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An experimental study of the dipole moment of poly(dimethylsiloxane)

✍ Scribed by Zuhal Küçükyavuz; Nawash Al-Ghezawi

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
232 KB
Volume
26
Category
Article
ISSN
0014-3057

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✦ Synopsis

The mean-square dipole moments of poly(dimethylsiloxane) chains have been determined from dielectric constant measurements on dilute solutions of the polymer in toluene and carbon tetrachloride at temperatures in the range 10-60°C. The temperature coefficient of the dipole moment ratio in toluene was found to be positive, qualitatively in agreement with the prediction of rotational isomeric state theory. The values of the mean-square dipole moment in carbon tetrachloride are higher than in toluene indicating the existence of a specific solvent effect.

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