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Thermal Properties and Crystallinity of Thermotropic Liquid Crystalline Copolyesters Prepared from Poly(ethylene terephtalate) (PET) and Rigid Aromatic Units

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dc.contributor.authorTan, Abdullah
dc.contributor.authorAltinok, Eaydar
dc.contributor.authorYerlikaya, Zekeriya
dc.contributor.authorAksoy, Serpil
dc.date.accessioned2026-01-02T13:17:30Z
dc.date.issued2007-04-01
dc.description.abstractA series of copolyesters were synthesized by melt‐polycondensation reaction of poly(ethylene terephtalate) (PET) with various proportions of equimolar compositions of p‐acetoxybenzoic acid (p‐ABA), hydroquinone diacetate (HQDA) and terephtalic acid (TPA). Viscosity, liquid crystallinity, thermal properties, degree of crystallinity and thermal stabilitiy of these copolyesters were investigated by Ubbelohde viscometer, hot‐stage polarized light microscopy (PLM), differential scanning calorimetry (DSC), wide‐angle X‐ray diffraction (WAXD) and thermogravimetric analysis (TGA), respectively. On the basis of viscosity measurement, it was observed that intrinsic viscosity values of the copolyesters are increased regularly with increasing amounts of aromatic units (p‐ABA, HQDA and TPA) in the polymer chain. Thermotropic liquid crystalline behavior was observed in the copolyesters containing over 50 mol% of rigid p‐ABA/HQDA/TPA aromatic units. DSC analysis of the anisotropic copolyesters revealed broad and weak en...
dc.description.urihttps://doi.org/10.1080/10601320601188323
dc.description.urihttps://dx.doi.org/10.1080/10601320601188323
dc.description.urihttps://avesis.gazi.edu.tr/publication/details/f1a28ca8-6b5c-438d-a945-c2cb6c0b90d8/oai
dc.description.urihttps://hdl.handle.net/20.500.12587/3932
dc.identifier.doi10.1080/10601320601188323
dc.identifier.eissn1520-5738
dc.identifier.endpage431
dc.identifier.issn1060-1325
dc.identifier.openairedoi_dedup___::db096e1666038df3b237f99e5a71b7ba
dc.identifier.scopus2-s2.0-33947164235
dc.identifier.startpage425
dc.identifier.urihttps://hdl.handle.net/20.500.12597/35424
dc.identifier.volume44
dc.identifier.wos000246013200011
dc.language.isoeng
dc.publisherInforma UK Limited
dc.relation.ispartofJournal of Macromolecular Science, Part A
dc.rightsCLOSED
dc.subjectcopolymerization
dc.subjectliquid-crystalline copolyester
dc.subjectthermal properties
dc.subjectpoly(ethylene terephthalate)
dc.subjectcrystallinity
dc.titleThermal Properties and Crystallinity of Thermotropic Liquid Crystalline Copolyesters Prepared from Poly(ethylene terephtalate) (PET) and Rigid Aromatic Units
dc.typeArticle
dspace.entity.typePublication
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