Mechanical Response of High Performance Polymers:
ABPBO, ABPBT, and ABPBI
Materials Theory and Modeling, 291, 321-324 (1993)
Light weight, high strength fibers and films produced from stiff chain polymers
are good candidates for use as structural materials. Over the last decade,
considerable success has been achieved in synthesizing high strength fibers
and films. Due to their thermal and oxidative stability aromatic
heterocyclic stiff chain polymers such as ABPBO, ABPBT and ABPBI are
aespecially good candidates. We first describe the finite theory of elasticity as
applied in atomistic simulations of anisotropic solids and then use this
description to investigate the mechanical response of these crystalline
polymers as a function of applied hydrostatic pressure and uniaxial tension and
compression along the chain direction in molecular mechanics simulations.
In addition to these finite stress experiments, I will also present the results
of the first elastic stiffness matrix calculations performed on these
high performance polymers.