Amphiphilic polymer with T-shaped or pi-shaped structure and synthesizing method of amphiphilic polymer

The invention discloses an amphiphilic polymer with the T-shaped or pi-shaped structure and a synthesizing method of the amphiphilic polymer. A molecular main chain of the amphiphilic polymer is a vinyl polymer with one or more than one polar group, and a side chain of the amphiphilic polymer is a graft polymer which is composed of one or two oleophilic polymers and has the T-shaped or pi-shaped structure. The amphiphilic polymer which is invented according to the free radical copolymerization principle and has the T-shaped or pi-shaped structure is simple in synthesizing process, wide in raw material source and low in cost. By synthesizing the polymer through the method, the number-average molecular weight can be freely controlled to be within the range from 3,000 to 10,000, and the amphiphilic polymer has the wide application prospect in the field of coating and ink.