The initiator dicarbaniu00f4nico, their process of preparation and process for the preparation of polymer of alpha, Omega - difuncional and copolymer using said initiator triblock

摘要

The initiator dicarbanionico, a process for the preparation and use thereof.The present invention relates to a new dicarbaniu00f4ni co initiator of the formula (1), this process also provides a process for the preparation of initiator dicarbanlu00f3nico of formula (1) compreendEndo reaction of 1 - bromo - 4 - (4 '- bromofenu00f3xi) - 2 - pentadecil benzene of formula (II) with alkyl lithium compound to carry out an exchange reaction of Halo - Genius - Lithium Bromine - 1 - 4 - (4' - bromofenu00f3xi) - 2 -Pentadecil benzene with SEC butyl lithium in the presence of a non polar solvent.In a temperature in the range of the 25 198 C and its use as an initiator for the synthesis of polidienos telequu00e9licos polystyrene and copolymers and triblock of SIS or SBS.