FIELD: chemistry.
SUBSTANCE: invention concerns synthetic rubber production, particularly, of butadiene-styrene rubber, by solution polymerisation. Invention claims method of obtaining butadiene-styrene rubbers by butadiene copolymerisation with styrene in several reactors in hydrocarbon dissolvent medium in the presence of lithium-organic catalyst, e.g., lithium-butyl and modifying additive, involving blend preparation, catalyst deactivation and polymer stabilisation, rubber degassing and drying, where sodium or potassium alkyloxyethylenoxide is used as modifying additive in copolymerization process, and 1,2-link content in diene part of copolymer is adjusted by changing mol ratio of sodium or potassium to lithium within (0.2-1.5):1.0 range.
EFFECT: rubber with higher 1,2-link content in diene part of copolymer, wide Mooney viscosity interval, enhanced controllability and reproducibility of process.
5 cl, 2 tbl, 1 dwg, 14 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR PREPARING BUTADIENE-STYRENE RUBBER | 1994 |
|
RU2082723C1 |
| BUTADIENE POLYMERS' AND BUTADIENE/STYRENE COPOLYMERS' PRODUCTION PROCESS | 2003 |
|
RU2228339C1 |
| METHOD OF PRODUCING MODIFYING ADDITIVE OF ORGANOLITHIUM COMPOUND AND METHOD OF PRODUCING POLYBUTADIENE AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2008 |
|
RU2382792C2 |
| METHOD OF PRODUCING BUTADIENE POLYMERS AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2008 |
|
RU2377258C2 |
| METHOD OF PRODUCING BUTADIENE-STYRENE STATISTICAL POLYMERS | 2010 |
|
RU2434025C1 |
| BUTADIENE-STYRENE RUBBER MANUFACTURING PROCESS | 2005 |
|
RU2285701C1 |
| METHOD FOR OBTAINING BUTADIENE POLYMERS AND BUTADIENE COPOLYMERS WITH STYRENE | 2007 |
|
RU2339651C9 |
| METHOD OF BUTADIENE-STYRENE RUBBER PRODUCING | 1995 |
|
RU2101301C1 |
| METHOD OF OBTAINING FUNCTIONALISED POLYMERS OF BUTADIENE AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2013 |
|
RU2538591C1 |
| METHOD FOR OBTAINING BUTADIENE-STYRENE COPOLYMERS | 2018 |
|
RU2671556C1 |
