Synthesis and controlled release behavior of adducts dextran-2,4-dichlorophenoxyacetic chloride

Authors
Diaz, MI Bermello, JC Napoles, MN
Citation
Mi. Diaz et al., Synthesis and controlled release behavior of adducts dextran-2,4-dichlorophenoxyacetic chloride, LATIN AM A, 31(1), 2001, pp. 27-30
Citations number
14
Categorie Soggetti
Chemical Engineering
Journal title
LATIN AMERICAN APPLIED RESEARCH
ISSN journal
03270793 → ACNP
Volume
31
Issue
1
Year of publication
2001
Pages
27 - 30
Database
ISI
SICI code
0327-0793(200101)31:1<27:SACRBO>2.0.ZU;2-3
Abstract
A simple and cheaper modification reaction of dextran with 2,4-dichlorophen oxyacetic chloride using some bases as catalysts was studied. The structure of the resulting polymers was determined by means of infrared, H-1 and C-1 3 nuclear magnetic resonance spectroscopy. The hydrolysis in the heterogene ous phase showed that the release of the active compound is dependent on th e hydrophilic character of the modified dextran polymers, the temperature a nd the pH value of the medium.