| 摘要 |
<p>The present invention relates to a copolymer comprising a hydrophilic polymer on a side chain, and a composition containing the same for reducing frictional resistance. More specifically, disclosed is a copolymer, which is represented by chemical formula 1 or 4, comprising at least one acrylate-based monomer and at least one methacrylate-based monomer on a main chain and a hydrophilic polymer on a side chain. In chemical formula 1, the weight ratio of a, b, and c is 5-40 : 5-40 : 0.1-30; and Z is any one hydrophilic polymer selected from polyethylene oxide, polyacryl amine, or polysaccharide. In chemical formula 4, the weight ratio of w, x, y, and z is 5-40 : 5-40 : 5-40 : 0.1-30; and Z is any one hydrophilic polymer selected from polyethylene oxide, polyacryl amine, or polysaccharide.</p> |
