COPOLYMER CONTAINING ACID BUILDING BLOCKS AND VARIOUS TYPES OF POLYETHER BUILDING BLOCKS

摘要

The invention relates to a copolymer comprising i) 3 to 40 mol % of an isoprenol polyether derivative structural unit a, ii) 3 to 40 mol % of a vinyloxy polyether derivative structural unit ß and iii) 35 to 93 mol % of an acid structural unit ?, wherein the structural unit of the copolymer which belongs to the vinyloxy polyether derivative structural unit ß has longer side chains than the structural units which belong to the isoprenol polyether derivative structural unit a.