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Bio-based aromatic copolyesters made from 1,6-hexanediol and bicyclic diacetalized d-glucitol

Opened Access Bio-based aromatic copolyesters made from 1,6-hexanediol and bicyclic diacetalized d-glucitol

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Autor: Japu, Cristina
Alla, Abdelilah
Martínez de Ilarduya, Antxon
García Martín, María de Gracia
Benito Hernández, Elena María
Galbis Pérez, Juan Antonio
Muñoz Guerra, Sebastián
Departamento: Universidad de Sevilla. Departamento de Química Orgánica y Farmacéutica
Fecha: 2012
Publicado en: Polymer Chemistry, 3 (8), 2092-2101.
Tipo de documento: Artículo
Resumen: The diacetalized diol 2,4:3,5-di-O-methylene-D-glucitol (Glux), a bicyclic compound derived from D-glucose, was used as a comonomer of 1,6-hexanediol in polycondensation in the melt with dimethyl terephthalate to produce a set of aromatic copolyesters (PHxGluxyT) with Glux contents ranging from 5 to 32%-mole. These sustainable copolyesters had molecular weights within the 12,000 to 45,000 g mol-1 range, and polydispersities between 2.0 and 2.5. They all had a random microstructure and displayed slight optical activity. PHxGluxyT showed a good thermal stability and were semicrystalline with both crystallinity degree and crystallization rate decreasing as the content in Glux increased. Conversely, Tg increased with the incorporation of Glux going from 8 oC in PHT to near 60 oC in the copolyester containing 32%-mole Glux. Compared to PHT, PHxGluxyT copolyesters showed not only an enhanced susceptibility to hydrolysis but also an appreciable biodegradability in the presence of lipases.
Cita: Japu, C., Alla, A., Martínez de Ilarduya, A., García Martín, M.d.G., Benito Hernández, E.M., Galbis Pérez, J.A. y Muñoz Guerra, S. (2012). Bio-based aromatic copolyesters made from 1,6-hexanediol and bicyclic diacetalized d-glucitol. Polymer Chemistry, 3 (8), 2092-2101.
Tamaño: 1.017Mb
Formato: PDF

URI: http://hdl.handle.net/11441/42089

DOI: http://dx.doi.org/10.1039/c2py20145c

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