Réaction #56350

Équation de réaction

ethyl acrylate

boron trifluoride

allyl acrylate

azobis(isobutyronitrile)

ethylene

ethylene

maleic anhydride

→

Ethylene/Ethyl Acrylate Allyl Acrylate Maleic Anhydride

Solvants

methylene chloride

acetone

Conditions de réaction

Traitement

1. 1
   workup.ADDITIONwas charged under nitrogen with 4000 ml
2. 2
   AutreIt was then sealed
3. 3
   AutreThe subsequent copolymerization at 25° C.
4. 4
   Autreabout two hours
5. 5
   AutreThe reaction was quenched by addition of one liter of diethyl ether
6. 6
   AutreVolatiles were removed by steam-stripping in a well-ventilated hood
7. 7
   AutreThe terpolymer thereby obtained
8. 8
   Autreprecipitated in water in a blender
9. 9
   Autreoven-dried

Mode opératoire

A 7.57-liter stirred autoclave was charged under nitrogen with 4000 ml. of methylene chloride, 400 grams of ethyl acrylate, 20 grams of maleic anhydride, 1.2 grams of allyl acrylate, and 1.0 gram of azobis(isobutyronitrile). It was then sealed, charged with 300 grams of boron trifluoride, and pressured to 21 kg./sq. cm. with ethylene. The subsequent copolymerization at 25° C. was continued until pressure measurement indicated that ethylene uptake had ceased (about two hours later). The reaction was quenched by addition of one liter of diethyl ether. Volatiles were removed by steam-stripping in a well-ventilated hood. The terpolymer thereby obtained was dissolved in acetone, precipitated in water in a blender, and oven-dried. Yield: 415 grams.

Source