Vinyl Chloride → Vinyl Chloride

HRID 709346Notes

Reaction equation

HRID 709346 reaction equation
[CH:1]([Cl:3])=[CH2:2].S(OOS([O-])(=O)=O)([O-])(=O)=[O:5].[K+:14].[K+].[CH2:16]([O:28][S:29]([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)(=[O:31])=[O:30])[CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27].[Na:38]>O>[CH:1]([Cl:3])=[CH2:2].[CH2:16]([O:28][S:29]([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)(=[O:31])=[O:30])[CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27].[Na:38].[C:16]([O-:28])(=[O:5])[CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27].[K+:14]

Participants

7

Reactant 3

HCID 6338Vinyl Chloride3×HCID 24412Potassium PersulfateHCID 57371080Sodium dodecylbenzene sulphonate

Product 3

HCID 6338Vinyl ChlorideHCID 23675775Potassium laurateHCID 57371080Sodium dodecylbenzene sulphonate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
66 °C

Procedure

A 2.5-L autoclave was charged with 900 g of deionized water, 750 g of vinyl chloride monomer, 5 g of 3 wt % potassium persulfate, and 75 g of an aqueous sodium dodecylbenzenesulfonate solution having a concentration of 5 wt % (0.50 parts by weight based on the monomer), and by raising the temperature to 66° C., emulsion polymerization was allowed to proceed. After the saturated vapor pressure of vinyl chloride at 66° C. was reduced to 0.7 MPa, unreacted vinyl chloride monomer was recovered. To the residue, 235 g of an aqueous sodium dodecylbenzenesulfonate solution having a concentration of 5 wt % (1.57 parts by weight based on the monomer) and 45 g of an aqueous potassium laurate solution having a concentration of 5 wt % (0.30 parts by weight based on the monomer) were additionally added to obtain a vinyl chloride resin latex (amounts of sodium dodecylbenzenesulfonate and potassium laurate, per 100 parts by weight of vinyl chloride homopolymer: 2.30 parts by weight and 0.33 part by weight, respectively). The average particle diameter was measured and found to be 0.1 μm.

Workup

  1. customemulsion polymerization
  2. customat 66° C.
  3. customwas recovered
  4. additionwere additionally added

Sources & evidence

ORD record
ord-9ba6b9ffed674bc68ada20200eec3ea5
Source dataset
uspto-grants-2015_11
Patent number
US09180717B2

Reaction notes

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