Communication: Identical temperature dependence of the time scales of several linear-response functions of two glass-forming liquids

摘要: The frequency-dependent dielectric constant, shear and adiabatic bulk moduli, longitudinal thermal expansion coefficient, specific heat have been measured for two van der Waals glass-forming liquids, tetramethyl-tetraphenyl-trisiloxane (DC704) 5-polyphenyl-4-ether. Within the experimental uncertainties loss-peak frequencies of response functions identical temperature dependence over a range temperatures, which Maxwell relaxation time varies more than nine orders magnitude. scales are ordered from fastest to slowest as follows: Shear modulus, heat. ordering is discussed in light recent conjecture that liquids strongly correlating, i.e., approximate single-parameter liquids.