Mechanical Properties versus Morphology of Ordered Polymers
Abstract
Morphological techniques in conjunction with mechanical testing have been employed to determine the relationships between mechanical properties and morphology of a new class of high strength, high modulus, thermally stable aromatic heterocyclic polymers. The polymers studied were poly-p-phenylene benzobis-oxazole (PBO) and predominantly ploy-p-phenylene benzobisthiazole PBT). The microstructural studies involved laser Raman and Fourier transform infrared spectroscopy, electron diffraction and electron microscopy, wide and small angle x-ray scattering and birefringence measurements. Mechanical measurements have employed ambient and high temperature mechanical testing as a function of strain rate and state of stress (uniaxial tension, double loop bending). The effect of processing conditions on fiber morphology and subsequently on mechanical properties has been studied for optimization of processing conditions for high strength and modulus rigid rod polymer fibers and films.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1980
- Accession Number
- ADA087927
Entities
People
- Edwin L. Thomas
- R. J. Farris
- S. L. Hsu
Organizations
- University of Massachusetts Amherst