Vinyl Chloride → Vinyl Chloride

HRID 709347Notes

Reaction equation

HRID 709347 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 Chloride2×HCID 24412Potassium PersulfateHCID 57371080Sodium dodecylbenzene sulphonate2×

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 830 g of deionized water, 750 g of vinyl chloride monomer, 6.8 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 initiated. The temperature was kept at 66° C. and when 60 minutes passed after the initiation of polymerization, 270 g of an aqueous sodium dodecylbenzenesulfonate solution having a concentration of 5 wt % (1.80 parts by weight based on the monomer) was continuously added over 360 minutes. After the pressure in the autoclave at 66° C. was reduced to 0.7 MPa, unreacted vinyl chloride monomer was recovered and to the residue, 15 g of an aqueous potassium laurate solution having a concentration of 5 wt % (0.10 parts by weight based on the monomer) was 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: 2.56 parts by weight and 0.11 parts by weight, respectively). The average particle diameter was measured and found to be 0.1 μm.

Workup

  1. customemulsion polymerization
  2. customwas kept at 66° C.
  3. customwhen 60 minutes
  4. additionwas continuously added over 360 minutes
  5. customat 66° C.
  6. customwas recovered and to the residue, 15 g of an aqueous potassium laurate solution
  7. additionwas additionally added

Sources & evidence

ORD record
ord-9d67194767d24c1ea61adc4cfec083b9
Source dataset
uspto-grants-2015_11
Patent number
US09180717B2

Reaction notes

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