Polymerization initiator, modified-conjugated diene polymer and tire produced therefrom
AssigneeLG Chem, Ltd.
InventorsRo Mi Lee, Du Weon Yoon, Chang Woo Kim, Jun Hyun Park, Sang Mi Lee
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Abstract
The present disclosure relates to a polymerization initiator and a modified conjugated diene polymer prepared using the same, and more particularly to a polymerization initiator which is a compound represented by the following formula 1, and a modified conjugated diene polymer prepared using the same: wherein R1 to R5 are each independently hydrogen or a C1-10 alkylgroup or its carbanion; n− represents the number of negative charges of the carbanion and is 1− to 5−; M is a metal; and n is equal to the number of carbanions in R1 to R5.
Claims8
A polymerization initiator which is a compound represented by Formula 1:
- wherein R1 is carbanion of a C1-10 alkyl group;
- R2 to R5 are hydrogen;
- n− represents the number of negative charges of the carbanion and is 1− to 5−;
- M is a metal;
- wherein the polymerization initiator is made by reacting a compound represented by Formula 3 with a compound represented by Formula 4:
- wherein R6 is a C1-10 alkyl group;
- and R7 to R10 are hydrogen;
- and
- R(Li)x [Formula 4]
- wherein R is a C1-20 hydrocarbyl group, and x is an integer ranging from 1 to 4, wherein a molar ratio between the compound of Formula 3 and the compound of Formula 4 is 1:1.1 to 1:1.4.
A polymerization initiator solution comprising a polymerization initiator represented by Formula 1, a solvent and a polar additive:
- wherein R1 is carbanion of a C1-10 alkyl group;
- R2 to R5 are hydrogen;
- n− represents the number of negative charges of the carbanion and is 1− to 5−;
- M is a metal;
- wherein the polymerization initiator is made by reacting a compound represented by Formula 3 with a compound represented by Formula 4:
- wherein R6 is a C1-10 alkyl group;
- and R7 to R10 are hydrogen;
- and
- R(Li)x [Formula 4]
- wherein R is a C1-20 hydrocarbyl group, and x is an integer ranging from 1 to 4, wherein a molar ratio between the compound of Formula 3 and the compound of Formula 4 is 1:1.1 to 1:1.4.
Dependencies are inferred from the claim text.