反应详情

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.

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