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Halloysite underwent a vinyl functionalization reaction and was then polymerized with vinyl imidazole, in conjunction with 2-acrylamido-2-methylpropanesulfonic acid. The tangling imidazole rings were converted into acidic ionic liquids by means of a reaction with chlorosulfuric acid. Analysis using UV-Vis spectroscopy and the Hammett equation demonstrated that the conjugation of the acid polyionic liquid enhanced the acidity of halloysite. The study of catalyst performance and optimization of reaction