TITANIUM(IV) STARCH COMPLEXES

Authors
TYRLIK SK TOMASIK P ANDEREGG JW BACZKOWICZ M
Citation
Sk. Tyrlik et al., TITANIUM(IV) STARCH COMPLEXES, Carbohydrate polymers, 34(1-2), 1997, pp. 1-7
Citations number
31
Journal title
Carbohydrate polymers → ACNP
ISSN journal
01448617
Volume
34
Issue
1-2
Year of publication
1997
Pages
1 - 7
Database
ISI
SICI code
0144-8617(1997)34:1-2<1:>2.0.ZU;2-8
Abstract
Potato and maize starch was titanated with titanium (IV) ethoxide. In both cases titanium was bound via the valence bond to the oxygen atom of the glucose unit 6-CH2OH group, with insignificant coordination to other oxygen atoms present in these units, and the titanium reagent wa s partly complexed with starch. The amount of titanium bound to starch in both cases was dependent on the starch variety and not on the star ch/titanium (IV) ethoxide ratio in the reaction. After the reaction po tato and maize starch contained 37.5 and 42.0% of titanium, respective ly. Titanium (IV) potato and maize 'starchates' fully decomposed and l ost complexed titanium (IV) ethoxide at 470 and 450 degrees C, respect ively. Titanium (IV) oxide powder formed the residue in each case. (C) 1997 Published by Elsevier Science Ltd. All rights reserved.