Thermal degradation of poly(ethylene oxide) and polyacrylamide with ascorbic acid

The degradation of poly(ethylene oxide) and polyacrylamide in aqueous solution was studied with ascorbic acid. Gel permeation chromatograph was used to monitor molecular weight dynamics with time. A model based on continuous distribution kinetics showed that the experimental data matched well with t...

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Bibliographic Details
Published in:Journal of applied polymer science 2006-09, Vol.101 (5), p.3067-3072
Main Authors: Vijayalakshmi, S. P., Raichur, Ashok, Madras, Giridhar
Format: Article
Language:English
Subjects:
activation energy
Applied sciences
Chemical reactions and properties
Degradation
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
poly(ethylene oxide)
polyacrylamide
recycling
temperature
water soluble polymers
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Summary:The degradation of poly(ethylene oxide) and polyacrylamide in aqueous solution was studied with ascorbic acid. Gel permeation chromatograph was used to monitor molecular weight dynamics with time. A model based on continuous distribution kinetics showed that the experimental data matched well with theory. The results showed that the degradation of polymers is significantly enhanced in the presence of ascorbic acid. The degradation rate initially increased with ascorbic acid concentration but was independent of it at higher concentrations. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3067–3072, 2006
ISSN:0021-8995
1097-4628
DOI:10.1002/app.24115