Terminally iodized polyfluoroalkane oligomer and method for...

C - Chemistry – Metallurgy – 07 – C

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C07C 19/16 (2006.01) C07C 17/278 (2006.01)

Patent

CA 2642730

Disclosed is a terminally iodized polyfluoroalkane oligomer represented by the following general formula [I]: CnF2n+1(CH2CF2)s+p(CF2CF2)t+rI (wherein n is an integer of 1-6, s + p is an integer of 1-4 representing the number of vinylidene fluoride backbones, t + r is an integer of 1-6 representing the number of tetrafluoroethylene backbones, and the group adjacent to the CnF2n+1 group is the CH2CF2 group). This terminally iodized polyfluoroalkane oligomer is produced by reacting a terminally iodized polyfluoroalkane represented by the following general formula : CnF2n+1(CH2CF2)s+p(CF2CF2)tI with tetrafluoroethylene in the presence of a peroxide initiator.

La présente invention concerne un oligomère polyfluoroalcane à terminaison iodée représenté par la formule générale [I] : CnF2n+1(CH2CF2)s+p(CF2CF2)t+rI (dans laquelle n est un nombre entier valant de 1 à 6, la somme s + p est un nombre entier valant de 1 à 4 représentant le nombre de squelettes fluorure de vinylidène, t + r est un nombre entier valant de 1 à 6 représentant le nombre de squelettes tétrafluoroéthylène, et le groupe à côté du groupe CnF2n+1 est le groupe CH2CF2). Cet oligomère polyfluoroalcane à terminaison iodée est produit par la réaction d'un polyfluoroalcane à terminaison iodée représenté par la formule générale : CnF2n+1(CH2CF2)s+p(CF2CF2)tI avec un tétrafluoroéthylène en présence d'un initiateur de type peroxyde.

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