▎ 摘　　要

NOVELTY - Vinyldisiloxane compounds (1) are new. USE - (I) are useful for preparing elastomeric polymer in non-vulcanized polymer composition which is used in article which is tire, tire tread, tire side wall, tire carcass, belt, gasket, seal, hose, vibration damper, footwear component, golf ball or hose, preferably tire (all claimed). ADVANTAGE - (I) provides vulcanized polymer compositions which have superior properties e.g. improved performance balance which is represented by a balance of rolling resistance and wet grip performance paired with acceptable or even improved processing and mechanical properties e.g. abrasion (abrasion resistance) and handling characteristics. DETAILED DESCRIPTION - Vinyldisiloxane compounds of formula (VS1-(X1)) (1) are new. VS1=vinyldisiloxane moiety; X1=organic group which is bonded to a silicon-atom of the vinyldisiloxane moiety and has at least one tertiary amino group A; and m=1 or 2. INDEPENDENT CLAIMS are also included for: (1) preparing an elastomeric polymer, comprising polymerizing at least one conjugated diene monomer and optionally at least one aromatic vinyl monomer in the presence of at least one initiator compound and at least one (I): (2) an elastomeric polymer obtainable by the process; (3) a non-vulcanized polymer composition comprising the elastomeric polymer and at least one additive; (4) a vulcanized polymer composition obtainable by vulcanizing the polymer composition; (5) making a vulcanized polymer composition, comprising vulcanizing the polymer composition; and (6) an article comprising at least one component formed from the vulcanized polymer composition.