Method for producing cis - 1,4 - polidienos functionalized with high content of cis - 1,4 bond and high functionality

摘要

Method for producing cis - 1,4 - polidienos functionalized with high content of cis - 1,4 bond and high functionality.The present invention relates to a method for producing cis - 1,4 - polidienos functionalized with a combination of high content of cis - 1,4 bond and a high functionality.The resulting polymers and vulcanised products containing polymers.The cis - 1,4 - polidienos functionalized of this invention are produced by a method comprising the steps of: (1) preparing a reactive polymer by the polymerization of diene monomer in combination with a catBased on lantanu00eddeo straightener in the presence of less than 20% weight of organic solvent based on the total weight of the monomer, organic solvent, and the resulting polymer.Where the catalyst based on lantanu00eddeo is the combination or reaction product of (a) a compound of lantanu00eddeo, (b) a aluminoxano, (c) a compound of organoalumu00ednio different from a aluminoxano,And (d) a halogen containing compound; and (2) contacting the polymer reactive with an agent of funcionalizau00e7u00e3o.