Consider the radical polymerization of three monomer species: A, B, and C. Assuming that the reactivity...

  

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Consider the radical polymerization of three monomer species: A, B, and C. Assuming that the reactivity of a growing radical chain is determined by the last monomer unit added, the propagation reactions for radical chains (A.) with terminal monomer unit of type A are given by A+ A → A. A+B r = КРАДА.А r = KDABA-B КРАВА-В B. A + C → C. r = K₂ACA.C Similarly, we have three additional propagation reactions for each of the other two types of growing radical chains-that is, those terminating with monomer units of type B (i.e., B-) and C (ie., C.). Find the probability that a growing radical chain at steady state is of type A., B., or C.. Note that the probabilities are defined as concentration ratios; for example, for radical of type A. we have P₁ = A·/(A + B + C.). In order to evaluate them, start by balancing separately radicals of type A-, B-, and C.. Consider the radical polymerization of three monomer species: A, B, and C. Assuming that the reactivity of a growing radical chain is determined by the last monomer unit added, the propagation reactions for radical chains (A.) with terminal monomer unit of type A are given by A+ A → A. A+B r = КРАДА.А r = KDABA-B КРАВА-В B. A + C → C. r = K₂ACA.C Similarly, we have three additional propagation reactions for each of the other two types of growing radical chains-that is, those terminating with monomer units of type B (i.e., B-) and C (ie., C.). Find the probability that a growing radical chain at steady state is of type A., B., or C.. Note that the probabilities are defined as concentration ratios; for example, for radical of type A. we have P₁ = A·/(A + B + C.). In order to evaluate them, start by balancing separately radicals of type A-, B-, and C..

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A B C K PA BA B K PC AC C A B C K PA BA B A B C K PC AC C A B C A B C K PA BA BA K P... View the full answer