Ionenes are special types of polymer that have ions within the backbone rather than pendants. This arrangement allows building materials by using the principles and functional groups associated with classical condensation reactions. A series of ionenes containing benzyl and amide-containing imidazolium ionenes were prepared by Menchustkin reaction by reaction of benzyl or amide-containing imidazole with dihalides of ethylene glycol or alkyl derivatives. The polymers were dissolved in 3 ILs at 3 different concentrations. The solution properties of these solvated polymers in ILs were studied by dynamic light scattering as a function of the size and concentration of the polymer. The effect and behaviors of ionenes on the type of spacers between cations in the backbone i.e., ether vs alkyl; benzyl vs amide, and the functionality of the ILs were discussed. The study showed the folding effect of ether-containing ionene in ILs.

How ionenes fold in ionic liquid: Effect of ether versus alkyl linkages

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