Effect of compatibilization on the properties of HIPS/PA1010 blends

Abstract

Blends consisting of high-impact polystyrene (HIPS) as the matrix and polyamide 1010 (PA1010) as the dispersed phase were prepared by mixing. The grafting copolymers of HIPS and maleic anhydride (MA), the compatibilizer precursors of the blends, were synthesized. The contents of the MA in the grafting copolymers are 4.7 wt % and 1.6 wt %, and were assigned as HAM and LMA, respectively. Different blend morphologies were observed by scanning electron microscopy (SEM); the domain size of the PA1010 dispersed phase in the HIPS matrix of compatibilized blends decreased comparing with that of uncompatibilized blends. For the blend with 25 wt % HIPSg-MA component, the T c of PA1010 shifts towards lower temperature, from 178 to 83°C. It is found that HIPS-g-MA used as the third component has profound effect on the mechanical properties of the resulting blends. This behavior has been attributed to the chemical reaction taking place in situ during the mixing between the two components of PA1010 and HIPS-g-MA.

Chemorheological study of compatibilized blends of low‐density polyethylene and polydimethyl siloxane rubber

“…Previous investigators have already carried out a voluminous work in the field of compatibilization 4–15. However, not much attention has been paid to the study of processability of PDMS rubber and its blends.…”

Thermally crosslinkable poly(phenylene sulfide)/poly(ether sulfone)/polymerization of monomer reactant–polyimide blends

“…These compatibilizers are thought to be localized mainly at the interface between the two immiscible polymers and thereby induce local miscibility 1. Recently, increasing effort has been directed toward the creation of block or graft copolymers in situ by the addition of a suitable functionalized polymer that can react with blend components, with their inherent chemical reactivity based on end‐capping or grafting reactions, such as a maleic anhydride‐functionalized polymer blending with polyamides 7, 8…”