Abstract
The heat capacities of first- and third-generation carbosilane dendrimers with terminal phenyldioxolane groups are studied as a function of temperature via vacuum and differential scanning calorimetry in the range of 6 to 520 K. Physical transformations that occur in the above temperature range are detected and their standard thermodynamic characteristics are determined and analyzed. Standard thermodynamic functions Cpο(T), [H°(T) − H°(0)], [S°(T) − S°(0)], and [G°(T) − H°(0)] in the temperature range of T → 0 to 520 K for different physical states and the standard entropies of formation of the studied dendrimers at T = 298.15 K are calculated, based on the obtained experimental data.
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Original Russian Text © N.N. Smirnova, S.S. Sologubov, Yu.A. Sarmini, A.V. Markin, N.A. Novozhilova, E.A. Tatarinova, A.M. Muzafarov, 2017, published in Zhurnal Fizicheskoi Khimii, 2017, Vol. 91, No. 12, pp. 2030–2038.
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Smirnova, N.N., Sologubov, S.S., Sarmini, Y.A. et al. Thermodynamic properties of first- and third-generation carbosilane dendrimers with terminal phenyldioxolane groups. Russ. J. Phys. Chem. 91, 2317–2325 (2017). https://doi.org/10.1134/S0036024417110279
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DOI: https://doi.org/10.1134/S0036024417110279