New Graft Copolymer Having Polypropylene as Side Chain Synthesized by Using Functional Polypropylene Prepared by Tris (2-methyl-1, 3-butandionato) vanadium/Diethyl Aluminum Chloride Catalyst System

It is known that functional polypropylenes having styrene and methacrylate group at the chain end are prepared by living polymerization with soluble tris (2-methyl-1, 3-butandionato) vanadium/diethyl aluminum chloride catalyst system. Copolymerization of functional polypropylene with another monomer can produce a new graft copolymer having polypropylene as a side chain. We obtained a graft copolymer with polystyrene and polypropylene by copolymerization of styrene with functional polypropylene by using Ti complex/MAO catalyst system. Another graft copolymer having polyacrylic acid and polypropylene was synthesized by radical copolymerization with acrylic acid and functional polypropylene.