FIELD: chemistry.
SUBSTANCE: butadiene undergoes anionic polymerisation (or block copolymerisation with styrene) in a low-boiling non-polar solvent in the presence of organolithium compounds. At the end of polymerisation, the non-polar solvent is replaced with a vinyl aromatic monomer periodically, and the new solution is stored in containers depending on the type of the obtained polybutadiene (and/or block copolymer thereof with styrene). The solution of polybutadiene (and/or block copolymer thereof with styrene) with the required set of properties is then fed into an apparatus for producing shock-resistant vinyl aromatic (co)polymers.
EFFECT: methods overcome shortcomings of existing technologies, low concentration of polybutadiene in the end products, incapability of controlling physical and chemical parameters of the polybutadiene solution obtained from anionic polymerisation of butadiene.
3 cl, 1 dwg, 4 tbl, 12 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SYNTHESIS OF SHOCK RESISTANT VINYLAROMATIC (CO) | 2005 |
|
RU2401282C2 |
| RUBBER-REINFORCED VINYL AROMATIC (CO) | 2009 |
|
RU2506278C2 |
| METHOD FOR SYNTHESIS OF FUNCTIONALISED POLY(1,3-ALKADIENES) AND USE THEREOF IN PRODUCING IMPACT-RESISTANT VINYL AROMATIC POLYMERS | 2009 |
|
RU2493174C2 |
| METHOD OF PREPARING VINYL AROMATIC RUBBER-REINFORCED POLYMERS | 1997 |
|
RU2142475C1 |
| METHOD FOR PRODUCING VINYLAROMATIC (CO) | 2005 |
|
RU2352591C2 |
| METHOD OF PREPARING RUBBER-REINFORCED VINYL AROMATIC COPOLYMERS, AND VINYL AROMATIC COPOLYMERS | 1996 |
|
RU2161164C2 |
| RUBBER-REINFORCED VINYLARENE POLYMERS | 2004 |
|
RU2346964C2 |
| ACRYLONITRILE/BUTADIENE/STYRENE RESIN AND METHOD FOR PRODUCTION THEREOF | 1997 |
|
RU2164232C2 |
| 0 |
|
SU272197A1 | |
| METHOD OF PRODUCING BLOCK COPOLYMERS | 2016 |
|
RU2634901C1 |
