Isopropanol → Sodium styrene sulfonate styrene

HRID 2179839Notes

Reaction equation

HRID 2179839 reaction equation
C(O)(C)C.[CH2:5]=[CH:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[CH:13]([S:21]([O-:24])(=[O:23])=[O:22])=[CH:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.[Na+:25].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH2:5]=[CH:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[CH:13]([S:21]([O-:24])(=[O:22])=[O:23])=[CH:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.[Na+:25]

Participants

6

Reactant 4

HCID 3776IsopropanolHCID 7501StyreneHCID 62648Ammonium PersulfateHCID 53627496Sodium styrenesulfonate

Product 1

HCID 86658015Sodium styrene sulfonate styrene

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A 1 L four-necked flask was charged with 230 g of isopropyl alcohol (manufactured by Kishida Chemical Co., Ltd.), 345 g of ion exchanged water, 10 g of styrene (manufactured by Kishida Chemical Co., Ltd.), and 40 g of sodium styrene sulfonate (manufactured by Wako Pure Chemical Industries, Ltd.), and 6.6 g of ammonium persulfate (manufactured by Wako Pure Chemical Industries, Ltd.) was added as an initiator. Of this mixture, 189.4 g (30 wt % of the whole reaction liquid) was transferred to a 200 mL dropping funnel, and added dropwise over six hours at 65±5° C., further aged for two hours, and the solvent was thereafter removed under reduced pressure to give styrene/sodium styrene sulfonate copolymer (33/67 mol %). The weight-average molecular weight of this copolymer was 11000.

Workup

  1. additionwas added as an initiator
  2. customOf this mixture, 189.4 g (30 wt % of the whole reaction liquid)
  3. additionadded dropwise over six hours at 65±5° C.
  4. customthe solvent was thereafter removed under reduced pressure

Sources & evidence

ORD record
ord-1b31340390a0478ea00376db2f01e54a
Source dataset
uspto-grants-2015_06
Patent number
US09070399B2

Reaction notes

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