Infrared measurement of configuration and stereoregularity in polymers—II. Application to syndiotactic polypropylene

Abstract

Comparison of the spectra of syndiotactic, isotactic and atactic polypropylene illustrates the sensitivity of the infrared spectrum to changes in polymer systems resulting from stereoregularity. The bands are classified according to general types dependent on stereoisomer, degree of coupling due to stereosequence length, and the helical conformation.