Abstract
To date, solving the issues of the safety of produc� tion and use of poly(vinyl chloride) [–CH2–CHCl–]n (PVC) has been limited to studying its flammability and combustibility, whereas the issue of the possibility of its explosive decomposition under mechanical actions has been sidestepped. Thermodynamically, as most of the saturated polymers of the vinyl series, PVC is a nonequilibrium system. Calculations show that, in particular, the decomposition of the PVC monomer to yield HCl + C + CH 4 + H 2 is accompanied by significant (80 kJ/mol) heat release. However, actually, primary reactions of ther� mal decomposition of PVC are endothermic and PVC is stable even at higher (>100°С) temperatures. We
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