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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 polymerization, as well as anionic polymerization.

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  • Kettenübertragung (de)
  • Chain transfer (en)
  • Transfert de chaîne (fr)
  • 連鎖移動反応 (ja)
  • 链转移 (zh)
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  • Eine Kettenübertragung ist eine Reaktion im Verlauf einer Kettenpolymerisation, bei der die Aktivität einer wachsenden Polymerkette auf ein anderes Molekül übertragen wird: P• + XR' → PX + R'• Kettenübertragungsreaktionen verringern den mittleren Polymerisationsgrad des fertigen Polymers. Kettenübertragungen können entweder absichtlich (mit Hilfe eines Kettenübertragungsmittels) durchgeführt werden oder aber eine unvermeidbare Nebenreaktionen sein. Kettenübertragungsreaktionen kommen in den meisten Formen der Kettenpolymerisation vor, einschließlich radikalischer Polymerisation, ringöffnender Polymerisation, Koordinationspolymerisation und kationischer Polymerisation. (de)
  • 連鎖移動反応（れんさいどうはんのう、英: chain transfer）は、ラジカル重合において、成長ポリマー鎖のラジカルが別の分子（溶媒分子）に移動する反応である。 (ja)
  • 链转移（英語：chain transfer）指的是在聚合反应中，活性种Mx•（有可能是自由基、阴离子或阳离子）夺取另一分子YS中结合较弱的原子Y（氢或卤原子等）而发生终止，而YS失去Y后成为新的活性种S•这一过程可表示为：P• + YS → PY + S•链转移会在大多数加成聚合中都存在，包括自由基聚合、开环聚合、配位聚合和阴离子聚合反应。 (zh)
  • 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 polymerization, as well as anionic polymerization. (en)
  • En chimie des polymères, le transfert de chaîne est une étape de la polymérisation en chaîne à laquelle l'activité d'une chaîne polymère en croissance est transférée à une autre molécule. P• + XR' → PX + R'• (fr)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Termination_-_chain_transfer_-_monomer.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Termination_-_chain_transfer_-_polymer.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Termination_-_chain_transfer_-_solvent.png
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  • Chain transfer : Chemical reaction occurring during a chain polymerization in which an active center is transferred from a growing macromolecule or oligomer molecule to another molecule or to another site on the same molecule. Chain-transfer agent: Substance able to react with a chain carrier by a reaction in which the original chain carrier is deactivated and a new chain carrier is generated. (en)
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  • IUPAC definitions (en)
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  • 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 polymerization, as well as anionic polymerization. IUPAC definitions Chain transfer (in a chain polymerization): Chemical reaction occurring during a chain polymerization in which an active center is transferred from a growing macromolecule or oligomer molecule to another molecule or to another site on the same molecule. Chain-transfer agent: Substance able to react with a chain carrier by a reaction in which the original chain carrier is deactivated and a new chain carrier is generated. (en)
  • Eine Kettenübertragung ist eine Reaktion im Verlauf einer Kettenpolymerisation, bei der die Aktivität einer wachsenden Polymerkette auf ein anderes Molekül übertragen wird: P• + XR' → PX + R'• Kettenübertragungsreaktionen verringern den mittleren Polymerisationsgrad des fertigen Polymers. Kettenübertragungen können entweder absichtlich (mit Hilfe eines Kettenübertragungsmittels) durchgeführt werden oder aber eine unvermeidbare Nebenreaktionen sein. Kettenübertragungsreaktionen kommen in den meisten Formen der Kettenpolymerisation vor, einschließlich radikalischer Polymerisation, ringöffnender Polymerisation, Koordinationspolymerisation und kationischer Polymerisation. (de)
  • En chimie des polymères, le transfert de chaîne est une étape de la polymérisation en chaîne à laquelle l'activité d'une chaîne polymère en croissance est transférée à une autre molécule. P• + XR' → PX + R'• Les réactions de transfert de chaîne diminuent la masse moléculaire moyenne du polymère produit. Le transfert de chaîne peut être introduit dans une polymérisation par l'emploi d'un agent de transfert de chaîne, ou bien il peut être une réaction secondaire inévitable lors d'une polymérisation. Les réactions de transfert de chaîne se produisent dans la plupart des types de polymérisation en chaîne, y compris la polymérisation radicalaire, la polymérisation par ouverture de cycle, la polymérisation coordinative, la polymérisation cationique et la polymérisation anionique. (fr)
  • 連鎖移動反応（れんさいどうはんのう、英: chain transfer）は、ラジカル重合において、成長ポリマー鎖のラジカルが別の分子（溶媒分子）に移動する反応である。 (ja)
  • 链转移（英語：chain transfer）指的是在聚合反应中，活性种Mx•（有可能是自由基、阴离子或阳离子）夺取另一分子YS中结合较弱的原子Y（氢或卤原子等）而发生终止，而YS失去Y后成为新的活性种S•这一过程可表示为：P• + YS → PY + S•链转移会在大多数加成聚合中都存在，包括自由基聚合、开环聚合、配位聚合和阴离子聚合反应。 (zh)
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