Reaktion #78025

Reaktionsgleichung

α-methyl styrene

isopropenyltoluene

toluene

→

α-methylstyrene isopropenyltoluene

Lösungsmittel

acetone

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONmixed while boron trifluoride phenol complex
2. 2
   workup.ADDITIONwas slowly added
3. 3
   Temperaturthe material was then cooled under dry ice
4. 4
   workup.ADDITIONNext, alkali was added to inactivate and
5. 5
   Sonstigeremove the catalyst
6. 6
   Einengenconcentrated
7. 7
   Sonstigeto remove the solvent and unreacted monomer

Vorschrift

250 g α-methyl styrene (99.8% purity), 250 g isopropenyltoluene, and 500 g toluene were introduced into a three-mouthed flask, and mixed while boron trifluoride phenol complex was slowly added, and the material was then cooled under dry ice and acetone solvent and reacted for 3 hr at 20° C. Next, alkali was added to inactivate and remove the catalyst, and concentrated to remove the solvent and unreacted monomer, and α-methylstyrene-isopropenyltoluene copolymer was obtained as a residue. This polymer was designated Polymer B3, and its physical properties are listed in Table 2.

Quelle