SURFACE-PROPERTIES OF SUBERIN

Authors
CORDEIRO N AURENTY P BELGACEM MN GANDINI A NETO CP
Citation
N. Cordeiro et al., SURFACE-PROPERTIES OF SUBERIN, Journal of colloid and interface science, 187(2), 1997, pp. 498-508
Citations number
17
Categorie Soggetti
Chemistry Physical
Journal title
Journal of colloid and interface science → ACNP
ISSN journal
00219797
Volume
187
Issue
2
Year of publication
1997
Pages
498 - 508
Database
ISI
SICI code
0021-9797(1997)187:2<498:SOS>2.0.ZU;2-N
Abstract
The surface energy of suberin was determined by four different methods , namely, (i) contact angle measurements, (ii) Wilhelmy plate measurem ents, (iii) maximum bubble pressure, and (iv) inverse gas chromatograp hy (IGC). The first three methods gave a gamma(sub) value in the range 40-50 mN m(-1) at room temperature. The major component of this value reflects the dispersive contribution. The IGC measurements showed a h igher dispersive term, which is common with this method of characteriz ation. The surface acid (A)/base(B) properties were also evaluated, an d the results indicated that suberin has an acidic character. (C) 1997 Academic Press.