Chain Transfer Agent. This reaction is known as backbiting. Transfer to chain transfer agent.
Industrial free radical polymerizations are not normally run in solution for economic reasons and the chain transfer agents in these reactions are ingredients that are added deliberately to limit the molecular weight of the polymer. Transfer to chain transfer agent. An agent representing a selling club can earn a maximum of 10 per cent of the transfer fee.
They are added to control the molecular weight of a polymer by transferring a propagating radical to the chain transfer agent ax 63.
The use of mercaptans allows for fine control of the molecular chain length during polymerization leading to easy processing conditions and mechanical performance of the resulting polymer. The use of mercaptans allows for fine control of the molecular chain length during polymerization leading to easy processing conditions and mechanical performance of the resulting polymer. Commonly used raft agents include thiocarbonylthio compounds such as dithioesters 1 dithiocarbamates 45 trithiocarbonates 6 and xanthates 7 which mediate the polymerization via a reversible chain transfer process. The most commonly employed chain transfer agents ia emulsion polymerisation are mercaptans disulfides carbon tetrabromide and carbon tetrachloride.