Polyesters containing the norbornane structure

Abstract

Several norbornane and norbornane condensed diesters and dimethanols have been synthesized. Varying the points of substitution in the norbornane moiety has been found to have little effect on the glass transition temperatures of polyesters prepared from these compounds. Increasing the number of norbornane residues as polymer side chains results in a linear increase in the T_g. The increase is an apparent function of the size of the norbornane moiety relative to the polymer repeating unit.