Patent ID: 7868097
Filing Date: 2011-01-11
Classification: C08F

Abstract:
1. A method for producing a hybrid polymer having a structure in which a polyolefin segment (A) and a polar polymer segment (B) are connected together with a carbon-carbon bond, comprising polymerizing a radically polymerizable monomer by atom transfer radical polymerization in a non-molten state using a halogenated polyolefin (A′) as a macro-initiator, the halogenated polyolefin being a powder having an average particle diameter of 1 to 1000 μm and a bulk density of 0.10 to 0.50 g/cm the polyolefin segment (A) being derived from the halogenated polyolefin (A′) obtained by halogenating a polyolefin (A″) which has a molecular weight distribution (Mw/Mn) of 1.5 or more and which is selected from the group consisting of the following (A1) to (A5), the halogenating requiring the use of bromine, N-bromosuccinimide, N-bromocaprolactam, N-bromophthalimide, 1,3-dibromo-5,5-dimethylhydantoin, N-bromoglutarimide, or N, N′-dibromoisocyanuric acid as a halogenating agent, the halogenated polyolefin (A′) having a halogen content of 0.01 to 11 wt %, the halogenated polyolefin (A′) having a carbon-halogen bond present at an α-position of a carbon-carbon double bond, or a structure in which a plurality of halogens are bonded to one carbon atom, the polar polymer segment (B) being a homopolymer or a copolymer of one or more kinds of monomers selected from radically polymerizable monomers, the hybrid polymer being a powder comprising 1 to 99 parts by weight of the polyolefin segment (A) and 1 to 99 parts by weight of the polar polymer segment (B), and having a transition metal content of 100 ppm or less, an average particle diameter of 1 to 1000 μm and a bulk density of 0.10 to 0.90 g/cm (A1) a homopolymer or a copolymer of α-olefin compounds represented by CH (A2) a copolymer of an α-olefin compound represented by CH (A3) a copolymer of an α-olefin compound represented by CH (A4) a random copolymer of an α-olefin compound represented by CH (A5) a polyolefin obtained by modifying the polymer represented by any of (A1) to (A4) with an unsaturated carboxylic acid or a derivative thereof, (In the formula (1), n is 0 or 1, m is 0 or a positive integer, q is 0 or 1, R