Solution properties and molecular structures of EPM and EPDM

Abstract
The solution properties of EPDM were investigated based on EPM as a model compound of linear molecules. The glass transition temperature and the propylene content in EPDM were measured as a function of the molecular weight. Good agreement between the solution behaviors of EPM and EPDM was observed. This was correlated to change not only in the propylene composition but also in the monomer sequence distribution.