Methacrylic Acid → 2-Methylprop-2-enoic acid--ethyl prop-2-enoate (1/1)

HRID 593238

반응식

HRID 593238 반응식
[CH2:1]([O:3][C:4](=[O:7])[CH:5]=[CH2:6])[CH3:2].[C:8]([OH:13])(=[O:12])[C:9]([CH3:11])=[CH2:10].C(OCCCCOC(=O)C=C)(=O)C=C.C(OS([O-])(=O)=O)CCCCCCCCCCC.[Na+].OP([O-])([O-])=O.[K+].[K+].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH2:1]([O:3][C:4](=[O:7])[CH:5]=[CH2:6])[CH3:2].[C:8]([OH:13])(=[O:12])[C:9]([CH3:11])=[CH2:10]

참가 물질

8

반응물 6

HCID 4093Methacrylic AcidHCID 8821Ethyl AcrylateHCID 24450Potassium Phosphate, DibasicHCID 62648Ammonium PersulfateHCID 70613Butanediol diacrylateHCID 3423265Sodium Lauryl Sulfate

생성물 1

HCID 1076652-Methylprop-2-enoic acid--ethyl prop-2-enoate (1/1)

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Poly(EA/MAA BDDA) microgel was prepared using seed-feed emulsion polymerisation (Macromolecules, 1994, 27, 6642). A monomer mixture containing Ethylacrylate (EA) (Aldrich, 143.5 g), Methacrylic acid (MAA) (Aldrich, 72.0 g) and 1,4-butanediol diacrylate (BDDA) (Aldrich, 2.2 g) was prepared and 12.5% of the mixture added to a pre-purged, stirred, solution of sodium dodecylsulphate (BDH, 1.75 g in 500 g of water), which had been heated to 80° C. The monomers were passed over an alumina column prior to use. K2HPO4 (3 g of 7% solution in water) and ammonium persulphate (2.95 g of 5% solution in water) were immediately added whilst maintaining a nitrogen atmosphere. After appearance of a slight blue turbidity, the remaining monomer mixture was added at a continuous rate over a 90 min period. Additional initiator (3.3 g of 5% solution in water) was added and the temperature maintained for a further 2 h. The microgel was extensively dialysed against Milli-Q quality water. The average particle size of the particles in the collapsed state was about 65 nm. The swollen state diameter was about 220 nm at pH=7.4.

후처리

  1. customseed-feed emulsion polymerisation (Macromolecules, 1994, 27, 6642)
  2. customwas prepared
  3. temperaturewhilst maintaining a nitrogen atmosphere
  4. additionAfter appearance of a slight blue turbidity, the remaining monomer mixture was added at a continuous rate over a 90 min period
  5. temperaturethe temperature maintained for a further 2 h
  6. customThe microgel was extensively dialysed against Milli-Q quality water

출처 및 근거

ORD 기록
ord-e01db9f9af8443698b6f5b12f68d89bf
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09242028B2

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