Growth of two droplet families and a polymer seed family as a function of percent monomer conversion in PVC miniemulsion synthesis demonstrates that polymerization in droplets predominates to ∼ 30–40% conversion, whereupon polymerization of seed becomes favored. This difference appears to be due to a liquid‐to‐solid phase change in the forming particles during the course of polymerization.
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Dewald et al. (1984) studied this question.