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- Chain_transfer abstract "Chain transfer is a polymerization reaction by which the activity of a growing polymer chain is transferred to another molecule.P• + XR' → PX + R'•Chain transfer reactions reduce the average molecular weight of the final polymer. Chain transfer can be either introduced deliberately into a polymerization (by use of a chain transfer agent) or it may be an unavoidable side-reaction with various components of the polymerization. Chain transfer reactions occur in most forms of addition polymerization including radical polymerization, ring-opening polymerization, coordination polymerization, and cationic as well as anionic addition polymerization.Chain transfer reactions are usually categorized by the nature of the molecule that reacts with the growing chain. Transfer to chain transfer agent. Chain transfer agents have at least one weak chemical bond, which therefore facilitates the chain transfer reaction. Common chain transfer agents include thiols, especially DDM, and halocarbons such as carbon tetrachloride. Chain transfer agents are sometimes called modifiers or regulators. Transfer to monomer. Chain transfer to monomer may take place in which the growing polymer chain abstracts an atom from unreacted monomer existing in the reaction medium. Because, by definition, polymerization reactions only take place in the presence of monomer, chain transfer to monomer determines the theoretical maximum molecular weight that can be achieved by a given monomer. Chain transfer to monomer is especially significant in cationic addition polymerization and ring-opening polymerization. Transfer to polymer. Chain transfer may take place with an already existing polymer chain, especially under conditions in which much polymer is present. This often occurs at the end of a radical polymerization when almost all monomer has been consumed. Branched polymers are formed as monomer adds to the new radical site which is located along the polymer backbone. The properties of low-density polyethylene are critically determined by the amount of chain transfer to polymer that takes place. Transfer to solvent. In solution polymerization, the solvent can act as a chain transfer agent. Unless the solvent is chosen to be inert, very low molecular weight polymers (oligomers) can result.↑ ↑ ↑ ↑".
- Chain_transfer wikiPageID "8395423".
- Chain_transfer wikiPageLength "9544".
- Chain_transfer wikiPageOutDegree "43".
- Chain_transfer wikiPageRevisionID "666998139".
- Chain_transfer wikiPageWikiLink Active_center_(polymer_science).
- Chain_transfer wikiPageWikiLink Branching_(polymer_chemistry).
- Chain_transfer wikiPageWikiLink Carbon_tetrachloride.
- Chain_transfer wikiPageWikiLink Category:Polymer_chemistry.
- Chain_transfer wikiPageWikiLink Category:Polymerization_reactions.
- Chain_transfer wikiPageWikiLink Cationic_as_well_as_anionic_addition_polymerization.
- Chain_transfer wikiPageWikiLink Chain-growth_polymerization.
- Chain_transfer wikiPageWikiLink Chemical_bond.
- Chain_transfer wikiPageWikiLink Chemical_reaction.
- Chain_transfer wikiPageWikiLink Coordination_polymerization.
- Chain_transfer wikiPageWikiLink Dodecyl_mercaptan.
- Chain_transfer wikiPageWikiLink DuPont.
- Chain_transfer wikiPageWikiLink Emulsion_polymerization.
- Chain_transfer wikiPageWikiLink Ethyl_group.
- Chain_transfer wikiPageWikiLink Ethylene.
- Chain_transfer wikiPageWikiLink Halocarbon.
- Chain_transfer wikiPageWikiLink Hugh_Stott_Taylor.
- Chain_transfer wikiPageWikiLink Hydrogen.
- Chain_transfer wikiPageWikiLink IG_Farben.
- Chain_transfer wikiPageWikiLink Inert.
- Chain_transfer wikiPageWikiLink Living_polymerization.
- Chain_transfer wikiPageWikiLink Low-density_polyethylene.
- Chain_transfer wikiPageWikiLink Molecular_mass.
- Chain_transfer wikiPageWikiLink Molecule.
- Chain_transfer wikiPageWikiLink Monomer.
- Chain_transfer wikiPageWikiLink Oligomer.
- Chain_transfer wikiPageWikiLink Paul_Flory.
- Chain_transfer wikiPageWikiLink Polyethylene.
- Chain_transfer wikiPageWikiLink Polymer.
- Chain_transfer wikiPageWikiLink Polymerization.
- Chain_transfer wikiPageWikiLink Radical_polymerization.
- Chain_transfer wikiPageWikiLink Reconstruction_Finance_Corporation.
- Chain_transfer wikiPageWikiLink Reversible_addition−fragmentation_chain-transfer_polymerization.
- Chain_transfer wikiPageWikiLink Ring-opening_polymerization.
- Chain_transfer wikiPageWikiLink Solution_polymerization.
- Chain_transfer wikiPageWikiLink Styrene-butadiene.
- Chain_transfer wikiPageWikiLink Thiol.
- Chain_transfer wikiPageWikiLink United_States_Rubber_Company.
- Chain_transfer wikiPageWikiLink World_War_II.
- Chain_transfer wikiPageWikiLinkText "Chain transfer".
- Chain_transfer wikiPageWikiLinkText "chain transfer".
- Chain_transfer wikiPageWikiLinkText "transfer".
- Chain_transfer quote "Chain transfer : Chemical reaction occurring".
- Chain_transfer quote "carrier is generated.".
- Chain_transfer quote "during a chain polymerization in which an active center is transferred".
- Chain_transfer quote "from a growing macromolecule or oligomer molecule to another molecule".
- Chain_transfer quote "or to another site on the same molecule. Chain-transfer agent: Substance able to react with a chain carrier by a".
- Chain_transfer quote "reaction in which the original chain carrier is deactivated and a new chain".
- Chain_transfer title "IUPAC definitions".
- Chain_transfer wikiPageUsesTemplate Template:Quote_box.
- Chain_transfer subject Category:Polymer_chemistry.
- Chain_transfer subject Category:Polymerization_reactions.
- Chain_transfer hypernym Reaction.
- Chain_transfer type Disease.
- Chain_transfer type Reaction.
- Chain_transfer type Redirect.
- Chain_transfer comment "Chain transfer is a polymerization reaction by which the activity of a growing polymer chain is transferred to another molecule.P• + XR' → PX + R'•Chain transfer reactions reduce the average molecular weight of the final polymer. Chain transfer can be either introduced deliberately into a polymerization (by use of a chain transfer agent) or it may be an unavoidable side-reaction with various components of the polymerization.".
- Chain_transfer label "Chain transfer".
- Chain_transfer sameAs Q3737603.
- Chain_transfer sameAs Kettenübertragung.
- Chain_transfer sameAs Ahela_ülekanne.
- Chain_transfer sameAs 連鎖移動反応.
- Chain_transfer sameAs m.0271zcg.
- Chain_transfer sameAs Q3737603.
- Chain_transfer sameAs 链转移.
- Chain_transfer wasDerivedFrom Chain_transfer?oldid=666998139.
- Chain_transfer isPrimaryTopicOf Chain_transfer.