Dielectric Properties of 4-(2,3-Epoxypropoxy)- and 4-Propoxy-4 -alkoxyazoxybenzenes
2002
The temperature dependences of the dielectric permittivity of 4-(2,3-epoxypropoxy)-4'-alkoxyazoxybenzenes (n = 1-10) and 4-propoxy-4'-alkoxyazoxybenzenes (n = 1-10) with mesomorphic properties were measured by dielectrometry. The introductrion of the terminal epoxy group increases the dielectric permittivity and its anisotropy. The dipole moments of molecules of 4-(2,3-epoxypropoxy)-4'-alkoxyazoxybenzenes (n = 1-10) and 4-propoxy-4'-alkoxyazoxybenzenes (n = 1-10) were determined by the second Debye method. The epoxy-substituted azoxybenzenes have higher dipole moments than their structural analogs.
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