Grafting Polymerization of Vinyl Monomers onto Polypropylene in the Presence of Acetylacetonates of Varying Valence Metals
Polymer Science Series B
, E-ISSN: 1531-8583
St. Petersburg Department of G.K. Boreskov Institute of Catalysis SB RAS
It was shown that acetylacetonates of variable valence metals absorbed together with vinyl monomers in a PP matrix efficiently initiate the polymerization of these monomers. The process proceeds at a high rate even at room temperature if the aging degree of the PP matrix is characterized by insignificant degree of aging. The polymerization of styrene in the matrix yields up to similar to 50% grafted macromolecules. It is suggested that a partially oxidized PP matrix exerts a promoting effect on the process of polymerization initiation due to the incorporation of oxygen-containing functional groups into the PP matrix.