CHARACTERIZATION OF THE CORK SURFACE BY INVERSE GAS-CHROMATOGRAPHY
authors CORDEIRO, N; NETO, CP; GANDINI, A; BELGACEM, MN
journal JOURNAL OF COLLOID AND INTERFACE SCIENCE
keywords QUERCUS-SUBER L; FIBERS; ADSORPTION; COVERAGE
abstract Inverse gas chromatography (IGC) at infinite dilution has been used to study the surface properties of cork from Quercus suber, The dispersive component of its surface energy was determined at different temperatures using n-alkanes as probes, and a gamma(S)(D) value of 38 +/- 1 mJ . m(-2) at 40 degrees C was obtained. The surface acid (A)/base(B) properties were also evaluated by using polar probes and the results indicate that cork has an amphoteric character, with a K-A/K-B = 1.1. The advantages of IGC, compared with the technique of contact angle measurements in the characterization of the cork surface, are discussed. (C) 1995 Academic Press, Inc.
publisher ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS
issn 0021-9797
year published 1995
volume 174
issue 1
beginning page 246
ending page 249
digital object identifier (doi) 10.1006/jcis.1995.1387
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:A1995RQ70800031
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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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