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The Mayo–Lewis equation or copolymer equation in polymer chemistry describes the distribution of monomers in a copolymer. It was proposed by Frank R. Mayo and . The equation considers a monomer mix of two components and and the four different reactions that can take place at the reactive chain end terminating in either monomer ( and ) with their reaction rate constants : The reactivity ratio for each propagating chain end is defined as the ratio of the rate constant for addition of a monomer of the species already at the chain end to the rate constant for addition of the other monomer.

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  • Équation de Mayo-Lewis (fr)
  • Mayo–Lewis equation (en)
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  • L'équation de Mayo-Lewis concerne l'obtention de copolymères diblocs par polyaddition. Elle permet de relier la composition instantanée du copolymère (pourcentage d'unités A et B) à la composition du mélange de monomères (pourcentage de monomères A et B). Elle donne également une idée de la structure du copolymère : statistique, à bloc, alterné… L'équation est la suivante : Les concentrations en monomères sont données entre crochets. Les et sont les rapports de réactivité, caractéristiques d'un couple de monomères à une température donnée. (fr)
  • The Mayo–Lewis equation or copolymer equation in polymer chemistry describes the distribution of monomers in a copolymer. It was proposed by Frank R. Mayo and . The equation considers a monomer mix of two components and and the four different reactions that can take place at the reactive chain end terminating in either monomer ( and ) with their reaction rate constants : The reactivity ratio for each propagating chain end is defined as the ratio of the rate constant for addition of a monomer of the species already at the chain end to the rate constant for addition of the other monomer. (en)
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  • The Mayo–Lewis equation or copolymer equation in polymer chemistry describes the distribution of monomers in a copolymer. It was proposed by Frank R. Mayo and . The equation considers a monomer mix of two components and and the four different reactions that can take place at the reactive chain end terminating in either monomer ( and ) with their reaction rate constants : The reactivity ratio for each propagating chain end is defined as the ratio of the rate constant for addition of a monomer of the species already at the chain end to the rate constant for addition of the other monomer. The copolymer equation is then: with the concentrations of the components in square brackets. The equation gives the relative instantaneous rates of incorporation of the two monomers. (en)
  • L'équation de Mayo-Lewis concerne l'obtention de copolymères diblocs par polyaddition. Elle permet de relier la composition instantanée du copolymère (pourcentage d'unités A et B) à la composition du mélange de monomères (pourcentage de monomères A et B). Elle donne également une idée de la structure du copolymère : statistique, à bloc, alterné… L'équation est la suivante : Les concentrations en monomères sont données entre crochets. Les et sont les rapports de réactivité, caractéristiques d'un couple de monomères à une température donnée. (fr)
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