya. POL - Polímers Industrials Avançats i Biopolímers Tecnològics
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorQuintana, R.; Martinez de Ilarduya, A.; Alla, A.; Muñoz, S.
upcommons.citation.publicationNameJournal of polymer science. Part A, polymer chemistry

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