Abstract: Acrylic impact modifiers(ACR) for poly (vinyl chloride) (PVC) were prepared by free-radical-initiated polymerization. ACRelastomers prepared from various components of butyl acrylate (BA), methyl methacrylate (MMA) and crosslinker, have been studied by dynamic mechanical viscoelastometer and infrared spectroscopy. It is shown that there are two glass transition temperature for each ACRelastomer. The experimental result of PVC/ACR blends shows that ACR-Ⅰ-3 and ACR- Ⅱ-3 are excellent impact modifiers for PVC.

Key words: Acrylic elastomer, Modifiers, Polyblend