2017/02/23 by M. Głuszek, Agnieszka Antosik, Głuszek, M. +13
Chemistry · Engineering · Materials Science · #Adsorption, diffusion, and thermodynamic properties of materials #Advanced Theoretical and Applied Studies in Material Sciences and Geometry #FOS: Physical sciences #Material Dynamics and Properties #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.1702.07280
openalex publication_date 2017/02/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Results of broadband dielectric spectroscopy and rheological studies of poly(propylene glycol) + SiO2 nanocomposites are presented. They show that the dynamics in high-concentrated composite is determined by confinement and adsorption effects, resulting from interactions of confined polymers correspond with the host system at the interface between PPG and solid nanoparticles. The evolution of relaxation times follows the clear Vogel-Fulcher-Tammann pattern, what is proved by the supplementary activation energy temperature index analysis. The strong influence of nanoparticles on the transitional dynamics and the fragility in the ultraviscous domain was noted.