An improved kinetic model for the periodate oxidation of starch

The kinetics of the periodate oxidation of starch to dialdehyde starch have been studied thoroughly based on a reliable high-performance liquid chromatographic analysis. Investigation of the early stage of reaction has revealed that it proceeds initially following second-order kinetics. Later on, ho...

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Bibliographic Details
Published inPolymer (Guilford) Vol. 35; no. 23; pp. 5091 - 5097
Main Authors Veelaert, S., de Wit, D., Tournois, H.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.01.1994
Elsevier
Subjects
Applied sciences
dialdehyde starch
Exact sciences and technology
kinetic model
Natural polymers
periodate oxidation
Physicochemistry of polymers
Starch and polysaccharides
periodate oxidation
kinetic model
dialdehyde starch
Kinetic model
Chemical modification
Periodates
Batchwise
Starch dialdehyde
Starch
Aqueous medium
Oside polymer
Oxidation
Experimental study
Semicontinuous
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Summary:The kinetics of the periodate oxidation of starch to dialdehyde starch have been studied thoroughly based on a reliable high-performance liquid chromatographic analysis. Investigation of the early stage of reaction has revealed that it proceeds initially following second-order kinetics. Later on, however, the resulting second-order model deviates from the experimental data. In order to get a model for the course of the total reaction, the kinetics have been approached from a different angle. Based on elementary kinetic principles, an appropriate model has been derived that can be used to simulate the oxidation process. An oxidation process performed semi-continuously has been modelled and compared with a batch process.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(94)90670-X