Densities and kinematic viscosities of binary mixtures of methanol + 2,5,8-trioxanonane, or +
2,5,8,11-tetraoxadodecane, or + 2,5,8,11,14-pentaoxapentadecane have been measured over the
whole composition range at 293.15, 298.15 and 303.15 K and atmospheric pressure. Densities
were determined using a vibrating-tube density meter and viscosities were measured with an
automatic Ubbelohde capillary viscometer. The experimental results have been used to calculate
the excess molar volumes, V E
m
, and the deviations of dynamic viscosity, . Moreover, viscosity
data were correlated by some semi-empirical equations (Grunberg-Nissan, Hind, Frenkel, Katti-
Chaudhri, McAllister and Heric). The large and negative V E
m
and the positive values obtained
seem to remark the predominant contribution of free volume effects on interactional effects to
these thermophysical properties.
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