Reacción #1070942

Ecuación de reacción

maleic anhydride

2-hydroxyethyl 5-norbornene-2-carboxylate

t-butyl 5-norbornene-2-carboxylate

5-norbornene 2-carboxylic acid

azobisisobutyronitrile

→

2-hydroxyethyl 5-norbornene-2-carboxylate t-butyl 5-norbornene-2-carboxylate 5-norbornene 2-carboxylic acid maleic anhydride

Disolventes

tetrahydrofuran

toluene

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroA radical reaction
2. 2
   OtroThe resin thus produced by this polymerization
3. 3
   Otrois precipitated in ethyl ether
4. 4
   Secadohexane and dried

Procedimiento

1 mole of maleic anhydride, 0.05-0.8 moles of 2-hydroxyethyl 5-norbornene-2-carboxylate, 0.5-0.95 moles of t-butyl 5-norbornene-2-carboxylate and 0.01 to 0.2 moles of 5-norbornene 2-carboxylic acid are dissolved in tetrahydrofuran or toluene. A radical reaction is executed at a temperature of about 60-70° C. for 4-24 hours under a nitrogen or argon atmosphere in the presence of 0.5-10 g of azobisisobutyronitrile (AIBN), as an initiator. The resin thus produced by this polymerization is precipitated in ethyl ether or hexane and dried to yield poly [2-hydroxyethyl 5-norbornene-2-carboxylate/t-butyl 5-norbornene-2-carboxylate/5-norbornene 2-carboxylic acid/maleic anhydride] resin of the following Formula X.

Fuente