Ammonium → 5-Phenyl-2,4-pentadienoic acid
Reaction equation
C(S)CCCCCCCCCCC.C(Br)(Br)(Br)Br.[CH2:19]=[CH:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.[C:27]([O:31]CCCC)(=[O:30])[CH:28]=[CH2:29].C(O)(=O)C=C.[NH4+]>O>[CH:19]([CH:29]=[CH:28][C:27]([OH:31])=[O:30])=[CH:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1Participants
8
Reactant 6
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 72 °C
Procedure
5 parts of dodecanethiol and 3 parts of carbon tetrabromide are added to monomer components consisting of 400 parts of styrene, 90 parts of n-butyl acrylate, and 3 parts of acrylic acid, to give a liquid monomer mixture. Thirty parts of the liquid mixture is poured into 700 parts of ion-exchange water and dispersed well, and after addition of an aqueous ammonium persulfide solution, the mixture is heated to a liquid temperature of 72° C. The remaining 463 parts of the liquid monomer mixture is then added dropwise to the mixture above over 5 hours, to give a dispersion of the styrene-acrylic acid copolymer resin.
Workup
- customto give a liquid monomer mixture
- additiondispersed well
- additionThe remaining 463 parts of the liquid monomer mixture is then added dropwise to the mixture above over 5 hours
Sources & evidence
- ORD record
- ord-5ba2cc574e724e1eabc8dd1b59f2bd07
- Source dataset
- uspto-grants-2010_10
- Patent number
- US07811736B2
Reaction notes
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