Experimental investigation of vinyl chloride polymerization at high conversion: effect of polymerization conditions on polymer properties

A series of poly(vinyl chloride) (PVC) samples was synthesized under various polymerization conditions. It was found that the thermal stability of PVC as measured by dehydrochlorination rate is independent of monomer conversion when the conversion is less than Xf (the conversion at the pressure drop). However, the dehydrochlorination rate increases significantly with conversion for conversions greater than Xf. The thermal stability of PVC …