The chewing gum can be made from SBR, a rubbery copolymer of styrene and butadiene. Calculate the composition of a mixture of styrene and butadiene monomers to obtain aSBR composition of 25% styrene and 75% butadiene. We give: the constant of A = 0.58 and the constant of B = 1.35 (A: styrene and B:butadiene).

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SBR is the most generally used synthetic elastomer in the world Figure 12 depicts the structure of S... View the full answer