Preparation method of graphene oxide modified triptycenyl polyamide separation membrane

The invention discloses a preparation method of a graphene oxide modified triptycenyl polyamide separation membrane. The method comprises the following steps: carrying out polymerization reaction in an organic solvent in the presence of an acid-binding agent by using a triptycenyl compound containing an active group, a diacyl chloride compound and a graphene oxide compound as monomers; pouring a polymer solution obtained by the reaction into deionized water for precipitation, filtering out precipitates, respectively washing the precipitates with methanol and deionized water, and performing drying to obtain a graphene oxide modified triptycenyl polymer; dissolving the graphene oxide modified triptycenyl polymer in an organic solvent to prepare a membrane casting solution, coating a supportbody with the membrane casting solution, and performing drying to obtain the graphene oxide modified triptycenyl polyamide separation membrane. The triptycenyl polyamide separation membrane solves theproblem of close packing