Interrelations between constitution, configuration and conformation in chlorinated polyalkenamers

Abstract

SUMMARY FTIR-Spectra of poly-l.2-dichlor oalkanes are reported as a function of the constitution and of the configuration of the subunits and of the temperature. The intensity of the C-CI-vibrations of the head-to-head chlorinated polymers with variable tail length seems to be sensitive to changes in configuration and conformation and also to changes in the surrounding of the absorbing group. We conclude from these experiments that an intensity ratio of the different conformers corresponds to every degree of stereoregularity, which is overlapped with the influence of polarity on the absorbance. Assuming that the conformational equilibrium in chlorinated polymers is insensitive against minor disturbances - swelling or blending - the IR-intensity offers information concerning placement and degree of polymer contacts and interactions in polymer blends as well as in plasticized polymers.