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Abstract
The involvement of different sulfur-organic compounds in the initiation of radical polymerizations has been considered. Sulfides, disulfides, polysulfides, thiols, sulfenamides, and azo sulfides have been shown to generate radicals due to the cleavage of sulfur bonds. Sulfur-containing peroxides as well as thioacetals and thioketals have been chosen to illustrate the effect of sulfur upon the homolytic fission of different bonds such as C-O, O-O, and C-C. Numerous examples have been considered for the application of sulfur-organic compounds as components in redox systems, wherein the radicals initiating the polymerization are generated by oxidation or reduction of the sulfur-containing compounds involved.