Morphology-structure of oriented noncrystalline polyesters has been st
udied using the parameters changes of the broad peaks in wide angle X-
ray scattering (WAXS) with azimuth angles. Two-dimensional WAXS show t
hat the oriented noncrystalline polyester is made up of long plane-lik
e chains arranged in opposition to each other; and these chains are co
mposed of oriented atomic distances with the chain axes parallel to th
e drawing direction and are closely arranged into lateral ordering. It
is concluded that the arrangements of both interchain and intrachain
distances are in good order in the oriented direction, while in other
directions, they are arranged nearly at random. This shows that the or
iented noncrystalline polymers are materials with their ordered struct
ure varying with directions.