Space resolved relaxation dynamics of poly(vinyl acetate) close to interfaces with SiOx nanoinclusions
- Conference date: 10–14 June 2012
- Location: Ischia, Italy
The influence on relaxation dynamics of poly(vinyl acetate) of SiOx nanoparticles dispersed in the polymeric matrix was investigated by Local Dielectric Spectroscopy, measuring the phase loss angle in the polymer as a function of the distance from the nanoparticles. Both images of phase loss angle and acquisition of local dielectric spectra show two distinct features, namely, a faster relaxation dynamics when approaching the nanoparticle surface, and a rather large range of influence on polymer dynamics with respect to nanoparticle size, probe size, and gyration radius of the polymer.
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