Results 11 to 20 of about 2,990,046 (310)
Molecular Signatures of the Glass Transition in Polymers [PDF]
, 2022 The glass transition temperature (Tg) is one of the most fundamental properties of polymers. Tg is predicted as a sudden change in a “macroscopic” quantity (e.g. compressibility).
Connor, Coley +2 more
core +2 more sources
The structure and glass transition behavior of PLLA under the influence of gamma radiation [PDF]
Hemijska Industrija, 2010 The influence of gamma radiation on the structure and glass transition behavior of poly-L-lactide (PLLA) has been studied. Since PLLA exposed to high-energy radiation in the presence of air is prone to chain scission reactions and large degradation ...
Miličević Dejan S. +6 more
doaj +1 more source
Second-order Phase Transition Behavior behind Polymer Glass Transition [PDF]
, 2022 Glass transition has similarity to the second-order phase transition in temperature dependent changes in entropy, non-Arrhenius viscosity, and heat capacity of glass forming materials. However, it has primarily been considered to be not phase transition.
Taihei, Takahashi +4 more
core +2 more sources
Mechanical relaxation in glasses and at the glass transition [PDF]
Physical Review B, 2001 The Gilroy-Phillips model of relaxational jumps in asymmetric double-well potentials, developed for the Arrhenius-type secondary relaxations of the glass phase, is extended to a formal description of the breakdown of the shear modulus at the glass transition, the flow process.
openaire +3 more sources
Water’s second glass transition [PDF]
Proceedings of the National Academy of Sciences, 2013 Significance Water is not only the most important liquid for life on Earth, but also one of the most anomalous liquids. These anomalies become most evident in the supercooled state at subzero temperatures. We show from dielectric and calorimetric studies that water in the deeply supercooled regime, below –120 °C ...
Katrin Amann-Winkel +6 more
openaire +3 more sources
Theoretical Estimate of the Glass Transition Line of Yukawa One-Component Plasmas
Molecules, 2021 The mode coupling theory of supercooled liquids is combined with advanced closures to the integral equation theory of liquids in order to estimate the glass transition line of Yukawa one-component plasmas from the unscreened Coulomb limit up to the ...
Federico Lucco Castello +1 more
doaj +1 more source
Theories of glass formation and the glass transition [PDF]
Reports on Progress in Physics, 2014 This key-issues review is a plea for a new focus on simpler and more realistic models of glass-forming fluids. It seems to me that we have too often been led astray by sophisticated mathematical models that beautifully capture some of the most intriguing features of glassy behavior, but are too unrealistic to provide bases for predictive theories.
openaire +5 more sources
Microscopic versus Macroscopic Glass Transition(s) in Blends of Industrial Interest [PDF]
EPJ Web of Conferences, 2022 We investigate by neutron scattering and calorimetry a mixture of styrene-butadiene rubber (SBR) and a commercial resin. The neat materials present a large dynamic contrast, having SBR a much lower glass-transition temperature than the resin.
Shafqat Numera +7 more
doaj +1 more source
Configurons: Thermodynamic Parameters and Symmetry Changes at Glass Transition
Entropy, 2008 Thermodynamic parameters of configurons – elementary excitations resulting from broken bonds in amorphous materials – are found from viscosity-temperature relationships.
Michael I. Ojovan
doaj +1 more source
Glass Transition and the Coulomb Gap in Electron Glasses [PDF]
Physical Review Letters, 2004 We establish the connection between the presence of a glass phase and the appearance of a Coulomb gap in disordered materials with strongly interacting electrons. Treating multiparticle correlations in a systematic way, we show that in the case of strong disorder a continuous glass transition takes place whose Landau expansion is identical to that of ...
Mueller, M., Ioffe, L. B.
openaire +3 more sources