- ATRP (chemistry)
ATRP or Atom Transfer Radical Polymerization is a
polymerization reaction involving free radicals. It was introduced as an extension to ATRA or Atom Transfer Radical Addition byJin-Shan Wang et al , (1995) andMitsuo Sawamoto et al . (1994/5). As a "living radical polymerization" which is a form ofliving polymerization , it allows the reaction to be carried out in a controlled way, and can be used to obtain polymers with highmolecular weight and lowpolydispersity index .This control result from the use of a transition metal based catalyst. This catalyst provides an equilibrium between active, and therefore propagating, polymer and an inactive form of the polymer; known as the dormant form. Since the dormant state of the polymer is vastly preferred in this equilibrium, side reactions are suppressed.
By lowering the concentration of radicals, termination is suppressed and control is achieved.
ee also
*
Heteropolymer
*Radical (chemistry) References
* Fried, Joel, (2003). Polymer Science & Technology (2nd Ed), Chap 2. Prentice Hall. ISBN 0-13-018168-4.
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