MULTI-BRANCHED POLYMER HAVING A BLOCK STRUCTURE/GRAFT STRUCTURE/STAR-SHAPED STRUCTURE WHOSE POLYMER STRUCTURE IS THREE-DIMENSIONALLY REGULATED, PROCESS FOR PRODUCING THE SAME, AND APPLICATIONS THEREOF

摘要

PURPOSE: Provided are a novel multi-branched polymer having a block structure/graft structure/star-shaped structure whose polymer structure is three-dimensionally regulated by combining a macroinitiator, a macromonomer and a reactive polymer, which are obtained by introducing functional groups into polyolefin, with polar monomers or their various polymers i.e., polar polymers so that they are polymerized or reacted with one another. CONSTITUTION: The multi-branched polymer as a polymer containing a block structure, a graft structure or a star-shaped structure is represented by the following general formula (I), (P¬1)n-X, wherein n is an integer of 2 or more; P¬1 is a polymer chain having a number-average molecular weight (Mn) of 500 to 1,000,000 selected from a polyolefin chain (A1), a polyolefin chain having polar polymer side chains (A2), a polar polymer chain (A3) and a polar polymer chain having polyolefin side chains (A4); a plurality of P¬1s may be the same or different from one another provided that every P¬1 is not the polar polymer chain (A3); when n is 2, at least one P¬1 is the polar polymer chain having polyolefin side chains (A4); and X is a heteroatom or a heteroatom-containing linking group containing less than 200 atoms in total.