PolymershardNUMERICAL

In the standard commercial synthesis of the synthetic rubber Buna-S (SBR), what is the mass/mole perPolymers Chemistry Question

Question

In the standard commercial synthesis of the synthetic rubber Buna-S (SBR), what is the mass/mole percentage of the styrene monomer present in the initial reactant mixture?

Answer: 25

💡 Solution & Explanation

Buna-S (Styrene-Butadiene Rubber) is a copolymer traditionally synthesized from a mixture containing roughly $75\%$ 1,3-butadiene and $25\%$ styrene.

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