1-(2,6-diethylphenyl)pyrrole-2,5-dione

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a one-liter autoclave were charged 400 ml of toluene as a polymerization solvent, 0.001 moles of perbutyl neodecanoate as a polymerization initiator, 0.42 moles of N-(2,6-diethylphenyl)maleimide, and 4.05 moles of isobutene, and the mixture was subjected to polymerization reaction under a polymerization condition at a polymerization temperature of 60° C. for a polymerization time of 5 hours, to obtain N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer. The thus obtained N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer had a weight average molecular weight (Mw) (as reduced into standard polystyrene) of 170,000 and an Mw/Mn of 2.6. the mixture was subjected to polymerization reaction under a polymerization condition at a polymerization temperature of 60° C. for a polymerization time of 5 hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a 1-liter autoclave were introduced 400 mL of toluene as a polymerization solvent, 0.001 mol of perbutyl neodecanoate as a polymerization initiator, 0.42 mol of N-(2,6-diethylphenyl)maleimide, and 4.05 mol, of isobutene. A polymerization reaction was conducted at a polymerization temperature of 60° C. for a polymerization time of 5 hours to obtain an N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer. The N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer obtained had a number-average molecular weight of 65,000. A polymerization reaction was conducted at a polymerization temperature of 60° C. for a polymerization time of 5 hours

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a one-liter autoclave were charged 400 ml of toluene as a polymerization solvent, 0.001 moles of perbutyl neodecanoate as a polymerization initiator, 0.42 moles of N-(2,6-diethylphenyl)maleimide, and 4.05 moles of isobutene, and the mixture was subjected to polymerization reaction under a polymerization condition at a polymerization temperature of 60° C. for a polymerization time of 5 hours, to obtain N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer. The thus obtained N-(2,6-diethylphenyl)maleimide-isobutene alternating copolymer had a weight average molecular weight (Mw) (as reduced into standard polystyrene) of 170,000 and an Mw/Mn of 2.6. the mixture was subjected to polymerization reaction under a polymerization condition at a polymerization temperature of 60° C. for a polymerization time of 5 hours