Toluene → 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([Al](CC(C)C)CC(C)C)C(C)C.[C:22]1(C)[CH:27]=CC=[CH:24][CH:23]=1.Cl(O)(=O)=O.C(O)C>C=CC=C>[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH2:27]=[CH:22][CH:23]=[CH2:24]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a polymerization reactor under high purity nitrogen atmosphere, 50 ml of purified styrene and 50 ml of 1,3-butadiene were introduced and reaction temperature was controlled to 25° C. Then, 5 ml of triisobutylaluminum (1,0 M toluene solution) and 5 ml of methylaluminoxane (2.1 M toluene solution, Akzo Company product) were sequentially introduced. 5 ml (50 μmol of Ti) of toluene solution in which the metallocene catalyst is dissolved was added while vigorously agitating. After agitating for 2 hours, 10 wt % of chloric acid-ethanol solution was added to terminate a reaction the reactant was filtered, washed with ethanol and dried in a vacuum oven of 50° C. to obtain a final styrene/1,3-butadiene copolymer. Polymerization results and physical properties of polymers for each catalyst are shown in Table 5.
Workup
- customreaction temperature
- customwas controlled to 25° C
- additionwas added
- stirringAfter agitating for 2 hours
- customto terminate
- customa reaction the reactant
- filtrationwas filtered
- washwashed with ethanol
- customdried in a vacuum oven of 50° C.
Sources & evidence
- ORD record
- ord-2eeb79b02aa347b1aed9261405322901
- Source dataset
- uspto-grants-2009_09
- Patent number
- US07592401B2
Reaction notes
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