Edetate Sodium → HCID 22173653, compound

HRID 1585757Notes

Reaction equation

HRID 1585757 reaction equation
[Na+].C(N(CC([O-])=O)CC([O-])=O)CN(CC([O-])=O)CC([O-])=O.[Na+].[Na+].[Na+].S([O-])[O-].C=O.[Na+].[Na+].[C:32]([O:37][CH3:38])(=[O:36])[C:33]([CH3:35])=[CH2:34].[C:39]([O:43][CH3:44])(=[O:42])[CH:40]=[CH2:41].C(S)CCCCCCC.C(OO)(C)(C)C>O>[C:32]([O:37][CH3:38])(=[O:36])[C:33]([CH3:35])=[CH2:34].[C:39]([O:43][CH3:44])(=[O:42])[CH:40]=[CH2:41]

Participants

8

Reactant 6

HCID 6144Edetate Sodium2×HCID 6410tert-Butyl hydroperoxide2×HCID 6658Methyl Methacrylate2×HCID 7294Methyl Acrylate2×HCID 81441-OctanethiolHCID 21225536CID 212255362×

Product 1

HCID 22173653HCID 22173653, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
80 °C

Procedure

A separable flask fitted with a condenser, a nitrogen inlet and a stirrer was charged with 300 parts of deionized water, 2 parts of polyoxyethylene alkylphenyl ether phosphate sodium salt [GAFAC LO-529 (trade name); manufactured by Toho Chemical Industry Co., Ltd.] as an emulsifier, 0.0003 part of ethylenediaminetetraacetic acid sodium salt (hereinafter abbreviated as EDTA), 0.2 part of sodium formaldehyde sulfoxylate (hereinafter abbreviated as SFS), and 0.0001 part of ferrous sulfate, and its contents were heated to 80° C. with stirring. Then, a mixture composed of 99 parts of methyl methacrylate (hereinafter abbreviated as MMA), 1 part of methyl acrylate (hereinafter abbreviated as MA), 0.25 part of n-octyl mercaptan, and 0.125 part of tert-butyl hydroperoxide (hereinafter abbreviated as TBH) was added dropwise thereto over a period of 1 hour. After completion of the addition, this mixture was held at 80° C. for 2 hours to obtain an aqueous latex of MMA-MA copolymer particles. Measurements according to the dynamic light scattering method (DLS) revealed that these polymer particles had a diameter of 62 nm and a ζ-potential of -36 mV, indicating that they were negatively charged.

Workup

  1. customA separable flask fitted with a condenser, a nitrogen inlet and a stirrer
  2. additionwas added dropwise
  3. additionAfter completion of the addition
  4. waitthis mixture was held at 80° C. for 2 hours

Sources & evidence

ORD record
ord-aad90eb03a2144b8b966fcd3ddb59390
Source dataset
uspto-grants-1999_08
Patent number
US05939471

Reaction notes

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