Results 21 to 30 of about 1,036,950 (301)

Influence of Carbon Dioxide on the Glass Transition of Styrenic and Vinyl Pyridine Polymers: Comparison of Calorimetric, Creep, and Rheological Experiments

open access: yesAdvances in Polymer Technology, 2022
The glass transition of amorphous polymers determines the mobility of polymer chains and the time scale of relaxation processes. The glass transition temperature is reduced by the presence of low molecular weight molecules, e.g., dissolved gases or ...
Felix Harden   +2 more
doaj   +1 more source

Entropy of Mixing and the Glass Transition of Amorphous Mixtures

open access: yesEntropy, 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
doaj   +1 more source

The structure and glass transition behavior of PLLA under the influence of gamma radiation [PDF]

open access: yesHemijska 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

Evidence of a glass transition in a 10-state non-mean-field Potts glass [PDF]

open access: yes, 2011
Potts glasses are prototype models that have been used to understand the structural glass transition. However, in finite space dimensions a glass transition remains to be detected in the 10-state Potts glass. Using a one-dimensional model with long-range
Andrist, Ruben S.   +2 more
core   +3 more sources

Water’s second glass transition [PDF]

open access: yesProceedings 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
openaire   +3 more sources

Theories of glass formation and the glass transition [PDF]

open access: yesReports 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

Higher order glass-transition singularities in colloidal systems with attractive interactions [PDF]

open access: yes, 1999
The transition from a liquid to a glass in colloidal suspensions of particles interacting through a hard core plus an attractive square-well potential is studied within the mode-coupling-theory framework.
Arévalo, P.   +10 more
core   +7 more sources

Theoretical Estimate of the Glass Transition Line of Yukawa One-Component Plasmas

open access: yesMolecules, 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

The fluxing effect of fluorine at magmatic temperatures (600-800 °C): A scanning calorimetric study [PDF]

open access: yes, 1992
The effect of F on the glass transition behavior of albite, diopside, and four other silicate melts has been investigated using scanning calorimetry. The addition of F to all silicate melts investigated results in a strong, nonlinear decrease of the ...
Dingwell, Donald B., Webb, Sharon L.
core   +1 more source

Microscopic versus Macroscopic Glass Transition(s) in Blends of Industrial Interest [PDF]

open access: yesEPJ 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

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