反应详情

Ethyl maleimide (1 mol.), t-butyl bicyclo[2,2,2]oct-5-ene-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) was added thereto, and the resulting solution was reacted at a temperature between 60° C. and 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(ethyl maleimide/t-butyl bicyclo[2,2,2]oct-5-ene-2-carboxylate/3-hydroxypropyl 5-norbornene-2-carboxylate) polymer was obtained at a yield of about 83%. NMR spectra of the polymer is illustrated in FIG. 4.

1. customthe resulting solution was reacted at a temperature between 60° C. and 70° C. in a nitrogen atmosphere for 10 hours
2. customAfter a high molecular weight was achieved by the reaction
3. customthe resultant product was precipitated in an ethyl ether or hexane solvent
4. customThe gathered precipitate was dried
5. customwas obtained at a yield of about 83%