Effects of the pH, concentration, and solvents on the ultrasonic degradation of poly(vinyl alcohol) | Zendy

Vijayalakshmi S. P. | Zendy; Madras Giridhar | Zendy

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Effects of the pH, concentration, and solvents on the ultrasonic degradation of poly(vinyl alcohol)

Author(s) -

Vijayalakshmi S. P.,

Madras Giridhar

Publication year - 2006

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.23280

Subject(s) - vinyl alcohol , solvent , degradation (telecommunications) , gel permeation chromatography , polymer , polymer degradation , materials science , polymer chemistry , alcohol , chemical engineering , chemistry , organic chemistry , composite material , telecommunications , computer science , engineering

The ultrasonic degradation of poly(vinyl alcohol) was investigated at different pHs of the solvent, in different water/solvent binary mixtures, and at different polymer concentrations. The samples were analyzed with gel permeation chromatography. The degradation rate coefficients were determined with a continuous distribution model. A higher degradation rate was obtained at pH extremes, in better solvents, and at lower polymer concentrations. The results are explained and discussed. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 4888–4892, 2006

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