2-hydroxyethyl methacrylate/styrene/DMF copolymerizationmonomer reactivity ratiossolvent effectlow and high conversion2-Hydroxyethyl methacrylate (HEMA) and styrene (S) have been copolymerized in a 3 mol · L1 N , N ′-dimethylformamide (DMF) solution using 2,2′azobis (isobutyronitrile) (AIBN) as...