About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Macromolecules
Paper
Rheooptical Investigation of the Transition Behavior of Polyphosphazenes
Abstract
Wide-angle X-ray diffraction (WAXD), small-angle light, light scattering and birefringence were used to investigate the temperature dependence of the morphology of poly[bis(trifluoroethoxy)phosphazene]. Experiments conducted on solution cast films revealed a spherulitic morphology in the range 25-225 °C. Structural changes, associated with the transformation to the mesomorphic state, were found to occur in the temperature range 70-90 °C. Above the melting point, the material was isotropic by optical techniques and amorphous by WAXD. The results are discussed in terms of changes in molecular ordering. © 1984, American Chemical Society. All rights reserved.