Abstract
The Grüneisen lattice parameter has been calculated from the data on the Poisson coefficient for amorphous polymers and glasses. For glassy polymers, the thermodynamic Grüneisen parameter characterizes anharmonicity averaged over intrachain and other vibrational modes, the Grüneisen lattice parameter defines anharmonicity of interchain interactions provided by intermolecular interactions. In the case of alkali silicate glasses, the Grüneisen lattice parameter reflects the anharmonicity of vibrations of ionic sublattice that is formed by alkali-metal ions and nonbridging oxygen atoms.
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Original Russian Text © B.D. Sanditov, Sh.B. Tsydypov, D.S. Sanditov, V.V. Mantatov, 2006, published in Vysokomolekulyarnye Soedineniya, Ser. B, 2006, Vol. 48, No. 7, pp. 1198–1202.
This work was supported by the Russian Foundation for Basic Research, project no. 05-01-00071a.
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Sanditov, B.D., Tsydypov, S.B., Sanditov, D.S. et al. The Grüneisen parameter and Poisson coefficient for glassy organic polymers and inorganic glasses. Polym. Sci. Ser. B 48, 173–176 (2006). https://doi.org/10.1134/S1560090406070062
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DOI: https://doi.org/10.1134/S1560090406070062