Preparation of Butyl Rubber by Lewis Acid Catalysts and Investigation of the Effective Parameters

Almost all world production of butyl rubber (the co-polymer of isobutylene-isoprene) utilizes methyl chloride as a diluent and aluminium chloride as the initiator [1]. The effects of theoperating parameters such as rotating speed (rpm) and polymerization temperature on number average molecular weight (Mn) and molecular weight distribution (MWD, Mw/Mn) of the product were investigated [2]. The molecular weight of the copolymers increased with increasing (rpm) andwith decreasing polymerization temperature [3]. In this work, a new method has been developed by replacing toxic solvent, which has been used in industrial method of butyl rubber production