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Features of the Rheological Behavior of Starch Hydrogels Modified with Synthetic Latexes

The rheological properties of starch-latex blends mechanically activated in a rotary-pulse apparatus were studied. Several integral criteria—flexibility, polarity and hydrophilicity of macromolecules, particle size and electrokinetic potential—were chosen to evaluate the effectiveness of starch modi...

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Bibliographic Details
Published in:Russian journal of general chemistry 2023-06, Vol.93 (6), p.1591-1598
Main Authors: Trifonova, I. P., Burmistrov, V. A., Losev, N. V., Rodicheva, J. A., Lipatova, I. M., Koifman, O. I.
Format: Article
Language:English
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Summary:The rheological properties of starch-latex blends mechanically activated in a rotary-pulse apparatus were studied. Several integral criteria—flexibility, polarity and hydrophilicity of macromolecules, particle size and electrokinetic potential—were chosen to evaluate the effectiveness of starch modification with synthetic copolymer latexes. An increase in the blends viscosity was shown to observe for more flexible polymers Binder RA, Binder AF, Ruzin with a glass transition temperature ( T g ) below 25°C. Polymers BAK-R and Aquapol with high values of the modulus E′ reduce viscosity. The hydrophilicity of synthetic copolymers and their particle size promote an increase in the blends viscosity.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363223060336