Abstract
Mechanical properties of polypropylene and SEBS-g-MA copolymer blends up to volume fraction 0.5 of SEBS-g-MA are evaluated. Tensile properties and impact strength are described and correlated with theoretical models. Crystallinity on which strength properties depend decreases with increasing concentrations of SEBS-g-MA copolymer. Tensile modulus and strength decreased but tensile elongation and impact strength enhanced. Morphological studies show good dispersion of SEBS-g-MA in polypropylene with a weak level of interaction between the phases.