▎ 摘　　要

NOVELTY - Preparation of multiple response nanocomposite hydrogel involves dissolving graphene oxide in organic solvent, ultrasonic stirring, separating graphene sheet, drying, adding reversible addition-fragmentation chain transfer agent, mixing for 10-20 minutes, adding dehydrating agent and catalyst, stirring for 15-24 hours, reacting, removing solvent by rotary evaporation, washing with dichloromethane, vacuum drying, ultrasonic dispersing in water, adding initiator, monomer and n-hexadecane, ultrasonic dispersing, adding emulsifier, stirring for 1-1.5 hours, and ultrasonic dispersing. USE - Method for preparing multiple response nanocomposite hydrogel (claimed). ADVANTAGE - The hydrogel has narrow molecular weight distribution index (PDI=1.10-1.38), and high grafting rate. The preparation method is simple and has wide raw material selection range. DETAILED DESCRIPTION - Preparation of multiple response nanocomposite hydrogel comprises dissolving graphene oxide in organic solvent, ultrasonic stirring, separating graphene sheet, drying, adding reversible addition-fragmentation chain transfer (RAFT) agent, mixing for 10-20 minutes, adding dehydrating agent and catalyst, stirring for 15-24 hours, reacting, removing solvent by rotary evaporation, washing with dichloromethane, vacuum drying, ultrasonic dispersing in water, adding initiator, monomer and n-hexadecane, ultrasonic dispersing, adding emulsifier, stirring for 1-1.5 hours, ultrasonic dispersing, introducing nitrogen for 10-15 minutes, reacting at 40-85 degrees C for 10-20 hours, and cooling.