Reaction equation
[C:1](OC)(=O)[CH:2]=C.[C:7]([O:14][CH2:15][CH3:16])(=[O:13])/[CH:8]=[CH:9]\[C:10]([O-:12])=[O:11].C=C.C(OOC(C)(C)C)(=O)C(C)(C)C>C1C=CC=CC=1>[CH2:1]=[CH2:2].[C:7]([O:14][CH3:15])(=[O:13])[CH:8]=[CH2:9].[C:7]([O:14][CH2:15][CH3:16])(=[O:13])/[CH:8]=[CH:9]\[C:10]([O-:12])=[O:11]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of methyl acrylate, monoethyl maleate, and benzene (weight ratio: 68.28/2.46/29.26) was pressured to about 422 kg/sq cm; ethylene was separately pressured to about 422 kg/sq cm. Separate streams of this mixture (0.91 kg/hr) and ethylene (6.35 kg/hr) were joined and pressured to 1900 kg/sq cm. The resulting feed stream then entered the autoclave. Simultaneously, a catalyst solution, made by adding 50 ml of tert-butyl peroxypivalate to 4.5 kg of benzene was introduced at the rate of 0.00204 kg/hr to keep the temperature at 170° C. The effluent from the autoclave passed through a let-down valve to a chamber at atmospheric pressure where most of the residual monomers and solvent flashed off. The ethylene/methyl acrylate/monoethyl maleate terpolymer thus isolated was freed from the small amount of residual volatiles by heating for 16 hours at 80° C. in a nitrogen stream. Acid-base titration indicated that 0.25 meq. of acid groups was present per gram of terpolymer, corresponding to 3.6 weight % monoethyl maleate in the copolymer.
Workup
- additionwas introduced at the rate of 0.00204 kg/hr
- customat 170° C
- customThe effluent from the autoclave passed through a let-down valve to a chamber at atmospheric pressure where most of the residual monomers and solvent
Sources & evidence
- ORD record
- ord-f3f2da614fdf41aab11d11d5baefda49
- Source dataset
- uspto-grants-1980_07
- Patent number
- USRE030322
Linked notes
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