Direct visualization and characterization of interfacially adsorbed polymer atop nanoparticles and within nanocomposites
Irreversible adsorption at polymer/substrate interfaces has been reported to influence glassy
properties in thin films. However, consideration has yet to be extended to the nanocomposite …
properties in thin films. However, consideration has yet to be extended to the nanocomposite …
Exchange lifetimes of the bound polymer layer on silica nanoparticles
Understanding the structure and dynamics of the bound polymer layer (BL) that forms on
favorably interacting nanoparticles (NPs) is critical to revealing the mechanisms responsible …
favorably interacting nanoparticles (NPs) is critical to revealing the mechanisms responsible …
Long-term aging in miscible polymer nanocomposites
We find that the initial, solvent-cast state of nanoparticles (NPs) in a polymer matrix
temporally evolves during thermal annealing such that, at steady state, NPs maximize their …
temporally evolves during thermal annealing such that, at steady state, NPs maximize their …
Review and reproducibility of forming adsorbed layers from solvent washing of melt annealed films
Recent studies suggest chain adsorption in the melt may be responsible for a number of
property changes in thin films by making correlations between the residual adsorbed layer …
property changes in thin films by making correlations between the residual adsorbed layer …
Glass transition of the surface monolayer of polystyrene films with different film thicknesses and supporting surfaces
Surface glass-transition temperature (T gsurf) and transition width (W) within 1 nm of the
surface were measured by monitoring a qualitative change in the contact angle or density of …
surface were measured by monitoring a qualitative change in the contact angle or density of …
Intensified Nonequilibrium Effect of Polymer Nanocomposites with Decreasing Nanoparticle Size
What are the most important and decisive parameters that determine the structure and the
property of polymer nanocomposites (PNCs)? Previous studies answered that controlling …
property of polymer nanocomposites (PNCs)? Previous studies answered that controlling …
Direct observation of conformational relaxation of polymer chains at surfaces
HK Nguyen, M Inutsuka, D Kawaguchi… - ACS Macro …, 2018 - ACS Publications
Sum-frequency generation spectroscopy was employed to follow the conformation evolution
of polystyrene chains at the surface of a spin-coated film in a temperature-ramping mode as …
of polystyrene chains at the surface of a spin-coated film in a temperature-ramping mode as …
Viscosity and fragility of confined polymer nanocomposites: a tale of two interfaces
Viscosity and fragility are key parameters determining the processability and thermo-
mechanical stability of glassy polymers and polymer nanocomposites (PNCs). In confined …
mechanical stability of glassy polymers and polymer nanocomposites (PNCs). In confined …
Tg Confinement Effect of Random Copolymers of 4-tert-Butylstyrene and 4-Acetoxystyrene with Different Compositions
We observe that the T g confinement effect of polymer films can saturate with polymer–
substrate interaction. Thickness dependences of the glass transition temperature, T g (h 0) …
substrate interaction. Thickness dependences of the glass transition temperature, T g (h 0) …
Natural rubber–SiO 2 nanohybrids: interface structures and dynamics
Homogeneous dispersion of silica nanoparticles (SiO2 NPs) in natural rubber (NR) is a key
challenge for engineering high-performance nanocomposites and elucidation of their …
challenge for engineering high-performance nanocomposites and elucidation of their …