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.

通过聚环氯丙烷与咪唑分子反应，成了以聚主链、侧链带有咪唑基团的螯树脂（简称PSIM）。