Effect of polymer-plasticizer interactions on the oxygen permeability of starch-sorbitol-water films

Authors
Gaudin, S Lourdin, D Le Botlan, D Forssell, P Ilari, JL Colonna, P
Citation
S. Gaudin et al., Effect of polymer-plasticizer interactions on the oxygen permeability of starch-sorbitol-water films, MACRO SYMP, 138, 1999, pp. 245-248
Citations number
6
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR SYMPOSIA
ISSN journal
10221360 → ACNP
Volume
138
Year of publication
1999
Pages
245 - 248
Database
ISI
SICI code
1022-1360(199903)138:<245:EOPIOT>2.0.ZU;2-2
Abstract
This study evaluated the oxygen permeability (O.P.) of starch-sorbitol-wate r films produced by casting. With a sorbitol content <20%, O.P. (0.15 10(-1 6) cm(2)/s.Pa for 8.8% sorbitol) was lower than for other polymers classica lly used as oxygen barriers. With a sorbitol content >20%, O.P. (1.6 10(-16 ) cm(2)/s.Pa for 24.9% sorbitol) was higher than for starch films without a plasticizer. These results were correlated with molecular mobility as dete rmined by time-domain NMR. Low and high O.P. corresponded respectively to a decrease and an increase of molecular mobility relative to sorbitol conten t.