TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The nucleophile is a hetero atom containing a compound of formula ((R2)-A-(R1)(R3)), preferably trimethylamine, triethylamine, triisopropylamine, tri-n-butylamine, trimethylphosphine, triethylphosphine, triisopropylphosphine, tri-n-butylphosphine and/or triphenylphosphine. The isoolefin is isobutene, 2-methyl-1-butene, 3-methyl-1-butene, 2-methyl-2-butene and/or 4-methyl-1-pentene. The multiolefin is isoprene, butadiene, 2-methylbutadiene, 2,4-dimethylbutadiene, piperyline, 3-methyl-1,3-pentadiene, 2,4-hexadiene, 2-neopentylbutadiene, 2-methyl-1,5-hexadiene, 2,5-dimethyl-2,4-hexadiene, 2-methyl-1,4-pentadiene, 2-methyl-1,6-heptadiene, cyclopenta-diene, methylcyclopentadiene, cyclohexadiene and/or 1-vinyl-cyclohexadiene. The cross-linking agent is norbornadiene, 2-isopropenylnorbornene, 2-vinyl-norbornene, 1,3,5-hexatriene, 2-phenyl-1,3-butadiene, divinylbenzene, diisopropenyl-benzene, divinyltoluene or divinylxylene or its 1-20C alkyl substituted derivatives. The high multiolefin butyl ionomer comprises multiolefin at 2-10 (preferably 4-7.5) mol.%. The peroxide is dialkylperoxides, ketalperoxides, aralkylperoxides, peroxide ethers or peroxide esters, where the peroxide ester is di-tert-butylperoxide, bis-(tert-butylperoxyisopropyl)-benzene, dicumylperoxide, 2,5-dimethyl-2,5-di(tert-butylperoxy)-hexane, 2,5-dimethyl-2,5-di(tert-butylperoxy)-hexene-(3), 1,1-bis-(tert-butylperoxy)-3,3,5-trimethyl-cyclohexane, benzoylperoxide, tert-butylcumylperoxide or tert-butylperbenzoate. The high multiolefin butyl polymer is halogenated with bromine or chloride.A = N or P; andR1-R3 = 1-18C alkyl, monocyclic aryl, fused 4-8C aryl or hetero atom of B, N, O, Si, P or S.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: (I) further comprises filler. The monomer mixture comprises: isoolefin monomer (80-95 (preferably 85-93) wt.%); multiolefin monomer and/or beta-pinene (4-20 (preferably 6-15) wt.%); and multiolefin cross-linking agent (0.01-1 wt.%). EXAMPLE - High brominated isoprene isobutylene rubber (48 g) and triphenylphosphine (4.7 g) were added to a mixer operating at 100degreesC and mixed for 60 minutes to give high isoprene isobutylene rubber (IIR). High isoprene IIR (40 g) was added to mixer operating at 30degreesC. After 1 minute of mixing, carbon black (20 g ) was added to the mixture. After 2 minute of mixing, HVA-2 (RTM: N,N'-meta-phenylene bismaleimide) (0.8 g) was added to the mixture. After 1 minute, DiCup 40C (RTM: Dicumyl peroxide) (1.6 g) was added to the internal mixer to give the peroxide curable rubber compound.