kjedeoverføringsagent
A kjedeoverføringsagent, often translated as chain transfer agent, is a substance used in free radical polymerization. Its primary function is to control the molecular weight of the polymer being produced. This is achieved by interrupting the growth of a polymer chain and initiating a new one.
During free radical polymerization, monomer units add sequentially to a growing polymer chain. A kjedeoverføringsagent reacts
The effect of a kjedeoverføringsagent is to reduce the average molecular weight of the polymer. By providing
Common examples of kjedeoverføringsagenter include thiols, such as dodecyl mercaptan, and some halogenated compounds. The choice