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Reversible-deactivation polymerization

polymerization mechanism

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionOct 22, 2023
Entity authorityQ16978787
Source-derived summary

In polymer chemistry, reversible-deactivation polymerization (RDP) is a form of polymerization propagated by chain carriers, some of which at any instant are held in a state of dormancy through an equilibrium process involving other species.

An example of reversible-deactivation anionic polymerization (RDAP) is group transfer polymerization of alkyl methacrylates, where the initiator and the dormant state is a silyl ketene acetal.

In the case of reversible-deactivation radical polymerization (RDRP), a majority of the chain must be held in a dormant state to ensure that the concentration of active carriers is sufficiently low as to render chain termination reactions negligible.

Despite having some common features, RDP is distinct from living polymerization which requires a complete absence of termination and irreversible chain transfer.

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The public source identifies “Reversible-deactivation polymerization” as polymerization mechanism. This brief keeps that definition visible, then builds a research path around Reversible-deactivation, polymerization and mechanism.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current 121-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Reversible-deactivation, polymerization and mechanism providing the first useful test.
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This entry incorporates text from Reversible-deactivation polymerization” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.