Reaction #2146715

Reaction equation

diethyl carbonate

2,2′-azobis(isobutyronitrile)

methyl methacrylate

3,4-epoxycyclohexylmethyl acrylate

ethylene carbonate

2,2′-azobis(isobutyronitrile)

→

ethylene carbonate diethyl carbonate

Conditions

Workup

1. 1
   Otherequipped with a refluxing condenser
2. 2
   workup.ADDITIONmixed for 30 minutes while nitrogen gas
3. 3
   workup.ADDITIONwas introduced into the flask
4. 4
   Otherradical polymerization
5. 5
   OtherThe resulting reaction mixture
6. 6
   Temperaturewas cooled to 40° C
7. 7
   Temperaturethe resulting mixture was again heated to 70° C.
8. 8
   Otherpolymerization at the temperature for another 8 hours
9. 9
   OtherThe resulting reaction mixture
10. 10
    Temperaturewas cooled to 40° C.

Procedure

60.0 g of methyl methacrylate, 20.0 g of 3,4-epoxycyclohexylmethyl acrylate, 226.6 g of ethylene carbonate and 0.24 g of 2,2′-azobis(isobutyronitrile) were placed in a 500 mL capacity three-necked flask equipped with a refluxing condenser and stirred and mixed for 30 minutes while nitrogen gas was introduced into the flask. The mixture was heated to 70° C. and radical polymerization was carried out at the temperature over 8 hours. The resulting reaction mixture was cooled to 40° C. 226.6 g of diethyl carbonate and 0.24 g of 2,2′-azobis(isobutyronitrile) were added to the reaction mixture and the resulting mixture was again heated to 70° C. for carrying out radical polymerization at the temperature for another 8 hours. The resulting reaction mixture was cooled to 40° C. thereby to obtain a solution of a polymer in a concentration of 15% by weight in a solvent of ethylene carbonate/diethyl carbonate mixture.

Source