Morphological analysis of ionomers. Progress report, January 1, 1993--December 31, 1993
This paper reports work on the study of ion containing polymers. X-ray absorption fine structure studies have been carried out on lightly sulfonated polystyrenes and polyurethane cationomers. In the polystyrenes, nickel, zinc, and cadmium-neutralized ionomers were studied. A simulation package, FEFF5, was available to model the polystyrenes, and the experimental data was input into the simulation to arrive at an atomic arrangement which fit the experimental data. The cationomers structure is still unresolved, and the question of water absorption is a problem for this system. NMR of {sup 23}Na is also being used to study the local environment of the cation in sodium-neutralized lightly sulfonated polystyrene. Small angle neutron scattering experiments were also performed to explore the role of temperature in solution of sodium-neutralized carboxy-telechelic polystyrene ionomers in toluene. By adjusting the labelling levels and the angular range, the neutron scattering experiments probe either the aggregate structure or the single chain structure.
- Research Organization:
- Wisconsin Univ., Madison, WI (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-88ER45370
- OSTI ID:
- 10196081
- Report Number(s):
- DOE/ER/45370--T1; ON: DE94003660
- Country of Publication:
- United States
- Language:
- English
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