In situ synthesis of bacterial cellulose/polycaprolactone blends for hot pressing nanocomposite films production
authors Figueiredo, ARP; Silvestre, AJD; Neto, CP; Freire, CSR
nationality International
journal CARBOHYDRATE POLYMERS
author keywords Bacterial cellulose; Poly(epsilon-caprolactone); In situ biosynthesis; Nanocomposite films
keywords MECHANICAL-PROPERTIES; CELLULOSE COMPOSITES; POLYMERS; NANOCELLULOSES; MEMBRANES; DELIVERY; CULTURE; XYLINUS; SURFACE; VITRO
abstract A series of bacterial cellulose (BC)/polycaprolactone (PCL) nanocomposite films were successfully prepared by supplementation of the BC culture medium with variable amounts of PCL powder followed by hot-pressing of the BC/PCL mixtures obtained after incubation. PCL powder was fully incorporated into the BC network during its production and did not change the BC network morphology. The obtained films showed a homogenous distribution of PCL throughout the BC network, as well as good thermal stability (up to 200 degrees C) and improved mechanical properties, when compared to pristine PCL. In addition, the intrinsic biodegradability and biocompatibility of the nanocellulose fibers and PCL opens the possibility of using this novel nanocomposite in the biomedical field and food packaging. The BC biosynthetic approach combined with the hot-pressing proved successful for the sustainable development of nanocomposites combining hydrophobic thermoplastic matrices and hydrophilic nanocellulose fibers, without the use of harmful organic solvents commonly used to dissolve this type of polymeric matrices. (C) 2015 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0144-8617
year published 2015
volume 132
beginning page 400
ending page 408
digital object identifier (doi) 10.1016/j.carbpol.2015.06.001
web of science category Chemistry, Applied; Chemistry, Organic; Polymer Science
subject category Chemistry; Polymer Science
unique article identifier WOS:000361184900048
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journal analysis (jcr 2017):
journal impact factor 5.158
5 year journal impact factor 5.326
category normalized journal impact factor percentile 93.599
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