 |
A New Vogel-Like Law: Ionic Conductivity, Dielectric Relaxation and Viscosity Near the Glass Transition
Authors: John T. Bendler; John J. Fontanella; Michael F. Shlesinger; NAVAL ACADEMY ANNAPOLIS MD DEPT OF PHYSICS |
|
Abstract:
A model, based on defect diffusion, is developed that describes temperature and pressure dependence of dielectric relaxation, ionic conductivity and viscosity of glass-forming liquids near the glass transition temperature. The resultant expressions for ionic conductivity are compared with experimental results for the polymer electrolytes poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG) containing LiCF3SO3. Those for dielectric relaxation are compared with experimental results for poly(propylene oxide) (PPO) and poly(vinyl acetate). The theoretical viscosity law is compared to experiments on propylene carbonate (PC).
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Technical rept. 1 Jun 2000-31 May 2001 |
| Pages: |
18 |
| Report Date: |
01 JUL 2001 |
| Report Number: |
A054393 |
|
|
|
|
|
|
| |
|
|
Keywords relating to this report:
Email This Abstract
