Methacrylic Acid → HCID 18373619, compound

HRID 894644Notes

Reaction equation

HRID 894644 reaction equation
[C:1]([O:6][CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:14]([O:19][CH3:20])(=[O:18])[C:15]([CH3:17])=[CH2:16].[C:21]([OH:26])(=[O:25])[C:22]([CH3:24])=[CH2:23].C(S)CCCCCCCCCCC>C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1.O>[C:1]([O:6][CH2:7][C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)(=[O:5])[C:2]([CH3:4])=[CH2:3].[C:14]([O:19][CH3:20])(=[O:18])[C:15]([CH3:17])=[CH2:16].[C:21]([OH:26])(=[O:25])[C:22]([CH3:24])=[CH2:23]

Participants

7

Reactant 4

HCID 4093Methacrylic AcidHCID 6658Methyl MethacrylateHCID 81951-DodecanethiolHCID 17236Benzyl methacrylate

Product 1

HCID 18373619HCID 18373619, compoundYield 496.8%

Reagents, catalysts & solvents 2

HCID 7187Benzoyl PeroxideCatalystHCID 962WaterSolvent

Procedure

A reactor equipped with a nitrogen inlet and a stirrer was charged under a nitrogen atmosphere with 535 g of water, 9.2 g of benzyl methacrylate, 15 g of methyl methacrylate, 12.9 g of methacrylic acid (the mole ratio of the three monomers charged being 6:2:2), 1 g of benzoyl peroxide, 0.3 ml of n-dodecyl mercaptan, and 2.4 g of polyethylene oxide (Polyox-WSR-N-80, molecular weight 2×105, a product of Union Carbide Corporation, U.S.A.), and the monomers were polymerized for 5.5 hours at a stirring speed of 700 to 800 rpm. The resulting product was separated by filtration, washed with water and dried to yield 94 g (88% yield) of benzyl methacrylate-methyl methacrylate-methacrylic acid copolymer as white beads. [η]MC25°C. =0.231. Acid value 40.8. Content of methoxy=3.23%. From the acid value and the methoxy content, the ratio of the constituent monomers in the copolymer II was determined to be: benzyl methacrylate: methyl methacrylate: methacrylic acid of 7.3: 1.6: 1.1.

Workup

  1. customA reactor equipped with a nitrogen inlet and a stirrer
  2. additioncharged
  3. custom), and the monomers were polymerized for 5.5 hours at a stirring speed of 700 to 800 rpm
  4. customThe resulting product was separated by filtration
  5. washwashed with water
  6. customdried

Sources & evidence

ORD record
ord-dcf19bf55ed64a61b0eaba01e92616f2
Source dataset
uspto-grants-1981_08
Patent number
US04284707

Reaction notes

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