NOVELTY - An ionomer (I) comprising ionic strained olefin monomer units and optionally random or sequentially placed strained olefin monomer units, is new.    USE - As an alkaline anion exchange membrane of a fuel cell, and in devices selected from hydrogen generation device, and water purification device (all claimed).    ADVANTAGE - The ionomers provide the alkaline anion exchange membrane (AAEM) having low solubility in methanol and water; high hydroxide conductivity; low swelling under alkaline fuel cell conditions; and improved mechanical properties. The compounds have continuous ionic domains, which when hydrated, allow unobstructed ion conduction. The monomers of the ionomer materials have tetraalkylammonium moiety already present, the membrane synthesis is greatly simplified because post-polymerization modifications are unnecessary.    DETAILED DESCRIPTION - An ionomer comprising ionic strained olefin monomer units and optionally random or sequentially placed strained olefin monomer units, and having the formula -(M1)x-(M2)1-x- (I), is new.    M1 and (M2)=monomer units have a non-aromatic hydrocarbon backbone and comprising at least one tetraalkylammonium group connected to the backbone by an aliphatic polyatomic linkage;    M2=non-aromatic hydrocarbon unit;    x=0.05-1.    Provided that:    (1) the monomer units M1 and (M2) have a non-aromatic hydrocarbon backbone and comprise at least one tetraalkylammonium group connected to the backbone by an aliphatic polyatomic linkage;    (2) the monomer units (M1) and (M2) are connected by carbon-carbon single bonds and/or carbon-carbon double bonds; and    (3) any carbon atoms in the beta position relative to the ammonium nitrogen do not bear H substituents.    INDEPENDENT CLAIMS are included for the following:    (1) preparation of ionomer (I);    (2) a compound comprising at least one alkyl tetraalkylammonium group and having the formula R1R3R6N(+)-(R7-N(+)R4R5)n-R2 2(A-) (II); and    (3) a device selected from hydrogen generation device, fuel cell, and water purification device comprising the ionomer (I).    R1=4-20C cycloalkenyl;    R2-R6=1-20C hydrocarbyl;    R7=1-20C divalent hydrocarbyl;    A-=halide, hydroxide, hexafluorophosphate, borate, carbonate, bicarbonate, or carboxylate;    n=0-20.    Provided that:    (1) the carbon in the beta position relative to the ammonium nitrogen does not have a hydrogen substituent; and    (2) when the 1-20C hydrocarbyl group has a carbon in the beta position relative to the ammonium nitrogen atom, then the beta carbon of the group does not have H substituent.