反应详情

50 ml dry toluene cosolvent, 7 ml 5-ethyl-2-norbornene, 0.8 ml 1-hexene solution, and 0.6 ml diethylaluminum iodide solution were charged to a dry, nitrogen-purged 7 oz. bottle. 0.75 ml of the MoCl5 solution was charged last, and the bottle was shaken. After 1 hour the reaction was shortstopped using a mixture of 0.8 ml ethanolamine, 3 ml Solution A and 25 ml toluene. 2 ml of an antioxidant solution was added (0.1 g/ml of 2,2'-methylenebis-[4-methyl-6-t-butylphenol] in toluene). The polymer cement was coagulated using excess Solution A in a Waring blender. A solid weighing 5.9 grams was recovered after being filtered and vacuum dried at 60° C. It was found to be a ring-opened 5-ethyl-2-norbornene/1-hexene copolymer having a DSV of about 1.53.

1. custompurged 7 oz. bottle
2. addition0.75 ml of the MoCl5 solution was charged last
3. additiona mixture of 0.8 ml ethanolamine, 3 ml Solution A and 25 ml toluene
4. addition2 ml of an antioxidant solution was added (0.1 g/ml of 2,2'-methylenebis-[4-methyl-6-t-butylphenol] in toluene)
5. customwas recovered
6. filtrationafter being filtered
7. customvacuum dried at 60° C