Abstract
Iodine transfers into solid poly (vinyl acetate) (PVAc) in aqueous solution in the presence of potassium iodide, and forms the red—violet complex with PVAc. The reaction amount of iodine transfered into the PVAc particles, which were prepared by the suspension polymerization of vinyl acetate, was measured by a stopped-flow apparatus. The initial reaction amount transfered was proportional to the square root of the reaction time and to the concentrations of PVAc and iodine, and was in inverse proportion to the particle radius of PVAc. These results were in agreement with the theoretical equation derived by assuming that the transfer of iodine into the PVAc particles obeys Fick’s law. It was concluded that the initial reaction rate of iodine trasfer into the PVAc particles is controlled by diffusion of iodine into the particles.
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Hayashi, S., Kaneko, I. & Hojo, N. Reaction of Iodine into Poly(vinyl acetate) Particles Suspended in Aqueous Solution in the Presence of Potassium Iodide. Polym J 6, 33–38 (1974). https://doi.org/10.1295/polymj.6.33
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DOI: https://doi.org/10.1295/polymj.6.33
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