4 hydroxybutylacrylate 0 2 mole of methylmethacrylate 300 g of thf and 0 1 3 g of aibn the resulting solution was stirred at 60 75 u00b0 c for 5 20 hours under nitrogen atmosphere the reaction mixture was precipitated in ethyl ether or n hexane the precipitate was filtered and dried to provide poly 9 anthracenemethylacrylate 4 hydroxybutylacrylate methylmethacrylate copolymer of formula 17 yield 80 to a 500 ml round bottom flask was added 0 3 mole of 9 anthracenemethylmethacrylate 0 5 mole of 2 hydroxyethylacrylate 0 2 mole of methylmethacrylate 300 g of thf and 0 1 3 g of aibn the resulting solution was stirred at 60 75 u00b0 c for 5 20 hours under nitrogen atmosphere the reaction mixture was precipitated in ethyl ether or n hexane the precipitate was filtered and dried to provide poly 9 anthracenemethylmethacrylate 2 hydroxyethylacrylate methylmethacrylate copolymer of formula 18 yield 82 to a 500 ml round bottom flask was added 0 3 mole of 9 anthracenemethylmethacrylate 0 5 mole of 3 hydroxypropylacrylate 0 2 mole of methylmethacrylate 300 g of thf and 0 1 3 g of aibn the resulting solution was stirred at 60 75 u00b0 c for 5 20 hours under nitrogen atmosphere the reaction mixture was precipitated in ethyl ether or n hexane the precipitate was filtered and dried to provide poly 9 anthracenemethylmethacrylate 3 hydroxypropylacrylate methylmethacrylate copolymer of formula 19 yield.