end group functionalized polymers, use of bis (trialkylsilyl) peroxides as functionalization reagents, process for producing end group functionalized polymers, use of end group functionalized polymers, vulcanizable rubber compositions, use of vulcanizable rubber compositions, tires and molds

摘要

End group functionalized polymer exhibiting a trialkylsilyloxy group (I) at its chain end, is new. End group functionalized polymer exhibiting a trialkylsilyloxy group of formula (-(O-Si(R1)(R3)-R2)) (I) at its chain end, is new. R1-R3 : alkyl, cycloalkyl or aralkyl (contains O, N, S or Si). Independent claims are also included for: (1) preparing the end groups functionalized polymer; (2) a vulcanizable rubber composition comprising antioxidants, oils, fillers, rubber and/or rubber auxiliaries, and the end group functionalized polymer having end groups (I) or hydroxyl end groups produced from (I); (3) tires obtainable from the vulcanizable rubber composition; and (4) moldings obtainable from the vulcanizable rubber composition.