Réaction #1772056

ord-99b3714e32de4184ae8c2218b8716510

Équation de réaction

C=CP(=O)([O-])[O-]
Vinylphosphonate
O=S(=O)([O-])OOS(=O)(=O)[O-].[Na+].[Na+]
sodium persulfate
[Na+].[OH-]
NaOH
NC(=O)C=CCC=CC(N)=O
methylene-bis-acrylamide
O=S(=O)([O-])OOS(=O)(=O)[O-].[Na+].[Na+]
sodium persulfate
C=CC(=O)O
acrylic acid
→
C=CC(=O)O.C=CP(=O)([O-])[O-]
Vinylphosphonate Acrylic Acid

Réactifs

C=CP(=O)([O-])[O-]
Vinylphosphonate
O=S(=O)([O-])OOS(=O)(=O)[O-].[Na+].[Na+]
sodium persulfate
[Na+].[OH-]
NaOH
NC(=O)C=CCC=CC(N)=O
methylene-bis-acrylamide
O=S(=O)([O-])OOS(=O)(=O)[O-].[Na+].[Na+]
sodium persulfate
C=CC(=O)O
acrylic acid

Réactifs

Aucun

Solvants

O
water
CCCCCC
hexane

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Autreto form a 50 wt-% aqueous solution
  2. 2
    Autre80 deg. C
  3. 3
    Filtrationthe beads filtered
  4. 4
    Lavagewashed repeatedly by methanol and water in this order

Mode opératoire

Vinylphosphonate and acrylic acid are first 50 mol-% neutralized with NaOH to form a 50 wt-% aqueous solution; to this mixture methylene-bis-acrylamide is added in a 10 wt-% to monomers. 100 parts of that monomer mixture are then emulsified in 200 parts of hexane and 1 part of sesquioleate sorbital as a surfactant. 10 parts of a 5 wt-% aqueous solution of sodium persulfate is further added to the suspension. The reaction is held (80 deg. C. for 10 hrs, while 10 parts of sodium persulfate solution are added. The water is then stripped off by a Dean-stark apparatus, the beads filtered and washed repeatedly by methanol and water in this order.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US08147873B2uspto-grants-2012_04