Polyolefin-like bio-based linear polyesteramide and preparation method thereof

The preparation method comprises the following steps: dissolving bio-based diester and amino alcohol in a solvent, adding a catalyst to react under the protection of inert gas to obtain an amide diol monomer, putting the amide diol monomer and bio-based diacid in a reaction device, and reacting at the temperature of 60-80 DEG C to obtain the polyolefin-like bio-based linear polyesteramide. The preparation method comprises the following steps: carrying out an esterification reaction in an inert gas atmosphere to obtain a prepolymer, adding diol and a catalyst, carrying out an esterification reaction in the inert gas atmosphere, carrying out pressure reduction and water removal, and then carrying out a heating reaction to obtain the polyolefin-like bio-based linear polyesteramide. The thermodynamic property of the polyesteramide can be regulated and controlled by regulating and controlling different amide diol and the molar ratio of alcohol to acid in the polymer. The prepared polyesteramide has excellent perfo