Chlorination of PVC has been studied in DMF solution at varying temperatures. It was found that PVC may be chlorinated to 58,2 % chlorine content in temperature range of 25–50°C. Dehydrohalogenation of the polymers was noted at higher temperatures. In IR‐spectra carbonyl compounds were found as the oxidation products of PVC. The evaluation of the thermal stability of the polymers was carried out using DSC‐calorimetry. The results show that the chlorinated product possesses pooper thermal stability than that of the original PVC. The chlorination mechanism is discussed and the aprotic nature of DMF was proposed to be the influencing factor in the reaction.
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Väinö A. Erä (1971) studied this question.
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