Nonionic polymer-salt interactions in dilute solution: the poly(ethylene oxide)/LiClO_4/methanol system.
Abstract
The interaction of lithium perchlorate with high molecular weight poly(ethylene oxide) in dilute methanol solutions was studied using cloud point measurements, static and dynamic light scattering, and viscometry. For both good solvent and poor solvent conditions, PEO/LiClO4 complexes form in coil outer portions and charge- charge repulsions between these complexes swell PEO coils and result in repulsive interactions between coils. A noteworthy consequence of this nonionic polymer to polyelectrolyte conversion is the ``salting in'' of PEO in methanol by LiClO_4.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 1996
- Bibcode:
- 1996APS..MAR.J3203S