In situ characterization of liquid crystalline polymer flow using neutron scattering
- Univ. of Tennessee, Knoxville, TN (United States)
The alignment during processing of a liquid crystalline polymer (LCP) results in the unusual ultimate properties and unique physics of LCPs. We are interested in understanding the coupling of shear flow to the orientation of a liquid crystalline polymer in solution. We will describe a method for determining the change in orientation of an LCP by shear flow with neutron scattering. We will discuss results of the application of this technique to solutions of poly (benzyl L-glutamate) (PBLG) in deuterated benzyl alcohol and hydroxypropylcellulose (HPC) in deuterated water. It will also be shown that the neutron scattering results correlate well to the simultaneously measured shear viscosity, which allows the use of this technique to a greater audience as the neutron and viscosity measurements can be completed once and then viscosity can serve as a secondary standard in the future.
- OSTI ID:
- 28926
- Report Number(s):
- CONF-941195-; TRN: 95:008719
- Resource Relation:
- Conference: 10. annual ASM/ESD advanced composites conference, Dearborn, MI (United States), 7-10 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Advanced composites X; PB: 625 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Rheology of rod/random coil polymer systems, and interpenetrating networks
Photochromic liquid hydrogels as hosts for holographic materials