Dithiyl radical

Dithiyl radicals seem to be especially attractive because they can form extended homopolymer films. If one uses a simple compound that is capable of forming dithiyl radical, then that can open a way for formulation of a lubrication composition. For example, a poly(disulfide) was obtained as a result of a two-electron transfer to 2,5-di(thiocyanato)thiophene (Scheme 8.16) (Todres et al. 1979, Todres 1991). 

Various amides have been found to accelerate the photopolymerisation of methyl methacrylate in the presence of oxygen due to the formation of an oxygen-amide complex while flash photolysis has indicated that dithiyl radicals are involved in the photopolymerisation of styrene by lipoamide . 

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