Polymerization transition metal dithiocarbamates

Dithiocarbamates can also be prepared from diamines. For example, as early as 1872, Hofmann (97) reported the reaction of carbon disulfide with 1,2-diaminoethane. Later in the 1960s, addition of 2 equiv of sodium hydroxide and carbon disulfide to 1,2-diaminoethane was shown to afford the bis(dithiocarba-mate) compound in an exothermic reaction (98-102) 1,6-diaminohexane behaving in a similar manner (98). A wide range of polymeric transition metal complexes have been prepared using these salts (98). All are insoluble in water and common organic solvents, and some examples have been developed as fungicides (14, 31). 

Fabretti et al. (103) showed that a similar transformation can be effected with piperazine and again a wide range of polymeric transition metal complexes have been prepared, as have related derivatives of the dithiocarbamate derived from homopiperazine (Fig. 12) (104). 

Keywords Controlled Polymerization Living Radical Polymerization Iniferter Chain-End Structure Molecular Weight Control Block Copolymer Dithiocarbamate Disulfide Nitroxide Transition Metal Complex... 

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