Styrene → Benzene, ethenyl-, polymer with 1,3-butadiene

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Reaction Steps

A random copolymer, containing 3 wt percent of polybutadiene and 97 percent styrene was prepared by techniques described in Szwarc, supra. The copolymer had a molecular weight of approximately 200,000 g/Mol. Approximately 10 g of the copolymer was dissolved in 200 ml of toluene. To this solution was added 0.15 g of 85 percent m-chloroperbenzoic acid. The mixture was stored for 48 hours. The mixture was then washed twice with 10 percent aqueous NaHCO3 and three times with distilled water. The polymer was precipitated into MeOH, and was dried under vacuum at 110 degrees C. for 12 hours. The polymer was stored under helium prior to use.

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