Quantitative interpretation of infra-red dichroism in partly oriented polymers

Abstract
It is shown that, subject to certain mild restrictions, the dichroism of a partly oriented polymer sample is the same as that of a fully alined plus an entirely random portion. If the directions of three linearly independent dipole moment vectors associated with different bands can be determined relative to the repeating unit of the polymer, then using the dichroism of the bands, the degree of orientation can be eliminated as a parameter and the inclination of the repeating unit relative to the polymer axis can be determined. Graphs are provided to aid in testing structures.

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