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chain transfer
(redirected from Chain transfer agent)

   Also found in: Wikipedia 0.01 sec.
chain transfer [′chān ‚tranz·fər]
(organic chemistry)
The abstraction of an atom from another molecule (initiator, monomer, polymer, or solvent) by the radical end of a growing (addition) polymer, which simultaneously terminates the polymer chain and creates a new radical capable of chain polymerization; also occurs in cationic polymerization.


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22-24) In the presence of a chain transfer agent (CTA), transfer of propagating radicals to the CTA dominates all other chain transfer processes.
Synthesis of Poly(2-hydroxyethyl methacrylate) PHEMA, whose molecular weight was controlled using a chain transfer agent, was synthesized by free radical polymerization using AIBN as the initiator and 1-dodecanethiol as the chain transfer agent.
The molecular weight of the model thickeners was controlled by the amount of chain transfer agent (CTA) added during polymerization.
 
 
 
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