A process for the preparation of a copolymer based on vinyl...

Details A process for the preparation of a copolymer based on vinyl... A process for the preparation of a copolymer based on vinyl...

C - Chemistry, Metallurgy

08

F

C08F 236/10 (2006.01)

Patent

CA 2316770

According to the process of the invention, copolymers based on vinyl aromatic compounds and conjugated dimes with an average molecular weight (Mn) from 50,000 to 600,000 g/mole, a vinyl aromatic compound content from S to 50 wt.% and a conjugated dime content from SO to 95 wt.% are prepared by reacting a vinyl aromatic compound with a conjugated dime in the presence of a lithium metal- containing initiator, wherein polymerization is controlled such that the damping in the glass process encompasses a frequency range which is characterized in that the half width of the maximum of the loss factor tan 8 is greater than 3 frequency decades.

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