Suspension polymerization of vinyl chloride was carried out at temperatures of ‐30° to +30°C. with the use of a monomer‐soluble oxidation‐reduction initiator system. A typical initiator system was composed of lauroyl peroxide and ferrous n ‐caproate. The effects of temperature, molar ratio of peroxide to reducing agent, and total concentration of initiator upon the rate and degree of polymerization were observed. The activation energy of the overall rate of polymerization was 6.5 kcal./mole. Experimental evidence which may serve to elucidate the mechanism of the redox reaction in the nonemulsified system is discussed.
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Konishi et al. (1961) studied this question.
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