Abstract
AbstractPolystyrene of high molecular weight was obtained in a good yield by the polymerization of styrene catalyzed by rhenium pentachloride in benzene or benzene—ethylene dichloride solution. The mechanism of this polymerization reaction was studied by kinetic and spectroscopic measurements. Experimental results were well explained by assuming that a π‐complex between rhenium pentachloride and monomer initiates the cationic polymerization in the case of benzene solution and that +CH2CH2Cl initiates the cationic polymerization in the presence of ethylene dichloride.
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