Copolymer averaged rate, coefficient for propagation

The form of Eq. (47) is analogous to the homopolymerization rate expression [Eq. (10)], with a copolymer-averaged rate coefficient for propagation (generalized for a system with Nmon different monomers) defined in Eq. (50). 

In the case of copolymerization, the copolymer-averaged rate coefficient for propagation shonld be used instead of k and [A/]p represents the total monomer concentration in the polymer particles [11]. 

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