反応 #2063071

反応方程式

2,2′-azobisisobutyronitrile

Propyl maleimide

t-butyl 5-norbornene-2-carboxylate

3-hydroxypropyl 5-norbornene-2-carboxylate

→

propyl maleimide t-butyl 5-norbornene-2-carboxylate 3-hydroxypropyl 5-norbornene-2-carboxylate

収率 82.0%

溶媒

tetrahydrofuran

反応条件

後処理

1. 1
   その他After a high molecular weight was achieved by the reaction
2. 2
   その他the resultant product was precipitated in an ethyl ether or hexane solvent
3. 3
   その他The gathered precipitate was dried
4. 4
   その他was obtained at a yield of about 82%

実験手順

Propyl maleimide (1 mol.), t-butyl 5-norbornene-2-carboxylate (0.5 mol.), and 3-hydroxypropyl 5-norbornene-2-carboxylate (0.5 mol.) were dissolved in 50 g to 300 g of tetrahydrofuran (THF), 2 g to 15 g of 2,2′-azobisisobutyronitrile (AIBN) were added thereto, then the resultant solution was reacted at a temperature of 60° C. to 70° C. in a nitrogen atmosphere for 10 hours. After a high molecular weight was achieved by the reaction, the resultant product was precipitated in an ethyl ether or hexane solvent. The gathered precipitate was dried, and the desired poly(propyl maleimide/t-butyl 5-norbornene-2-carboxylate/3-hydroxypropyl 5-norbornene-2-carboxylate) polymer was obtained at a yield of about 82%. NMR spectra of the polymer is illustrated in FIG. 3.

出典