Sulfuric Acid → Acrylic acid methacrylic acid
Reaction equation
[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([OH:11])(=[O:10])[C:7]([CH3:9])=[CH2:8].N(C(C1NCCN=1)(C)C)=NC(C1NCCN=1)(C)C.S(=O)(=O)(O)O>O.C(O)(C)C>[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([OH:11])(=[O:10])[C:7]([CH3:9])=[CH2:8]Participants
Conditions
- Temperature
- 80 °C
Procedure
75.00 parts by mass of deionized water and 75.00 parts by mass of isopropanol were introduced into a 0.5-liter flask for synthesis, and the temperature was increased to 80° C. while the mixture was stirred in a nitrogen gas atmosphere. Thereafter, a mixture of 5.16 parts by mass of acrylic acid and 117.18 parts by mass of methacrylic acid, and a solution of 14.34 parts by mass of 2,2′-azobis[2-(2-imidazolin-2-yl)propane] and 11.24 parts by mass of concentrated sulfuric acid dissolved in 80.00 parts by mass of deionized water, were simultaneously poured into the flask over 60 minutes. The mixture was kept warm at 85° C. for 2 hours to complete the polymerization reaction, and then the resultant was cooled and taken out. Thus, an acrylic acid/methacrylic acid copolymer was obtained. The non-volatile component fraction was measured, and it was 40% by mass.
Workup
- additionwere simultaneously poured into the flask over 60 minutes
- temperatureThe mixture was kept warm at 85° C. for 2 hours
- customthe polymerization reaction
- temperaturethe resultant was cooled
Sources & evidence
- ORD record
- ord-921bb74002f2452b977d1f655e7ee850
- Source dataset
- uspto-grants-2016_03
- Patent number
- US09299573B2
Reaction notes
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