Реакция #1482015

Уравнение реакции

styrene

butyl acrylate

β-carboxyethyl acrylate

decanediol diacrylate

dodecylthiol

dodecylthiol

ammonium persulfate

→

styrene BA β-CEA

Растворители

water

water

water

Условия реакции

Обработка

1. 1
   ДругоеFor comparison, a poly(styrene/BA/β-CEA) polymer was prepared
2. 2
   Другоеwas prepared
3. 3
   Другоеto form a monomer latex suspension
4. 4
   workup.ADDITIONThe monomer latex suspension is then added dropwise over the course of 5 hours into the first aqueous solution
5. 5
   workup.ADDITIONwas added to the monomer latex suspension
6. 6
   workup.ADDITIONthe addition of the monomer latex suspension
7. 7
   ДругоеPolymerization
8. 8
   workup.ADDITIONafter completion of the addition

Методика

For comparison, a poly(styrene/BA/β-CEA) polymer was prepared. An aqueous solution of DOWFAX surfactant (0.68 g) in 514 g of deionized water was heated to 76° C., and an initiator solution of 8.1 g of ammonium persulfate in 45 g of deionized water was added. A second aqueous solution of 10.8 g DOWFAX, 257 g deionized water was prepared, and a monomer solution of 418.5 g styrene, 123 g butyl acrylate (BA), 16.2 g of β-carboxyethyl acrylate (β-CEA), 1.89 g decanediol diacrylate (ADOD) and 5.94 g dodecylthiol was added to form a monomer latex suspension. The monomer latex suspension is then added dropwise over the course of 5 hours into the first aqueous solution. After 1.5 hours of monomer latex addition, 3.29 g of additional dodecylthiol was added to the monomer latex suspension and the addition of the monomer latex suspension was then continued. Polymerization was continued for another 2 hours after completion of the addition. A poly(styrene/BA/β-CEA) polymer latex with a solids content of 41% was obtained.

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