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A branched polymeric ionic liquid (PIL) with imidazolium cation segments in the main chain connecting branching points was prepared in 95% yield by heating an equimolar mixture of 1,3,5-tris-(4-chlorobutoxy)-benzene and 1,3,5-tris-(4-imidazol-1-yl-butoxy)-benzene at 80 °C for 16 h. Similarly, condensation of a mixture of 1,3,5-tris-(4-imidazol-1-yl-butoxy)-benzene and 1,4-dichlorobutane in 1:1.5 molar...
Polymeric ionic liquid poly(imidazolium chloride-1,3-diylbutane-1,4-diyl) with imidazolium cation groups built into the main chain was prepared using two different routes in 92–95% yield, and characterized by FT-IR, 1H, 13C NMR, TGA, and elemental analysis. The first method involved the heating of neat 1-(4-chlorobutyl)-1H-imidazole, whereas the second method involved the heating of an equimolar mixture...
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