https://123dok.net/document/6zkoodmy-copolymerisation-of-dimethyl-aminoethyl-methacrylate-with-poly-ethylene-glycol-a-hdyroxy-w-methacrylateadopting-atom-transfer-radical-polymerization-atrp-a-comparison-of-the-reaction-performed-either-in-bulk-or-solution.html