POLYMERISATION INITIATORS Russian patent published in 2018 - IPC C08F36/06 C08F12/08 C08F236/06 C08F212/08 C08F4/48 C08F4/46 C08F8/00 C08F8/34 C08L21/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a polymerisation initiator represented by by Formula 1:

(1)

or its adducts with Lewis bases. In Formula 1, each M¹ is independently selected from lithium, sodium and potassium. each R¹ is independently selected from (C₁-C₁₈) alkyl, each R¹² is hydrogen, each Y¹ is independently selected from nitrogen atom and sulfur atom, R³, R⁴ and R⁵ each is independently selected from (C₁-C₁₈) alkyl, n and o each is an integer selected from 0 and 1, and n+o=1 if Y¹=N, and n=o=0 if Y¹=S, m represents an integer number selected from 1, 2 and 3, each E is independently selected from -Y³(R⁹)(R¹⁰)_t(R¹¹)_u, where Y³ is selected from a nitrogen atom and sulfur atom, R⁹, R¹⁰ and R¹¹ each is independently selected from (C₁-C₁₈) alkyl, t and u each is integer selected from 0 and 1, and t+u=1 if Y³=N, and t=u=0 if Y³=S, s represents an integer number selected from 0, 1 and 2, each F is independently selected from Y²(R⁶)(R⁷)_q(R⁸)_r, where Y² is selected from nitrogen atom and sulfur atom, R⁶, R⁷ and R⁸ each is independently selected from (C₁-C₁₈) alkyl, q and r each is integer selected from 0 and 1; and q+r=1 if Y²=N, and q=r=0 if Y²=S, p is integer from, selected from 1, 2 and 3, K represents >C-H. Also disclosed is a method for producing a polymerisation initiator, a method for producing a polymer, a polymer or polymer modified at the end of the chain, a polymer composition for preparing vulcanised compositions, a vulcanised polymer composition, a process for its preparation, and an article.

EFFECT: vulcanised polymer compositions based on polymers prepared using an initiator in accordance with the present invention have a relatively low rebound resilience at 0 °C, relatively low heat build-up and a relatively low DIN abrasion.

25 cl, 6 tbl