Synthesis of polyepichlorohydrin via cationic ring opening polymerization

Polyepichlorohydrin, first synthesized in ۱۹۵۰, is primarily produced through two methods: cationicring-opening polymerization and the Vanderberg method. In the cationic ring-openingpolymerization method, a Lewis acid such as BF۳, SnCl۴, SbCl۵, or FeCl۳ is used as a catalyst, withethylene glycol serving as a initiator. The Vanderberg method employs an organo-metallic catalyst,such as trialkylaluminum. Other methods, like using a double metal cyanide catalyst or anionic ringopeningpolymerization, exist but are less common due to associated challenges and issues. In thiswork polyepichlorohydrin is prepared by the cationic ring-opening polymerization method and SnF۲is used as catalyst.

کلیدواژه ها:

Synthesis ، Cationic ring-opening polymerization ، Polyepicholorohydrin