Interfacial-interaction induced modifications in segmental dynamics and free volume of the poly(ethyleneimine) canopy in nanoparticle–organic hybrid materials: an investigation by temperature dependent broadband dielectric and positron annihilation spectroscopy

Abstract

Broadband dielectric spectroscopy, Positron annihilation lifetime spectroscopy and Differential scanning calorimetry are used to investigate the molecular dynamics, free volume and thermal behaviour of Poly(ethyleneimine), PEI, canopy in liquid-like Nanoparticle-Organic...