Transition metal-free initiator for the preparation of...

Details Transition metal-free initiator for the preparation of... Transition metal-free initiator for the preparation of...

C - Chemistry, Metallurgy

08

F

C08F 10/10 (2006.01) C08F 4/647 (2006.01) C08F 210/12 (2006.01) C08F 110/10 (2006.01)

Patent

CA 2360611

There is disclosed a process for polymerizing a cationically polymerizable olefin comprising the step of polymerizing at least one cationically polymerizable olefin, preferably at subatmospheric pressure, in the presence of an initiator system which comprises a Lewis acid and an activator which is a proton source, such as an alcohol, a thiol, a carboxylic acid, a thiocarboxylic acid and the like. The initiator system does not contain a transition-metal compound.

On divulgue un procédé de polymérisation d'une oléfine polymérisable par voie cationique, procédé comprenant une étape de polymérisation d'au moins une oléfine polymérisable par voie cationique, idéalement à pression subatmosphérique, en présence d'un initiateur composé d'un acide de Lewis et d'un activateur constituant la source de protons, par exemple un alcool, un thiol, un acide carboxylique, un acide thiocarboxylique ou un composé apparenté. L'initiateur ne renferme pas de composé d'un métal de transition.

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