Glass transition of polymers in bulk, confined geometries, and near interfaces
When cooled or pressurized, polymer melts exhibit a tremendous reduction in molecular
mobility. If the process is performed at a constant rate, the structural relaxation time of the …
mobility. If the process is performed at a constant rate, the structural relaxation time of the …
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 …
(NPFPs) beyond the hydrodynamic limit, now is the time to reconsider this topic …
The relationship of dynamical heterogeneity to the Adam-Gibbs and random first-order transition theories of glass formation
We carefully examine common measures of dynamical heterogeneity for a model polymer
melt and test how these scales compare with those hypothesized by the Adam and Gibbs …
melt and test how these scales compare with those hypothesized by the Adam and Gibbs …
Interfacial mobility scale determines the scale of collective motion and relaxation rate in polymer films
Thin polymer films are ubiquitous in manufacturing and medical applications, and there has
been intense interest in how film thickness and substrate interactions influence film …
been intense interest in how film thickness and substrate interactions influence film …
X-ray photon correlation spectroscopy
OG Shpyrko - Journal of synchrotron radiation, 2014 - journals.iucr.org
In recent years, X-ray photon correlation spectroscopy (XPCS) has emerged as one of the
key probes of slow nanoscale fluctuations, applicable to a wide range of condensed matter …
key probes of slow nanoscale fluctuations, applicable to a wide range of condensed matter …
Fragility and cooperative motion in a glass-forming polymer–nanoparticle composite
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 …
behavior of the glass transition of these materials is important for their processing and …
Long-wavelength fluctuations and the glass transition in two dimensions and three dimensions
Phase transitions significantly differ between 2D and 3D systems, but the influence of
dimensionality on the glass transition is unresolved. We use microscopy to study colloidal …
dimensionality on the glass transition is unresolved. We use microscopy to study colloidal …
Physics in ordered and disordered colloidal matter composed of poly (N-isopropylacrylamide) microgel particles
This review collects and describes experiments that employ colloidal suspensions to probe
physics in ordered and disordered solids and related complex fluids. The unifying feature of …
physics in ordered and disordered solids and related complex fluids. The unifying feature of …
Polymer glass formation: Role of activation free energy, configurational entropy, and collective motion
We provide a perspective on polymer glass formation, with an emphasis on models in which
the fluid entropy and collective particle motion dominate the theoretical description and data …
the fluid entropy and collective particle motion dominate the theoretical description and data …
Direct measurements of growing amorphous order and non-monotonic dynamic correlations in a colloidal glass-former
The transformation of flowing liquids into rigid glasses is thought to involve increasingly
cooperative relaxation dynamics as the temperature approaches that of the glass transition …
cooperative relaxation dynamics as the temperature approaches that of the glass transition …