C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/00 (2006.01) C08F 2/38 (2006.01) C08F 279/02 (2006.01) C08F 291/00 (2006.01)
Patent
CA 2185164
A method for polymerising or copolymerising at least one radical-polymerisable monomer in the presence of a stable free radical from the nitroxide family. The stable free radical is beta -substituted and provides excellent polydispersity control while improving the polymerisation or copolymerisation rate compared with prior art stable free radicals.
L'invention concerne un procédé de polymérisation ou copolymérisation d'au moins un monomère polymérisable par voie radicalaire en présence d'un radical libre stable de la famille des nitroxydes. Le radical libre stable est .beta.-substitué et procure un excellent contrôle de la polydispersité tout en assurant une meilleure vitesse de polymérisation ou copolymérisation, si on les compare avec les radicaux libres stables mis en oeuvre par l'art antérieur.
Finet Jean-Pierre
Gnanou Yves
Grimaldi Sandra
Lemoigne Francois
Nicol Pascal
Atofina
Elf Atochem S.a.
Robic
LandOfFree
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