#$%^&*AU2016202407A120160512.pdf#####ABSTRACT The present invention relates to a rosin-based non-ionic surfactant and the preparation and application thereof. The rosin-based non-ionic surfactant is obtained by the steps of reacting rosin with a dienophile agent in a Diels-Alder addition reaction to obtain a modified rosin subjecting the modified rosin to an esterification reaction with a fatty alcohol or a polyhydroxy alcohol mono fatty acid ester to obtain a modified rosin derivate subjecting the modified rosin derivate to an esterification reaction with a polyethylene glycol or polyoxyethylene-polyoxypropylene block co-polymer to obtain a viscous liquid or waxy solid which has a total active substance of >-95% and a critical micelle concentration of from 1.3 X 10-4g/mL to 6.8 X 10-3g/mL. The surfactant has a good compatibility with solvents like vegetable oils and molecules of pesticide active ingredients and is suitable for preparing a pesticide emulsifiable solution. 1
