ABSTRACT

The orientational relaxation kinetics is analyzed by isothermal decay experiments and stimulated current measurements for side chain EO-polymers with different substituents. The polar relaxation does not obey thermorheological simplicity but shows a strong broadening of the relaxation time distribution in the glassy state. The temperature dependence of relaxation times as determined by dielectric spectroscopy and polar decay measurements could be described consistently by the Adams—Gibbs equation. Aging effects are present in most compounds as shown by a strong correlation between the relaxation behavior and the thermal history of the samples.