Abstract
The thermophysical properties of nanocompositions containing conducting nanoparticles of silver, gold, and fullerene C60 in nonconductive polymer matrices of various natures - chitosan, poly(vinylpyrrolidone), poly(methyl methacrylate), poly(allyl methacrylate), organic-inorganic copolymers based on hydroxyethyl methacrylate and poly(titanium oxide) are considered in detail. Gold or silver nanoparticles in polymer matrices of various natures were formed in situ by UV reduction of the corresponding precursors - HAuCl4 or AgNO3. The average size of the nanoparticles did not exceed 20 nm. Fullerene C60 was introduced either directly into the polymer matrix during the mixing process or on the synthesis of the polymer. The thermophysical properties of all polymer nanocomposites were studied by differential scanning calorimetry and dynamic mechanical analysis. In all cases, there is a significant decrease in the glass transition temperatures of the composites by an amount from 20 to 60°C relative to the glass transition temperature of the polymer matrix.
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