GLASS TRANSITIONS IN IONIC POLYMERS.
Abstract
The glass transition temperatures of an inorganic anionic phosphate polymer system was studied over a wide range of counterions. It was shown that the glass transition temperature could be varied between -10C to + 520C, and that a plot of the glass Transition Temperature versus the ratio of the cation change (g) to internuclear distance between the cation and the oxygen on the polymer backbone ('a') yielded a straight line over the entire temperature range; a theoretical justification for this linearity was presented. It was further shown that the increase in the glass transition with (g/a) is due not only to an increase in the interchain forces, but also to an increase in the carrier to internal rotation between neighboring groups. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 20, 1965
- Accession Number
- AD0625330
Entities
People
- A. Eisenberg
- H. Farb
- L. G. Cool
Organizations
- University of California, Los Angeles