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 …
Instability, self-organization and pattern formation in thin soft films
The free surface of a thin soft polymer film is often found to become unstable and self-
organizes into various meso-scale structures. In this article we classify the instability of a thin …
organizes into various meso-scale structures. In this article we classify the instability of a thin …
Residual stresses in thin polymer films cause rupture and dominate early stages of dewetting
In attempting to reduce the size of functional devices, the thickness of polymer films has
reached values even smaller than the diameter of the unperturbed molecule. However …
reached values even smaller than the diameter of the unperturbed molecule. However …
Formation mechanism of high-density, flattened polymer nanolayers adsorbed on planar solids
Thermal annealing is one of the most indispensable polymer fabrication processes and
plays essential roles in controlling morphologies and properties of polymeric materials. We …
plays essential roles in controlling morphologies and properties of polymeric materials. We …
Can thickness and interfacial interactions univocally determine the behavior of polymers confined at the nanoscale?
The behavior of polymers confined in ultrathin films (thickness< 200 nm) can sensitively
differ from that observed in macroscopic samples. Based on the simple arguments of finite …
differ from that observed in macroscopic samples. Based on the simple arguments of finite …
Quantifying Residual Stress in Nanoscale Thin Polymer Films via Surface Wrinkling
Residual stress, a pervasive consequence of solid materials processing, is stress that
remains in a material after external forces have been removed. In polymeric materials …
remains in a material after external forces have been removed. In polymeric materials …
Physical aging of polystyrene/gold nanocomposites and its relation to the calorimetric T g depression
The aim of this work is to study the effect of gold nanoparticles on the segmental dynamics,
glass transition (Tg) and physical aging of polystyrene (PS). To do so, PS/gold …
glass transition (Tg) and physical aging of polystyrene (PS). To do so, PS/gold …
Physical aging of confined glasses
RD Priestley - Soft matter, 2009 - pubs.rsc.org
The properties of glasses confined to the nanometre length-scale can deviate substantially
from those found in bulk samples. Physical aging, the structural relaxation of glasses toward …
from those found in bulk samples. Physical aging, the structural relaxation of glasses toward …
Residual stress relaxation and stiffness in spin-coated polymer films: Characterization by ellipsometry and fluorescence
Ellipsometry and fluorescence are used via measurements of film thickness and pyrenyl dye
emission spectral shape, respectively, to characterize residual stress relaxation in …
emission spectral shape, respectively, to characterize residual stress relaxation in …
Accelerated physical aging in PMMA/silica nanocomposites
We have monitored the physical aging process below the glass transition temperature (Tg)
of poly (methyl methacrylate) PMMA/silica nanocomposites by means of broadband …
of poly (methyl methacrylate) PMMA/silica nanocomposites by means of broadband …