Unravelling the distinct crystallinity and thermal properties of suberin compounds from Quercus suber and Betula pendula outer barks

authors	Sousa, AF; Gandini, A; Caetano, A; Maria, TMR; Freire, CSR; Neto, CP; Silvestre, AJD
nationality	International
journal	INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
author keywords	Suberin; Betula pendula Roth; Quercus suber L; Lipophilic compounds; Crystallinity
keywords	IONIC LIQUIDS; CORK; BIOPOLYESTERS; POLYURETHANES; METHANOLYSIS; URETHANES; CHEMICALS; PLANTS; WAXES
abstract	The main purpose of this study was to investigate the potential of suberin (a naturally occurring aromatic-aliphatic polyester ubiquitous to the vegetable realm) as a renewable source of chemicals and, in particular, to assess their physical properties. A comparison between cork and birch suberin fragments obtained by conventional depolymerisation processes (hydrolysis or methanolysis) is provided, focusing essentially on their thermal and crystallinity properties. It was found that suberin fragments obtained by the hydrolysis depolymerisation of birch had a high degree of crystallinity, as indicated by their thermal analysis and corroborated by the corresponding XRD diffractions, as opposed to hydrolysis-depolymerised cork suberin counterparts, which were essentially amorphous. (C) 2016 Elsevier B.V. All rights reserved.
publisher	ELSEVIER SCIENCE BV
issn	0141-8130
year published	2016
volume	93
beginning page	686
ending page	694
digital object identifier (doi)	10.1016/j.ijbiomac.2016.09.031
web of science category	Biochemistry & Molecular Biology; Chemistry, Applied; Polymer Science
subject category	Biochemistry & Molecular Biology; Chemistry; Polymer Science
unique article identifier	WOS:000389090900081