RADIATION-INDUCED SOLUTION CHLORINATION OF PVC

The high solubility in the usual solvents makes the chlorinated PVC mo st suitable for laquers, adhesives and fibres. For this reason, the ra diation-induced solution chlorination of PVC in methylene chloride was studied. The results of many experiments show that during the reactio n between chlorine and PVC the solvent (methylene chloride) is chlorin ated only in a small percentage to chloroform (9.5%) and finally to te trachloromethane (0.1%). It was found that the radiation-induced chlor inated PVC has the same structure as the thermally chlorinated polymer , while the thermal stability and the rate of degradation of the radia tion products show the better data for application purposes.