SynopsisDielectric relaxation spectra of a series of polyhydroxyether copolymers have been obtained. It has been shown that the systems exhibit very similar relaxation spectra with the (~(2'~) process a function of molecular weight. All systems exhibit two secondary relaxations: p (ca. 240 K) and y (ca. 180 K). These have been assigned as hydroxyl motion and main-chain motion, respectively.The peak positions are not functions of composition in the ranges studied. The effect of sorbed water on the relaxation spectra is discussed.

dicarbazolylpropan u and Professor E. P. Kyba and his group at The Unive. >ity of Texas at Austin for their help in synthesizing the ;,3-dinaphthylpropane.

No abstract

No abstract

No abstract