反应详情

500 ml dry benzene cosolvent, 74 ml 5-methyl-2-norbornene, 12 ml of the 1-hexene solution, and 6 ml of the diethylaluminum iodide solution were charged to a dry, nitrogen-purged quart bottle. 7.5 ml of the MoCl5 solution was charged last, and the bottle was shaken. After 80 minutes the reaction was shortstopped using a mixture of 1.5 ml ethanolamine, 10 ml of antioxidant solution (10 grams of 2,2',2"-tris[3(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]ethyl isocyanurate in 100 ml benzene), and 1.5 ml Solution A. The polymer cement was coagulated using excess Solution A in a Waring blender. A solid weighing 66.0 grams was recovered after being filtered and vacuum dried at 60° C. It was found to be a ring-opened 5-methyl-2-norbornene/1-hexene copolymer having a DSV of about 1.90.

1. custompurged quart bottle
2. addition7.5 ml of the MoCl5 solution was charged last
3. additiona mixture of 1.5 ml ethanolamine, 10 ml of antioxidant solution (10 grams of 2,2',2"-tris[3(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxy]ethyl isocyanurate in 100 ml benzene), and 1.5 ml Solution A
4. customwas recovered
5. filtrationafter being filtered
6. customvacuum dried at 60° C