2 2 naphthoxy ethyl vinyl ether maleic anhydride copolymer the anhydride copolymer was dissolved in the minimum amount of tetrahydrofuran the solution was diluted with toluene and then isopropanol the solution was refluxed until 50 75 of the monoester was formed as determined by infra red ir or by carbon 13 nuclear magnetic resonance 13 c nmr the copolymer was recovered by precipitation the average molecular weight of the copolymer was determined by gel permeation chromatography gpc the acrylate monomers were prepared by the reaction of the corresponding alcohols with acryloyl chloride as described below the reaction set up consisted of a three necked round bottom flask equipped with a thermometer condenser and a mechanical stirrer and a dropping funnel 2 naphthol 100 g 0 6936 moles was dissolved in 60 ml of dimethyl sulfoxide sodium hydroxide 27 7 g 0 6936 moles was carefully added to the solution then 2 chloroethanol 61 4 g 0 7629 moles was slowly added keeping the reaction temperature at 80 u00b0 c the reaction was followed by gc after gt gt 80 conversion was achieved the reaction was worked up by adding toluene and extracting the unreacted naphthol with 5 aqueous naoh the product was then recrystallized in ethanol or distilled under vacuum 70 80 yield in a round flask provided with an overhead stirrer condenser and addition funnel 2 2 naphthoxy ethanol 40 0 g 0 2127 moles was added and the system was swept with nitrogen for.