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Biodegradable copolyesters of poly(hexamethylene terephthalate) containing bicyclic 2,4:3,5-di-O-methylene-D-glucarate units

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10.1002/macp.201400299
 
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hdl:2117/24525

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Japu, Cristina
Martínez de Ilarduya Sáez de Asteasu, Domingo AntxonMés informacióMés informacióMés informació
Alla Bedahnane, AbdelilahMés informacióMés informacióMés informació
García Martín, Maria de Gracia
Galbis Pérez, Juan Antonio
Muñoz Guerra, SebastiánMés informacióMés informació
Document typeArticle
Defense date2014-11-01
Rights accessRestricted access - publisher's policy
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
A set of copolyesters (PHTxGluxy) with compositions ranging between 90/10 and 50/50 in addition to the parent homopolyesters poly(hexamethylene terephthalate) (PHT) and PHGlux, are prepared by the melt polycondensation of 1,6-hexanediol (HD) with mixtures of dimethyl terephthalate (DMT) and dimethyl 2,4:3,5-di-O-methylene-d-glucarate (Glux). The copolyesters have inline image in the 35 000–45 000 g mol-1 range, their microstructure is random, and they start to decompose at a temperature well above 300 °C. Crystallinity of PHT is repressed by copoly­merization so that copolyesters containing more than 20% of sugar-based units are essentially amorphous. On the contrary, PHTxGluxy displays a Tg that increases monotonically with composition from 16 °C in PHT up to 73 °C in PHGlux. Compared with PHT, the copolyesters show an accentuated susceptibility to hydrolysis and are sensitive to the action of lipases upon incubation under physiological conditions. The degradability of PHTxGluxy increases with the content in Glux units.
CitationJapu, C. [et al.]. Biodegradable copolyesters of poly(hexamethylene terephthalate) containing bicyclic 2,4:3,5-di-O-methylene-D-glucarate units. "Macromolecular chemistry and physics", 01 Novembre 2014, vol. 215, núm. 21, p. 2048-2059. 
URIhttp://hdl.handle.net/2117/24525
DOI10.1002/macp.201400299
ISSN1022-1352
Publisher versionhttp://onlinelibrary.wiley.com/doi/10.1002/macp.201400299/abstract
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  • POL - Polímers Industrials Avançats i Biopolímers Tecnològics - Articles de revista [107]
  • Departament d'Enginyeria Química - Articles de revista [2.025]
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