MODIFIED BLOCK COPOLYMER

摘要

The invention relates to a modified block copolymer obtainable by reaction of at least a part of the cyclic anhydride groups of (i) a polycyclic methacrylic anhydride block copolymer comprising at least one block A comprising a plurality of cyclic polymerized units of methacrylic anhydride and at least one block B comprising polymerized units of vinyl monomers, wherein block B is essentially free of cyclic polymerized units of methacrylic anhydride, with (ii) a cyclic anhydride-reactive compound having at least one cyclic anhydride-reactive group.