▎ 摘　　要

NOVELTY - Preparation of multilayered graphene oxide polyolefin separation membrane involves mixing polyolefin separation membrane with bromine, carrying out ultraviolet irradiation process, reacting resultant product with sodium azide, carrying out substitution reaction to obtain azido group-containing polyolefin separation membrane, preparing azido group-containing graphene oxide, carrying out click chemistry of azido group-containing graphene oxide and azido group-containing polyolefin separation membrane to obtain click-bonded self-assembly, drying and repeating the reactions. USE - Preparation of multilayered graphene oxide polyolefin separation membrane (claimed) used in chemical industry. ADVANTAGE - The method provides multilayered graphene oxide polyolefin separation membrane having excellent hydrophilicity and contamination resistance. DETAILED DESCRIPTION - Preparation of multilayered graphene oxide polyolefin separation membrane involves mixing unmodified polyolefin separation membrane with bromine, carrying out ultraviolet irradiation process to obtain brominated polyolefin membrane, reacting the resultant product with sodium azide, then carrying out nucleophilic substitution reaction to obtain azido group-containing polyolefin separation membrane, reacting the resultant product with sulfonyl chloride and graphene oxide, carrying out acylation reaction, then carrying out condensation reaction in presence of propargylamine to obtain alkynyl group-containing graphene oxide, reacting the resultant product with sodium azide, ammonium chloride and epoxy group, carrying out ring-opening reaction to obtain azido group-containing graphene oxide, carrying out click chemistry method of azido group-containing graphene oxide and azido group-containing polyolefin separation membrane to obtain click-bonded self-assembly, cleaning the resultant product, drying in vacuum, and repeating the reaction to bonded layers of self-assembly.