反应详情

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.

1. additionmixed while boron trifluoride phenol complex
2. additionwas slowly added
3. temperaturethe material was then cooled under dry ice
4. additionNext, alkali was added to inactivate and
5. customremove the catalyst
6. concentrationconcentrated
7. customto remove the solvent and unreacted monomer