FIELD: technological processes.
SUBSTANCE: invention relates to processes for preparation of isoprene polymerization catalyst and can find application in the production of general-purpose rubbers in the synthetic rubber industry. Disclosed is a method of producing a catalyst for polymerisation of isoprene by reacting rare earth elements (REE) chlorides with monohydric alcohol and a solvent, followed by mixing with a conjugated diene and an organoaluminium compound, method consists in that monoatomic alcohol is 2-ethylhexyl alcohol in molar ratio of rare-earth elements:2-ethylhexyl alcohol = 1:1.8–3.0.
EFFECT: disclosed method of synthesis enables to obtain a catalyst with high activity (polyisoprene yield of 90–96 %) while reducing synthesis time thereof and results in obtaining a polymer with an improved fatigue strength index during deformation of multiple stretching.
1 cl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING BUTADIENE POLYMERISATION CATALYST | 2018 |
|
RU2684282C1 |
| METHOD OF PRODUCING CATALYST FOR COPOLYMERISATION OF BUTADIENE WITH ISOPRENE | 2018 |
|
RU2684279C1 |
| METHOD FOR OBTAINING A CATALYST FOR ISOPRENE POLYMERIZATION | 2017 |
|
RU2660414C1 |
| METHOD OF PRODUCING POLYMERS AND COPOLYMERS OF CONJUGATED DIENES (VERSIONS) | 2009 |
|
RU2422468C1 |
| METHOD OF PRODUCING ALCOHOL SOLVATES OF CHLORIDES OF RARE-EARTH ELEMENTS | 2008 |
|
RU2438981C2 |
| METHOD OF PRODUCTION OF POLYMERIZATION AND COPOLYMERIZATION CATALYST OF UNSATURATED HYDROCARBONS | 1998 |
|
RU2141382C1 |
| METHOD FOR MAKING ISOPRENE POLYMERISATION CATALYST | 2008 |
|
RU2354450C1 |
| ISOPRENE RUBBER AND METHOD OF PRODUCING SAID RUBBER | 2008 |
|
RU2374271C1 |
| METHOD OF OBTAINING CATALYTIC COMPLEX AND CIS-1,4-POLYIZOPREN OBTAINED WITH USING THIS CATALYTIC COMPLEX | 2017 |
|
RU2668977C1 |
| METHOD OF OBTAINING CATALYST OF BUTADIENE POLYMERISATION AND CO-POLYMERISATION OF BUTADIENE WITH ISOPRENE | 2007 |
|
RU2345092C1 |
