The addition of nanoparticles (NPs) to a polymer matrix, forming a polymer nanocomposite
(PNC), is known to alter the microscopic dynamic processes of both species which leads to …

We use scaling theory to derive the time dependence of the mean-square displacement⟨ Δ r
2⟩ of a probe nanoparticle of size d experiencing thermal motion in polymer solutions and …

We propose a hop** mechanism for diffusion of large nonsticky nanoparticles subjected to
topological constraints in both unentangled and entangled polymer solids (networks and …

Nanoparticle–polymer composites, or polymer–nanoparticle composites (PNCs), exhibit
unusual mechanical and dynamical features when the particle size approaches the random …

Recent advances in optical microscopy instrumentation and processing techniques have led
to imaging that both breaks the diffraction barrier and enables sub-pixel resolution. This …

Large-scale molecular dynamics simulations show that nanoparticle (NP) diffusivity in
weakly interacting mixtures of NPs and polymer melts has two very different classes of …

Dynamic properties play an important role in designing functional polymer nanocomposites,
impacting molecular transport and phase separation kinetics. When nanoparticle (NP) size …

We measure the center-of-mass diffusion of silica nanoparticles (NPs) in entangled poly (2-
vinylpyridine)(P2VP) melts using Rutherford backscattering spectrometry. While these NPs …

We propose a statistical dynamical theory for the violation of the hydrodynamic Stokes-
Einstein (SE) diffusion law for a spherical nanoparticle in entangled and unentangled …

We investigated the dynamics of gold nanoparticles (NPs) within an entangled liquid of poly
(n-butyl methacrylate)(PBMA) above the glass transition temperature (T g). The experiments …