The multiple amphiphilic comb polymers were prepared by radical polymerization. Structural properties of copolymers were tested by1 H-NMR,FT-IR,gel-permeation chromatography(GPC) and other instruments. When the mass of the hydrophilic group is less than 60% of the total amount of monomer,the molecular weight of the polymer increases with increase of the content of the hydrophilic group,and the molecular weight distribution is uniform. Detect the variation law of the polymer solution viscosity by Ubbelohde v...