Brillouin scattering in polyphenyls. I. Room temperature study of p-terphenyl (H14, D14) and biphenyl (D10)
- 1 April 1980
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 72 (7) , 4145-4152
- https://doi.org/10.1063/1.439644
Abstract
We report the results of Brillouin scattering measurements of the elastic constants of two elements from the polyphenyl series : biphenyl (D10) and p‐terphenyl (D14, H14). These values are found to differ mainly for C33 : 18.06×109 N/m2 in biphenyl and 26.42×109 N/m2 in p‐terphenyl. A simple chain model is given which accounts for this difference whereas elastic constants computed from atom–atom potential parameters are found in moderate agreement with our measured data.Keywords
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