Published November 16, 2004
| public
Journal Article
Chain Anisotropy of Side-Group Liquid Crystalline Polymers in Nematic Solvents
Abstract
We demonstrate a method for measuring the anisotropy of a side group liquid crystalline polymer (SGLCP) in a perdeuterated nematic solvent using small-angle neutron scattering. In this system scattering originates from both the polymer backbone and the large pendant side groups, causing the measured anisotropy to vary with molecular weight. Since it is the backbone anisotropy that is of interest, we show how to mathematically account for scattering due to the side groups. Using a molecular weight series of SGLCPs that have an oblate conformation, this method yields a constant ratio of the backbone radii independent of molecular weight and spacer length.
Additional Information
© 2004 American Chemical Society. Received 17 June 2003. Published online 22 October 2004. Published in print 1 November 2004. The authors acknowledge financial support from the AFOSR LC-MURI (f4962-97-1-0014) and the ARCS foundation. We thank Neal Scruggs and Rafael Verduzco for help with the neutron scattering experiments and Ed Lang from IPNS for helping with the SANS setup.Additional details
- Eprint ID
- 79290
- Resolver ID
- CaltechAUTHORS:20170724-093120654
- f4962-97-1-0014
- Air Force Office of Scientific Research (AFOSR)
- ARCS Foundation
- Created
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2017-07-24Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field