PVC-SR was prepared from the reaction of PVC and sodium N,N-diethyldit
hiocarbamate. Products of self-crosslinked PVC-SR and co-crosslinked P
VC-SR/NBR blend were obtained under heating, Effects of temperature an
d weight of sodium N,N- diethyldithiocarbamate on substitution reactio
n and degree of functionality of PVC-SR on the gel content, tensile pr
operties and compress set of crosslinked products were investigated, M
echanism of crosslinking reaction was discussed.