Characterization and evaluation of the hydrolytic stability of trifluoroacetylated cellulose fibers
authors Cunha, AG; Freire, CSR; Silvestre, AJD; Neto, CP; Gandini, A; Orblin, E; Fardim, P
nationality International
journal JOURNAL OF COLLOID AND INTERFACE SCIENCE
author keywords cellulose; trifluoroacetic anhydride; trifluoroacetates; hydrophobic; lipophobic; hydrolysis
keywords COMPOSITE-MATERIALS; PLASMA TREATMENT; SURFACE; NANOCOMPOSITES; ESTERIFICATION; ESTERS; PAPER; ACID
abstract The controlled heterogeneous modification of cellulose fibers with trifluoroacetic anhydride was investigated. The characterization of the ensuing materials was per-formed by elemental analysis, FTIR spectroscopy, X-ray diffraction (XRD), thermogravimetry, and surface analysis (XPS, ToF-SIMS, and contact angles measurements). The trifluoroacetylation enhanced significantly the hydrophobic and lipophobic character of the fibers, whereas their thermal stability and cristallinity were only modestly affected by this treatment, except under the most severe conditions for the latter. Their hydrolytic stability to water vapour was also assessed as a function of the air humidity and shown to be lower than that of still liquid water in the case of a saturated atmosphere. (C) 2007 Elsevier Inc. All rights reserved.
publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
issn 0021-9797
year published 2007
volume 316
issue 2
beginning page 360
ending page 366
digital object identifier (doi) 10.1016/j.jcis.2007.09.002
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000250987500018
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journal analysis (jcr 2019):
journal impact factor 7.489
5 year journal impact factor 6.171
category normalized journal impact factor percentile 80.818
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