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D-Glucose-derived PET copolyesters with enhanced Tg

Opened Access D-Glucose-derived PET copolyesters with enhanced Tg

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Autor: Japu, Cristina
Martínez de Ilarduya, Antxon
Alla, Abdelilah
García Martín, María de Gracia
Galbis Pérez, Juan Antonio
Muñoz Guerra, Sebastián
Departamento: Universidad de Sevilla. Departamento de Química Orgánica y Farmacéutica
Fecha: 2013
Publicado en: Polymer Chemistry, 4 (12), 3524-3536.
Tipo de documento: Artículo
Resumen: 2,4:3,5-Di-O-methylene-D-glucitol (Glux-diol) and dimethyl 2,4:3,5-di-O-methylene-D-glucarate (Glux-diester) have been copolymerized with ethylene glycol and dimethyl terephthalate by polycondensation in the bulk to produce PET copolyesters as well as their respective homopolyesters. These sugar-based bicyclic monomers were synthesized from 1,5-D-gluconolactone, a commercially accessible compound derived from D-glucose. The PET copolyesters with either the diol or the diacid counterpart partially replaced by Glux had molecular weights in the 20 000–40 000 range and a random microstructure, and they were stable well above 300 o C. The PET copolyesters containing more than 10–15% of sugar-based units were amorphous while those displaying crystallinity were observed to crystallize from the melt at much lower rates than PET. The glass transition temperature of PET dramatically increased with the incorporation of Glux, whichever unit, diol or diacid, was replaced, but the enhancing...
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Cita: Japu, C., Martínez de Ilarduya, A., Alla, A., García Martín, M.d.G., Galbis Pérez, J.A. y Muñoz Guerra, S. (2013). D-Glucose-derived PET copolyesters with enhanced Tg. Polymer Chemistry, 4 (12), 3524-3536.
Tamaño: 542.8Kb
Formato: PDF

URI: http://hdl.handle.net/11441/42087

DOI: http://dx.doi.org/ 10.1039/c3py00340j

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