DSC MEASUREMENTS ON BUTADIENE ETHENE ALPHA-OLEFIN TERPOLYMERS

Butadiene/ethene- and alpha-olefin-based terpolymers, produced with th e aid of a special Ziegler-Natta catalyst, are useful as model substan ces to study the crystallization behaviour of polymers because they ha ve definite side chains at defined distances on their skeletons. There is no information in the literature concerning the syntheses of such polymers. chemical methods of analysis are not sufficient to character ize these products. It is shown that conclusions on the formation of c o- and terpolymers can be drawn from the analysis of melting peaks in DSC thermograms. Thus the efficiency of the synthesis can be judged.