TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The alkene in formula (1) is a 1,2-alkene, 1,1-diphenylethene, 1,2-diphenylethene, alpha-methylstyrene, alpha,beta,beta-trifluorostyrene or 2,3,4,5,6-pentafluorostyrene. The unsaturated or anionically polymerizable compound in formula (2) is a styrene, divinyl benzene, chlorostyrene, styrene sulfone, (meth)acrylic acid ester, crotonic acid ester, acrylonitrile, vinyl halide, vinylidene halide, fluoroalkene or perfluoroalkene, vinylpyridine, vinylimidazole having a protected N-H bond, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane or other cyclic siloxane. The electrophile is SO2, SO3, SOCl2, SO2Cl2, PCl3, PCl5, POCl3, CO2, alkyl ketone, aryl ketone, alkyl aldehyde or 1,3-propansulfone. The polymer comprises an aryl main chain, preferably a polyethersulfone, polyphenylene, polypyhenylene ether or polyphenylene sulfide. The polymer is functionalized by NO2, halogen, NO, SO2M or SO2 Hal groups. Preferred Process: The solvent for the organometallic reaction is diethyl ether, tetrahydrofuran, glyme, diglyme or triglyme. Preferred Definitions: R1-R8 = H, F, Cl, Br, I, 1-20C optionally halogenated alkyl, phenyl, naphthyl, anthracenyl, aryl, hetaryl, NO2, ONO, nitroalkyl or nitroaryl. M = Li, Na, K, Rb, Cs, MgHal, ZnHal, or CuLi with Hal = F, Cl, Br or I.    EXAMPLE - A solution of PSU P1800(RTM; polysulfone) (11.05 g , 0.025 moles) in THF ((500 ml) was cooled to -65 degreesC under argon followed by titration with 2.5 M n-BuLI and the spray addition of 10 M n-BuLi (5 ml). After 2 hours stilbene (0.05 moles) was sprayed in and the reaction mixture turned dark green. The mixture was allowed to heat up to 0 degreesC and after 2 hours styrene (0.05 moles) was sprayed in and allowed to react for 2 hours. The mixture was a dark red color. Isoprene (0.1 moles) was sprayed into the mixture which was allowed to react overnight with an increase to room temperature. The mixture was then cooled to -20 degreesC followed by the dropwise addition of a solution 4,4'-bis(diethylamino)benzophenone (0.15 moles) in THF (100 ml). The mixture was stirred for 24 hours at -20degreesC and allowed to warm to room temperature within 12 hours. A 1:1 mixture of water and isopropanol (20 ml) was sprayed in and the polymer precipitated in isopropanol (3 l), digested in isopropanol and filtered to remove excess ketone. The polymer was then washed with methanol and dried at 60 degreesC.