FIELD: polymers.
SUBSTANCE: invention relates to a method for producing synthetic polymers used in the manufacture of rubber technical products. In particular, the present invention relates to methods for producing a modified polydiene by polymerizing a conjugated diene in an organic solvent medium using a catalyst system including a lanthanide, an organoaluminum compound, a conjugated diene and a halogen-comprising component, and subsequent post-polymerization modification of at least one phosphorus nitrogen compound with a chemical structure based on on repeating (-P=N-)n units, where n is an integer from 3 to 24, used in an amount of at least 0.5 mol per 1 mol of lanthanide.
EFFECT: producing a modified stereoregular polydiene with a narrow molecular weight distribution, good processability as part of rubber compounds, low rolling resistance, and low abrasion values.
67 cl, 4 tbl, 33 ex
| Title | Year | Author | Number |
|---|---|---|---|
| BRANCHED POLYDIENES AND RUBBER MIXTURES BASED ON THEM | 2019 |
|
RU2809256C1 |
| METHOD FOR PRODUCING BRANCHED POLYDIENE | 2019 |
|
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| METHOD FOR OBTAINING MODIFIED POLYDIENES | 2020 |
|
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| METHOD OF PRODUCING A COMPOSITION FOR MODIFYING 1,4-CIS-POLYDIENE, A METHOD OF PRODUCING MODIFIED 1,4-CIS-POLYDIENE | 2018 |
|
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|
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| METHOD OF PRODUCING MODIFIED POLYDIENES, MODIFIED POLYDIENES OBTAINED USING SAID METHOD, AND RUBBER MIXTURES BASED ON OBTAINED POLYDIENES | 2016 |
|
RU2727714C1 |
| METHOD FOR PRODUCING 1,4-CIS-POLYBUTADIENE | 2015 |
|
RU2626967C2 |
| METHOD FOR PREPARING A SYSTEM FOR MODIFICATION OF POLYDIENES, MODIFIED POLYDIENES, RUBBER MIXTURES BASED ON MODIFIED POLYDIENES | 2017 |
|
RU2675540C1 |
| POLYMER COMPOSITION AND METHOD FOR ITS PREPARATION | 2018 |
|
RU2779762C1 |
| POLYMERS FUNCTIONALISED WITH OXIME COMPOUNDS CONTAINING ACYL GROUP | 2011 |
|
RU2595695C2 |
