D.M. Burland, J.E. Rice, et al.
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
The Wagner (lognormal) time decay function is used to describe decay of the second harmonic signal due to electric field poled-order relaxation in the guest-host polymer system 20 wt% lophine 1 in Ultem®. This function can be related to a Gaussian distribution of Arrhenius activation energies. From the temperature dependence of the relaxation process one can determine the average value for the activation energy. In the present case a value of 40 kcal/mol is found consistent with experimental values obtained for a variety of other thermally activated processes in polymers. © 1995 Elsevier Science B.V. All rights reserved.
D.M. Burland, J.E. Rice, et al.
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
J.I. Thackara, J.C. Chon, et al.
Applied Physics Letters
D.M. Burland, Ch. Bräuchle
The Journal of Chemical Physics
D.M. Burland, G. Castro
The Journal of Chemical Physics