The synthesis of polysulfides from thioepoxides traditionally makes use of toxic organometallic initiators. We demonstrate the use of histamine as an efficient initiator. The polymerization can be carried out under solvent-free and metal-free conditions at mild temperature to obtain high-quality polysulfides. A synergistic acid and base catalysis mechanism is proposed. The results enable a safer and cleaner production of next-generation polymers.

中文翻译：

---

组胺，一种有效的多硫化物合成引发剂

传统上由硫代环氧化合物合成多硫化物利用有毒的有机金属引发剂。我们证明了使用组胺作为有效的引发剂。聚合反应可以在无溶剂和无金属的条件下，在温和的温度下进行，以获得高质量的多硫化物。提出了协同酸和碱的催化机理。结果使下一代聚合物的生产更加安全和清洁。