2 3 4 5 6 pentafluorostyrene

Styrene (St) and divinylbenzene (DVB) were purchased from Sinopharm Group Chemical Reagent Co., Ltd. (Shanghai China) and purified by passing them through a short neutral aluminum oxide column before use. Potassium persulfate (K₂S₂O₈, KPS), sodium borohydride (NaBH₄), sodium hydroxide (NaOH) and hydrogen peroxide (30% aqueous solution, H₂O₂) were purchased from Sinopharm Chemical Reagent Co., Ltd. Shanghai China and used as received. 2,3,4,5,6-Pentafluorostyrene was purchased from J&K and used as received. Bromopentafluorobenzene was purchased from TCI and used as received.

N,N-Dimethylacrylamide (DMA, 99%) and 2,3,4,5,6-pentafluoroStyrene (PFS, 97%) were purchased from J&K Scientific. 2,2′-Azobis(2-methylpropionitrile) (AIBN, 99%) was purchased from Sigma-Aldrich. Styrene (St, AR), potassium phosphate tribasic trihydrate (K₃PO₄^.3H₂O, AR), dichloromethane (DCM, AR), ethanol (AR), N,N-dimethylformamide (DMF, AR), toluene (AR), tetrahydrofuran (THF, AR), 1,4-dioxane (AR), and acetone (AR) were obtained from Sinopharm Chemical Reagent. Ethanethiol (98%), carbon disulfide (99%), and methyl 2-bromopropionate (98%) were purchased from Energy Chemical. AIBN was recrystallized from ethanol prior to use. All monomers were purified by passing through an alkaline aluminum oxide column to remove the inhibitor. Other reagents were used without further purification.