초록 |
Adsorbed polymers at nanoparticle/polymer interfaces play an important role as they are responsible for reducing the intrinsic incompatibility between nanoparticles and polymers in polymer nanocomposites (PNCs). While tremendous efforts have been made to characterize the existence of immobilized polymers, systematic understanding of structure and dynamics under different processing conditions is still lacking. Here, we report that the initial dispersing solvent, not present after producing PNC, drives non-equilibrium effects on polymer chain dynamics at interfaces. Extensive small angle scattering and rheometry experiments were employed to reveal the nonequilibrium effect of polymer nanocomposites. |