Scaling of the rotational relaxation of tracers in o-terphenyl: a linear and nonlinear ESR study
Article Abstract:
A study of diffusion in liquids presents new experimental efforts designed to gain additional insights concerning the reorientation supercooled liquids. The study specifically investigated the rotational dynamics of stiff, molecular tracers with different symmetries in supercooled and glassy O-terphenyl both on the short-time and long-time scale. Among other results, it will be shown that the temperature dependence of the correlation times exhibits three clearly defined regimes on both the short- and long-time scales irrespective of the tracer.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Molecular dynamics and crystallization behavior of chiral isooctyloxycyanobiphenyl as studied by dielectric relaxation spectroscopy
Article Abstract:
A study of the molecular motions in glass-forming liquids and amorphous polymers using a number of techniques reports on dielectric relaxation spectroscopy data for chiral isooctyloxycyanobiphenyl during both cooling and heating experiments. Isooctyloxycyanobiphenyl was found to initially form a supercooled liquid and then a glass upon cooling. It crystallized when the supercooled liquid was heated above glass transition temperature.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Nonexponential primary relaxation in supercooled salol
Article Abstract:
A study was conducted on the relaxation phenomena of supercooled liquids near the laboratory glass transition. The investigation applied a free-energy landscape model used for the analysis of alpha-relaxation in supercooled liquids to a reevaluation of the impulsive stimulated light scattering data and the results of dielectric observations obtained from experiments on supercooled salol. Findings and conclusions are discussed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
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