COMPATIBILIZATION OF BLENDS OF POLYPROPYLENE AND STYRENE-BUTADIENE-STYRENE BLOCK COPOLYMER WITH DEM

摘要

Mechanical properties of Polypropylene /Styrene-Butadiene-Styrene Block copolymer blends,functionalized and non-functionalized were evaluated.Functionalization was carried out employing Benzoile Peroxide as initiator and Diethyl maleate (DEM) as functional monomer.An optimum Peroxide/DEM ratio was obtained in order to promote functionalization.Concerning mechanical properties of blends,the addition of SBS to the PP matrix increased elongation at break and reduced Young's Modulus,while a rise on this property was achieved when the SBS was functionalized.