Results 11 to 20 of about 291,825 (313)
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
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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
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Entropy of Mixing and the Glass Transition of Amorphous Mixtures
Entropy, 2008 Different equations have been proposed for estimating the glass transition temperature of amorphous mixtures. All such expressions lack a term to account for the effect of the entropy of mixing on the glass transition.
Rodolfo Pinal
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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
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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.
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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, can even exist ...
Katrin Amann-Winkel +6 more
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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.
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Does Explicit Polarizability Improve Molecular Dynamics Predictions of Glass Transition Temperatures of Ionic Liquids? [PDF]
, 2022 Molecular-dynamics simulations are used for predictions of the glass transition temperatures for a test set of 5 aprotic ionic liquids. Glass transitions are localized with the trend-shift method analyzing volumetric and transport properties of bulk ...
Ctirad, Cervinka, Martin, Klajmon
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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
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Polymer Relaxation Time Enhancement at Temperatures above Glass Transition Temperatures Predicted by Idealized Mode-Coupling Theory [PDF]
, 2022 The mode-coupling theory of glass transition predicts the relaxation time divergence of glass-forming materials at the crossover temperature, which is approximately 1.2 times the calorimetric glass transition temperature. However, this divergence has not
Risa, Fukase +5 more
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