Comb-type amide polymer and synthesis method thereof

The invention discloses a comb-type amide polymer and a synthesis method thereof. The comb-type amide polymer is prepared from the following components in parts by weight: 58 to 71 parts of a mixture of gamma-nonanolactone and gamma-decalactone, 14 to 27 parts of C8-C12 fatty acid, 13 to 19 parts of polyethyleneimine, 0.05 to 0.2 part of an antioxidant and 0.05 to 0.2 part of a catalyst through chemical reaction. Wherein the C8-C12 fatty acid is selected from at least any one of n-caprylic acid, n-nonanoic acid, n-decanoic acid and lauric acid; and the polyethyleneimine is selected from the group with the molecular weight of 300-2000. The special functional groups amide and methylene long-chain branch in the comb-type amide polymer structure have good dispersion stabilizing effects on the carbon black and the mixed color paste taking the carbon black as the main body. 本发明公开了一种梳型酰胺聚合物及其合成方法。所述梳型酰胺聚合物由以下a～e各重量份组分通过化学反应制得：γ-壬内酯和γ-癸内酯的混合物58～71份，C8-C12脂肪酸14～27份，聚乙烯亚胺13～19份，抗氧剂0.05～0.2份，催化剂0.05～0.2份。其中C8-C12脂肪酸选自正辛