Collision- and Diffusion-Controlled Models

Smith and Ewart [1] proposed that the rate of absorption of free radicals by a latex particle is expressed as follows  

The concept of free radical capture efficiency was incorporated into the work of Hansen and Ugelstad [26,27], Based on the mechanism of mass transfer with simultaneous chemical reactions, the net rate of absorption of free radicals by a single latex particle (pJNp) can be written as 

Another useful expression for the free radical capture efficiency factor F) is shown below  

The parameter kdes in this equation can be calculated by the following expression [11, 28, 29]  

styrene MMA, methyl methacrylate BA, w-butyl acrylate VAc, vinyl acetate Veova 10, a commercially available comonomer. 

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