I-Polyvinyl chloride (PVC), eyaziwa ngokuba yi-PVC, i-polymer eguquguqukayo esetyenziswa kwiindidi ezahlukeneyo zamashishini. Iveliswa nge-polymerizing vinyl chloride monomer (VCM) ngokusebenzisa i-free-radical polymerization mechanism ngoncedo lweeperoxides, i-azo compounds okanye ezinye iziqalisi, kunye nokukhanya kunye nobushushu. I-PVC ibandakanya i-vinyl chloride homopolymers kunye ne-vinyl chloride copolymers, ngokudibeneyo ebizwa ngokuba yi-vinyl chloride resins. Ngeempawu zayo ezibalaseleyo kunye nokuguquguquka, iPVC iye yaba yinto ekhethwayo kwizicelo ezininzi.