In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过环氯丙烷与咪唑进子反应，成了以为主链、侧链带有咪唑基团的螯树脂（简称PSIM）。