Dielectric study of acetylated cotton cellulose and saponified cellulose acetate
- Citation:
- Saad, G. R., M. G. Botros, and R. I. Nessim, "Dielectric study of acetylated cotton cellulose and saponified cellulose acetate", Die Angewandte Makromolekulare Chemie, vol. 197, issue 1, pp. 23 - 39, 1992.
Abstract:
Dielectric relaxation data are reported at frequencies of 0.1 – 10000 kHz over a temperature range of 10–80°C on cellulose acetates of different degrees of substitution, and on saponified cellulose acetate. The acetyl substitution is found to remove the low‐frequency relaxation process, γ, previously observed in medicated cotton cellulose, and to affect the other higher‐frequency process, β, in different ways, depending on the acetyl content. Conversely, saponification of cellulose acetate leads to the reversion of these two processes but with different features. Analysis of the absorption bands is made, and an assessment of the results obtained is given. © 1992 Hüthig & Wepf Verlag, Basel
Notes:
Cited By :4Export Date: 6 March 2019