“…of the thiocol and low molecular weight model mercaptans in the case of MMA and St polymerizations [10,11], which allows us to reasonably suppose that the same happens for VAc monomer, and therefore the C T of the thiocol terminal groups in VAc polymerization is very high, similar to that reported in the case of 2-mercaptoethanol. Therefore, the SH groups of the thiocol should be very rapidly consumed at the beginning of the polymerization, and as a consequence, their influence upon the process should be low.…”