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Glass-transition temperatures and glass-forming region in the calcium nitrate water dimethylformamide system

J. Malá and I. Sláma

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, CS-160 00 Prague


Abstract: The glass transition temperatures (7^) of the mixture calcium nitrate—water—dimethylformamide were determined in dependence on the con­ tent of calcium nitrate for the constant mole fraction of dimethylformamide in the mixed solvent. It was ascertained that this dependence can be ap-. proximated, in the framework of experimental errors, by a linear relation. On the basis of experimentally ascertained values of the glass transition temperature the dependence of Tg on the composition of the mixed solvent (yDMF) was calculated. Maxima were ascertained on the curve representing this dependence, and the extents of the glass-forming regions were deter­ mined.

Full paper in Portable Document Format: 423a329.pdf


Chemical Papers 42 (3) 329–338 (1988)

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