Modifying agent, polyamide copolymer synthesized using modifying agent and method for preparing polyamide copolymer

摘要

The invention provides a modifying agent, for synthesizing a polyamine copolymer, being a amide- group-containing diamine which is a reaction product of an aliphatic diamine and a first carboxylate, or a salt formed by reacting the amide- group-containing diamine with a second carboxylic acid, wherein the amide- group-containing diamine is represented by the general formula (I) where y represents an integer within 2˜6 (2 ≤y≤6) and x represents an integer within 4˜18 (4≤x≤18); the first carboxylate is an ester formed from an aliphatic carboxylic acid and the second carboxylic acid is a carboxylic acid.