Concepts and conflicts in nanoparticles reinforcement to polymers beyond hydrodynamics

Y Song, Q Zheng - Progress in Materials Science, 2016 - Elsevier
With substantial progresses in reinforcement mechanism of nanoparticle filled polymers
(NPFPs) beyond the hydrodynamic limit, now is the time to reconsider this topic …

Polarization mechanism underlying strongly enhanced dielectric permittivity in polymer composites with conductive fillers

B Li, CA Randall, E Manias - The Journal of Physical Chemistry C, 2022 - ACS Publications
Polymer composites filled with conductive fillers can demonstrate ultrahigh effective
dielectric permittivity, which is generally attributed to an enhanced Maxwell–Wagner–Sillars …

Viscosity reduction in polymer nanocomposites: Insights from dynamic neutron and X‐ray scattering

E Senses, CL Kitchens… - Journal of Polymer Science, 2022 - Wiley Online Library
The addition of nanoparticles to a polymer matrix can in certain cases induce a reduction in
viscosity, with respect to the pure matrix, in the resulting composites. This counterintuitive …

Fragility and cooperative motion in a glass-forming polymer–nanoparticle composite

BAP Betancourt, JF Douglas, FW Starr - Soft Matter, 2013 - pubs.rsc.org
Polymer–nanoparticle composites play a vital role in ongoing materials development. The
behavior of the glass transition of these materials is important for their processing and …

Relaxation dynamics of nanoparticle-tethered polymer chains

SA Kim, R Mangal, LA Archer - Macromolecules, 2015 - ACS Publications
Relaxation dynamics of nanoparticle-tethered cis-1, 4-polyisoprene (PI) are investigated
using dielectric spectroscopy and rheometry. A model system composed of polymer chains …

Chain and segmental dynamics of poly (2-vinylpyridine) nanocomposites

AP Holt, JR Sangoro, Y Wang, AL Agapov… - …, 2013 - ACS Publications
The influence of different oxide nanoparticles on segmental and chain dynamics of poly (2-
vinylpyridine) is investigated by broadband dielectric spectroscopy (BDS), dynamic …

Interfacial interactions and segmental dynamics of poly (vinyl acetate)/silica nanocomposites

Y Lin, L Liu, G Xu, D Zhang, A Guan… - The Journal of Physical …, 2015 - ACS Publications
We investigate the interfacial interactions and segmental dynamics of hydrophilic and
hydrophobic (calcined) silica nanoparticle (NP) filled poly (vinyl acetate)(PVAc) composites …

Reinforcement and Payne effect of hydrophobic silica filled natural rubber nanocomposites

H Xu, X Fan, Y Song, Q Zheng - Composites Science and Technology, 2020 - Elsevier
Nanoparticles significantly reinforce rubber and enhance nonlinear rheological behaviors
while the underlining mechanisms are not yet clear. Herein a time-concentration …

Thermodynamic–dynamic interrelations in glass-forming polymer fluids

X Xu, JF Douglas, WS Xu - Macromolecules, 2022 - ACS Publications
There is a long history of trying to understand the dynamics of glass-forming and other
condensed materials exhibiting highly anharmonic interparticle interactions based on their …

Polystyrene-grafted silica nanoparticles: Investigating the molecular weight dependence of glass transition and fragility behavior

S Askar, L Li, JM Torkelson - Macromolecules, 2017 - ACS Publications
Polymer-tethered nanoparticles provide a strategy to improve particle dispersion in polymer
nanocomposites and as materials themselves can exhibit self-healing behavior and …