Disclosed herein is an amphiphilic block copolymer having an ionic functional group, wherein the ratio (N10/N5) of a rotational viscosity (N10) of a 10% by mass solution of the copolymer in purified water to a rotational viscosity (N5) of a 5% by mass solution of the copolymer in purified water is 2.5 or lower.
本文公开了一种具有离子官能团的两性嵌段共聚物,其中共聚物在纯净
水中 10%质量分数溶液的旋转粘度(N10)与共聚物在纯净
水中 5%质量分数溶液的旋转粘度(N5)之比(N10/N5)为 2.5 或更低。