Styrene → Benzene, ethenyl-, polymer with 1,3-butadiene
Reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.C=CC=C>>[CH2:1]=[CH:2][CH:3]=[CH2:4].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1Participants
3
Procedure
The hydrogeneated styrene triblock copolymer elastomers SEBS and SEPS can be prepared by a general anionic living polymerization method. One example of the anionic living polymerization method is to produce a triblock copolymer by successive polymerization of styrene, butadiene and styrene and then hydrogenate the triblock copolymer. Another example of the anionic living polymerization method is to produce a styrene-butadiene diblock copolymer, treat the diblock copolymer with a coupling agent to form a triblock copolymer, and then, hydrogenate the triblock copolymer. The hydrogeneated styrene triblock copolymer elastomer SEPS can be prepared by the same method as above using isoprene instead of butadiene.
Workup
- customto produce a triblock copolymer
Sources & evidence
- ORD record
- ord-d49f44190ffc496d81bab82c21630c06
- Source dataset
- uspto-grants-2012_04
- Patent number
- US08158706B2
Reaction notes
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