Электронный каталог

Статья

Nuriyev, M.A.
Effect of Gamma Irradiation on the Structural and Thermophysical Properties of PVA/CdS Composites / M.A.Nuriyev, A.A.Nabiyev, A.I.Gasimova, A.A.Shukurova, T.N.Vershinina, O.Yu.Ponamareva. – Text : electronic // Materials Chemistry and Physics. – 2026. – Vol. 350. – P. 131931. – URL: https://doi.org/10.1016/j.matchemphys.2025.131931. – Bibliogr.: 71.

In the presented work, the thermophysical properties of initial PVA/CdS nanocomposite films and those modified with gamma quanta at different doses, obtained through the formation of cadmium sulfide (CdS) semiconductor nanoparticles in the pores of polyvinyl alcohol (PVA) using a layered chemical sorption method were determined by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) methods. The relations between thermophysical properties and changes in the supramolecular structure of composite layers after the impact of filler and gamma radiation were discussed. It was determined that CdS nanoparticles and radiation structures interfere with the crystallization of molecular chains in PVA and PVA/CdS nanocomposites, changing the supramolecular structure of the matrix and causing differences in the characteristic parameters of melting and crystallization processes obtained from DSC thermograms. Through a comparative analysis of TG and DTG thermograms of PVA and PVA/CdS nanocomposites, it was found that the mass loss during thermal degradation occurred twice as fast in the initial PVA samples compared to nanocomposites. This suggests that PVA/CdS nanocomposites exhibit higher thermal stability than the pure polymer matrix. The increase in thermal stability of nanocomposite layers was explained by the interaction between organic polymer and inorganic nanoparticles at the interphase boundary.



Спец.(статьи,препринты) = С 349.1 - Действие излучения на материалы$
Спец.(статьи,препринты) = С 33 а - Нанофизика. Нанотехнология$
ОИЯИ = ОИЯИ (JINR)2026