The effect of pressure on the structural and secondary relaxations in 1,1′-bis -methoxyphenyl) cyclohexane
S Hensel-Bielowka, J Ziolo, M Paluch… - The Journal of chemical …, 2002 - pubs.aip.org
The dielectric spectrum of the organic glass former 1, 1′-bis (p-methoxyphenyl)
cyclohexane was measured over a range of temperatures and pressures, corresponding to
a variation of the structural relaxation time, τ α, by 8 decades. The temperature dependence
of τ α corresponded to a fragility equal to 72, which is consistent with the correlation of same
with the shape (breadth) of the relaxation function. The dependence on pressure of τ α could
be described as a simple activated process, with a pressure-independent activation volume …
cyclohexane was measured over a range of temperatures and pressures, corresponding to
a variation of the structural relaxation time, τ α, by 8 decades. The temperature dependence
of τ α corresponded to a fragility equal to 72, which is consistent with the correlation of same
with the shape (breadth) of the relaxation function. The dependence on pressure of τ α could
be described as a simple activated process, with a pressure-independent activation volume …
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