Polyethylene glycol grafted polystyrene support that has been highly functionalized

摘要

(57) [summary] The present invention provides novel polymers, graft copolymers of poly (ethylene oxide), and purification methods manufacturing method thereof. The graft polymers have up to three backbone methylstyrene units per poly (ethylene oxide) chains. (Ethylene oxide) chains are attached to the main chain polymer via the 1,3 Jiokishipuropu-2-yl linking group this poly. The polymers of the present invention are prepared by reacting with 1,3-dicarbonyl nucleophilic backbone polymer material having a leaving group, followed by reforming. Purification method comprises treating in a polar aprotic solvent for the polymer.