Control of the radical polymerization acrylates, styrene and vinyl acetate
has been achieved using novel dithiocarbamates as reversible addition-fragm
entation chain transfer agents. The key parameter for the control with N,N-
disubstituted (A) or cyclic (B) dithiocarbamates was round to be the conjug
ation of the lone of pair of electrons of the nitrogen atom with carbonyl o
r aromatic groups.