1-Butene → 1-Butene 4-methyl-1-pentene

Participants

Reaction Steps

On the other hand, in an egg-plant type flask with an inner volume of 25 ml replaced with argon, 5 ml of purified toluene and 1.2 mg of dichloro{2,2′-thiobis[4-methyl-6-(tert-butyl)phenolato} titanium were mixed by stirring, and then charged into the autoclave. The molar ratio of [Al]/[Ti] of the catalyst solution prepared then was 8,000. After the catalyst solution was mixed by stirring at room temperature for 10 minutes, 25.5 ml of 4-methyl-1-pentene and 16.8 g of 1-butene were charged and the polymerization was carried out at 40° C. for 1 hour. Then, the polymerization was terminated by adding methanol. Further, the mixture was charged into about 10-fold acidic methanol, and the precipitated polymer was filtered to be dried at 80° C. for about 2 hours. As a result, 0.8 g of poly(1-butene/4-methyl-1-pentene) copolymer was obtained. Mw of the polymer obtained was 793×104, Mn was 342×104, Mw/Mn was 2.3, and no crystal fusion peak by DSC was detected. The glass transition temperature (Tg) was observed at 17° C. and the polymer was amorphous.

Provenance & Evidence