Reversible-deactivation radical polymerization
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Chain polymerization, propagated by radicals that are deactivated reversibly, bringing them into active/dormant equilibria of which there might be more than one.[1]
See also reversible-deactivation polymerization RDP.
In polymer chemistry, reversible-deactivation radical polymerizations (RDRPs) are members of the class of reversible-deactivation polymerizations which exhibit much of the character of living polymerizations, but cannot be categorized as such as they are not without chain transfer or chain termination reactions.[2][3] Several different names have been used in literature, which are:
- Living radical polymerization
- Living free radical polymerization
- Controlled/"living" radical polymerization
- Controlled radical polymerization
- Reversible deactivation radical polymerization
Though the term "living" radical polymerization was used in early days, it has been discouraged by IUPAC, because radical polymerization cannot be a truly living process due to unavoidable termination reactions between two radicals. The commonly used term controlled radical polymerization is permitted, but reversible-deactivation radical polymerization or controlled reversible-deactivation radical polymerization (RDRP) is recommended.
- ^ Jenkins AD, Jones RG, Moad G (2009). "Terminology for reversible-deactivation radical polymerization previously called "controlled" radical or "living" radical polymerization (IUPAC Recommendations 2010)". Pure and Applied Chemistry. 82 (2): 483–491. doi:10.1351/PAC-REP-08-04-03. ISSN 1365-3075.
- ^ Szwarz, M. (1956). "'Living' Polymers". Nature. 178 (1): 1168–1169. Bibcode:1956Natur.178.1168S. doi:10.1038/1781168a0.
- ^ Szwarz, M. (2000). "Comments on "Living Polymerization: Rationale for Uniform Terminology" by Darling et al". J. Polym. Sci. A. 38 (10): 1710. Bibcode:2000JPoSA..38.1710S. doi:10.1002/(SICI)1099-0518(20000515)38:10<1710::AID-POLA40>3.0.CO;2-K.