Graft copolymerization of poly(vinyl chloride) (PVC) partially dehydrochlorinated by heating in nitrobenzene was investigated using styrene as monomer and anhydrous AlCl3 as cationic initiator in the temperature range of 0–35°C. Effect of monomer, catalyst, and PVC concentration on % graft‐on was also evaluated. Introduction of labile sites in PVC by partial dehydrochlorination in nitrobenzene resulted in an increase in % graft‐on. Intrinsic viscosity of PVC–g–polystyrene in THF initially increased with an increase in % graft‐on. At higher % graft‐on a decrease in [η] was observed.
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Sharma et al. (1980) studied this question.
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