Small Angle X-ray Scattering Studies of Poly(arylethinylene): Molecular Conformation in Solution and Orientational Ordering in Rod-coil Ionomer Blends
- SLAC
Poly(pyridyl/phenyl-ethinylene) polymers of tuned rigidity/flexibility were synthesized and their molecular conformation in solution determined by small angle x-ray scattering. These polymers were used as molecularly dispersed reinforcing components in ionomer blends with partially sulfonated polystyrene. Homogeneous ionomer blends were formed by acid-base interactions between the two blend components. Small angle x-ray scattering revealed that in the case of rodlike or semiflexible poly(pyridyl/phenyl-ethinylenes) an elongation induced orientational ordering is obtained. However blend samples prepared with flexible poly(pyridyl/phenyl-ethinylene) polymers do not show any observable orientation. The orientation parameter varied systematically with the rigidity/flexibility of the reinforcing component, as did the Young modulus determined from stress strain measurements.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 784893
- Report Number(s):
- SLAC-PUB-8788
- Country of Publication:
- United States
- Language:
- English
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