Remarks on the Kohlrausch exponent and the Vogel–Fulcher–Tamann law in glass-forming materials

1999 ◽  
Vol 260 (1-2) ◽  
pp. 164-166 ◽  
Author(s):  
Jacques Rault
Keyword(s):  
Glass Forming ◽  
Glass Forming Materials

Phenoxazine and N-phenyl-1-naphtylamine-based enamines as hole-transporting glass-forming materials

2009 ◽  
Vol 159 (11) ◽  
pp. 1014-1018 ◽  
Author(s):  
R. Paspirgelyte ◽  
J.V. Grazulevicius ◽  
S. Grigalevicius ◽  
V. Jankauskas
Keyword(s):  
Glass Forming ◽  
Hole Transporting ◽  
Glass Forming Materials

scholarly journals Fast Vibrational Modes and Slow Heterogeneous Dynamics in Polymers and Viscous Liquids

2019 ◽  
Vol 20 (22) ◽  
pp. 5708 ◽  
Author(s):  
Francesco Puosi ◽  
Antonio Tripodo ◽  
Dino Leporini
Keyword(s):  
Einstein Relation ◽  
Special Focus ◽  
Vibrational Dynamics ◽  
Viscous Liquids ◽  
Dynamical Heterogeneity ◽  
Glass Forming ◽  
Slowing Down ◽  
Molecular Glass ◽  
Distinctive Aspect ◽  
Glass Forming Materials

Many systems, including polymers and molecular liquids, when adequately cooled and/or compressed, solidify into a disordered solid, i.e., a glass. The transition is not abrupt, featuring progressive decrease of the microscopic mobility and huge slowing down of the relaxation. A distinctive aspect of glass-forming materials is the microscopic dynamical heterogeneity (DH), i.e., the presence of regions with almost immobile particles coexisting with others where highly mobile ones are located. Following the first compelling evidence of a strong correlation between vibrational dynamics and ultraslow relaxation, we posed the question if the vibrational dynamics encodes predictive information on DH. Here, we review our results, drawn from molecular-dynamics numerical simulation of polymeric and molecular glass-formers, with a special focus on both the breakdown of the Stokes–Einstein relation between diffusion and viscosity, and the size of the regions with correlated displacements.

High-pressure experiments as a novel perspective to study the molecular dynamics of glass-forming materials confined at the nanoscale

Nanoscale ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 10600-10608
Author(s):  
Magdalena Tarnacka ◽  
Michał Mierzwa ◽  
Ewa Kamińska ◽  
Kamil Kamiński ◽  
Marian Paluch
Keyword(s):  
High Pressure ◽  
Anodic Aluminum Oxide ◽  
Diglycidyl Ether ◽  
Dielectric Studies ◽  
Glass Forming ◽  
Anodic Aluminum ◽  
Bisphenol A Diglycidyl Ether ◽  
The Mean ◽  
Anodic Aluminum Oxide Templates ◽  
Glass Forming Materials

We report the pioneering high-pressure dielectric studies on the dynamics of a model van der Waals glass-forming liquid bisphenol-A diglycidyl ether infiltrated into anodic aluminum oxide templates of the mean pore sizes, d = 150 and d = 18 nm.

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