Insight into Clustering in Poly(ethylene oxide) Solutions
Abstract
Poly(ethylene oxide) solutions are characterized by a clustering effect that has been extensively discussed in the literature. The origin of this clustering has remained elusive. Using Small Angle Neutron Scattering from PEO solutions in various deuterated solvents, the possible causes of clustering that have been given in the literature will be analyzed systematically. These include possible PEO crystallization, a subtle phase transition whereby a concentrated phase coexists with free polymer coils, impurities in water, hydrogen-bond physical crosslinking and finally chain ends effect. All clues will be analyzed. New data pointing to definite conclusions will be presented.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2004
- Bibcode:
- 2004APS..MAR.P4003H