prov:value
| - In a preferred embodiment, R1 is a saturated or unsaturated hydrocarbon group having from about 6-24 carbon atoms, R2 is methyl, ethyl, or propyl, or a mixture thereof, and M+ is a conjugate acid of the snitrogenous base, the nitrogenous base selected from the group consisting of allyl amine, diallyl amine, triallyl amine, methallyl amine, N-methyl N-allyl amine, or 2-(dimethylamino)ethyl acrylate
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