a synthetic polyisoprene latex emulsion has pre - vulcanization composition and post vulcanization composition . the pre - vulcanization composition comprises soluble sulfur with high s 8 ring structure that is catalytically broken by a zinc dithiocarbamate . surfactants present in the pre - vulcanization composition wets synthetic polyisoprene particles and permeates small sized sulfur and accelerator molecules into the interior of these particles thereby pre - vulcanizing the particles . the degree of pre - vulcanization is verified by isopropanol index test . the latex emulsion has post - vulcanization composition with accelerators that crosslink inter - particle region during post vulcanization cure cycle . the dipped synthetic polyisoprene article is substantially uniformly cured both in the inter - particle and intra - particle regions and reliably exhibits high cross link density , uniform distribution of double bonds in tem and zinc segregation at the boundaries or original particles by electron microprobe analysis . the films exhibit high tensile strength , tensile modulus , tear strength , burst pressure and burst volume .