Abstract

Abstract The binary and ternary blends consisting of an isotropic polymer and a thermotropic liquid crystalline polymer (LCP) were investigated in terms of rheology, morphology, and physical properties. In the binary blends, Vectra A950 lowered the melt viscosity of polyarylate (PAR), and Vectra B950 promoted the crystallization of polyphenylenesulfide (PPS). Introducing a third component into these binary blends, a multiblock copolyesterether into the PAR/Vectra A950 blends and a polysulfone into the PPS/Vectra B950 blends, helped elongate the dispersed LCP domains and enhanced the interface adhesion. The ternary LCP blends produced in-situ composites with improved mechanical properties.

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