Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/145952
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dc.contributor.authorHu, Kelingen_US
dc.date.accessioned2021-01-18T05:56:57Z-
dc.date.available2021-01-18T05:56:57Z-
dc.date.issued2020-
dc.identifier.citationHu, K. (2020). Bio-based aromatic copolyesters : influence of chemical microstructures on thermal and crystalline properties. Polymers, 12(4), 829-. doi:10.3390/polym12040829en_US
dc.identifier.issn2073-4360en_US
dc.identifier.urihttps://hdl.handle.net/10356/145952-
dc.description.abstractAromatic copolyesters, derived from bio-based nipagin and eugenol, were synthesized with renewable 1,6-hexandiol as the spacer. Number-average, weight-average molecular weights (Mn, Mw), and polydispersity (D) values were determined by size exclusion chromatography (SEC). Chemical structures were confirmed by 1H NMR and 13C NMR spectroscopies. Chemical microstructure analysis suggested that the nipagin and eugenol-derived units were inserted into polymer chains in an arbitrary manner. Due to the short chain of 1,6-hexanediol, the splitting of magnetically different methylene carbons, adjacent to the alcohol-oxygens, proved to be more sensitive towards sequence distributions, at the dyed level, than those from 1,10-decanediol. Thermal gravimetric analysis (TGA) demonstrated that these polyester materials have excellent thermal stability (>360 °C), regardless of the content of eugenol-derived composition incorporated. Differential scanning calorimetric (DSC) and wide-angle X-ray diffraction (WXRD) experiments revealed the semicrystalline nature for this kind of copolyesters. The crystallinities gradually decreased with the increase of eugenol-derived composition. Thermal and crystalline properties were well discussed from the microscopic perspective. The point of this work lies in establishing guidance for future design and modification of high-performance polymer materials from the microscopic perspective.en_US
dc.language.isoenen_US
dc.relation.ispartofPolymersen_US
dc.rights© 2020 The Author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.subjectScience::Chemistryen_US
dc.titleBio-based aromatic copolyesters : influence of chemical microstructures on thermal and crystalline propertiesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.identifier.doi10.3390/polym12040829-
dc.description.versionPublished versionen_US
dc.identifier.pmid32260560-
dc.identifier.issue4en_US
dc.identifier.volume12en_US
dc.subject.keywordsBio-baseden_US
dc.subject.keywordsCopolyesteren_US
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