| 简介 |
PROBLEM TO BE SOLVED : To provide a manufacturing method of synthetic polyisoprene capable of efficiently synthesizing high molecular weight polyisoprene under an industrial condition without excess gelatinization.
SOLUTION : There is provided a manufacturing method of synthetic polyisoprene including polymerizing isoprene monomer in a presence of a rare earth element compound ((A) component) represented by the following general formula (i) : M-(NQ1)(NQ2)(NQ3), at least one kind ((B) component) selected from an ionic compound and a halogen compound and a compound ((C) component) represented by the following general formula (X) : YR1aR2bR3c, where the polymerization is conducted in a reaction system having a percentage content of a solvent of less than 5.0 wt.% based on the total weight of the isoprene monomer.
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