Anionic polymerization process

C - Chemistry – Metallurgy – 08 – C

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C08C 19/44 (2006.01) C08F 8/00 (2006.01)

Patent

CA 1283995

A B S T R A C T ANIONIC POLYMERIZATION PROCESS Process for preparing polymers which may be coupled at temper- atures above 200 °C by first reacting conjugated dienes and/or monoalkenyl arenes with an organomonolithium initiator and then reacting the resulting polymeric arms with arylcyclobutene monomers having the formula Image or Image where X is alkylene or arylene, Z is arylcyclobutene and R is H, aryl, alkyl or Image , R1 being aryl or alkyl.

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