Methacrylic Acid → 2-Propenoic acid, butyl ester, polymer with 2-ethylhexyl 2-propenoate

HRID 462806Notes

Reaction equation

HRID 462806 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[C:9]([O:14][CH2:15][CH2:16][CH2:17][CH3:18])(=[O:13])[C:10](C)=[CH2:11].C(OCC)(=O)C(C)=C.C(O)(=O)C(C)=C>C1(C)C=CC=CC=1>[CH3:5][CH2:6][CH2:7][CH2:8][CH:3]([CH2:4][O:14][C:9]([CH:10]=[CH2:11])=[O:13])[CH2:2][CH3:1].[CH3:18][CH2:17][CH2:16][CH2:15][O:14][C:9]([CH:10]=[CH2:11])=[O:13]

Participants

6

Reactant 4

HCID 4093Methacrylic AcidHCID 7343Ethyl MethacrylateHCID 7354Butyl MethacrylateHCID 7501Styrene

Product 1

HCID 1685972-Propenoic acid, butyl ester, polymer with 2-ethylhexyl 2-propenoate

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent3×

Conditions

Temperature
110 °C

Procedure

An acrylic copolymer resin was prepared by feeding 150 parts of toluene into a 500-ml 4-necked flask equipped with a cooling tube, stirrer, and thermometer, heating it to 110° C., adding styrene 20 parts, n-butyl methacrylate 60 parts, ethyl methacrylate 120 parts, methacrylic acid 14 parts, azoisobutyronitrile 5 parts and toluene 70 parts spending 2 hours under an inert gas atmosphere, and heating for further 6 hours. The resulting toluene solution of copolymer was found to have 50.5% of nonvolatile matter and a polymer acid value of 18.

Workup

  1. customequipped with a cooling tube, stirrer
  2. temperatureheating for further 6 hours

Sources & evidence

ORD record
ord-857d26fa16d844279ad74f97e21ea440
Source dataset
uspto-grants-1985_05
Patent number
US04517271

Reaction notes

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