Toluene → Styrene p-methylstyrene

HRID 734953Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 734953
[CH3:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1.C([Al](CC(C)C)CC(C)C)C(C)C.C1(C)C=CC=CC=1.Cl(O)(=O)=O.C(O)C>C=CC1C=CC=CC=1>[CH2:7]=[CH:6][C:5]1[CH:8]=[CH:9][CH:2]=[CH:3][CH:4]=1.[CH3:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1

Komponenten

6

Edukt 4

HCID 1140TolueneHCID 121611-Ethenyl-4-methylbenzeneHCID 16682931TriisobutylaluminumHCID 21282719Chloric acid ethanol

Produkt 1

HCID 19702659Styrene p-methylstyrene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7501StyreneLösungsmittel

Versuchsvorschrift

To a polymerization reactor under high purity nitrogen atmosphere, 100 ml of purified styrene and 5 ml of p-methylstyrene were introduced and temperature was elevated to 50° C. 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 1 hour, 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. overnight to obtain a final styrene/p-methylstyrene copolymer. Polymerization results and physical properties of polymers for each catalyst are shown in Table 4.

Aufarbeitung

  1. customwas elevated to 50° C
  2. additionwas added
  3. stirringAfter agitating for 1 hour
  4. customto terminate
  5. customa reaction
  6. filtrationthe reactant was filtered
  7. washwashed with ethanol
  8. customdried in a vacuum oven of 50° C. overnight

Quellen und Nachweise

ORD-Eintrag
ord-78a73c3072f447cda2dba0cf2ac96630
Quelldatensatz
uspto-grants-2009_09
Patentnummer
US07592401B2

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