Effect of Additive Constraint on the Morphological and Mechanical Properties of Triblock Copolymer Blends

Abstract

While numerous studies have addressed the morphological characteristics of diblock copolymer blends either with a second copolymer or a parent homopolymer, relatively few have examined comparable blends containing a triblock copolymer. In this study, we investigate the role of midblock bridging on the morphological and physical characteristics of blends composed of a poly(styrene-b-isoprene-b-styrene) (SIS) triblock copolymer with either an unconstrained homopolyisoprene (hi) or an end-grafted SI diblock copol…