Methyl Methacrylate → HCID 86584213, compound

HRID 2302020Notes

Reaction equation

HRID 2302020 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][C:6](S([O-])(=O)=O)=[CH:5][CH:4]=1.[Na+].S([O-])([O-])(=O)=O.[Na+].[Na+].N(C(C)(CC(C)C)C#N)=N[C:23](C)(CC(C)C)[C:24]#N.[C:39]([O:44][CH3:45])(=[O:43])[C:40]([CH3:42])=[CH2:41]>O.C(O)(=O)C(C)=C.C(C1C=CC=CC=1C=C)=C>[C:39]([O:44][CH3:45])(=[O:43])[C:40]([CH3:42])=[CH2:41].[C:39]([OH:44])(=[O:43])[C:40]([CH3:42])=[CH2:41].[CH:2]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:23]=[CH2:24])=[CH2:1]

Participants

8

Reactant 4

HCID 6658Methyl MethacrylateHCID 24436Sodium SulfateHCID 915372,2'-Azobis(2,4-dimethylvaleronitrile)HCID 3571582Sodium 4-styrenesulfonate

Product 1

HCID 86584213HCID 86584213, compound

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 4093Methacrylic AcidSolvent2×HCID 666661,2-DiethenylbenzeneSolvent

Procedure

A water-soluble polymer (300 parts) consisting of methacrylic acid and sodium p-styrenesulfonate (70:30) and 30 parts of sodium sulfate were dissolved in 6595 parts of water and placed in a polymerization vessel equipped with a paddle-shaped stirrer. After that, 15 parts of 2,2′-azobis (2,4-dimethylvaleronitrile) were dissolved in a mixture of 2300 parts of methyl methacrylate, 250 parts of methacrylic acid and 500 parts of divinylbenzene, placed in a polymerization vessel and subjected to a suspension polymerization at 60° C. for 2 hours under a stirring condition of 300 rpm to give a cross-linked copolymer of methyl methacrylate/methacrylic acid/divinylbenzene having an average particle size of 60 μm. Since the resulting polymer was a carboxylic acid type, it was adjusted to pH 12 using 0.1N aqueous solution of potassium hydroxide at room temperature to give a potassium type. The resulting particles were pulverized, applied and corrugated by the same manner as in Example 1 and the two-minute moisture-absorbing and desorbing rates were measured. The evaluated result is shown in Table 2 and, since the amount of carboxyl group of a potassium type was very little, equilibrium moisture-absorbing ratio was low and the two-minute moisture-absorbing and desorbing rates were extremely slow as well whereby the product is meaningless in practical use.

Workup

  1. customplaced in a polymerization vessel
  2. customequipped with a paddle-shaped stirrer
  3. customplaced in a polymerization vessel
  4. customsubjected to a suspension polymerization at 60° C. for 2 hours under a stirring condition of 300 rpm

Sources & evidence

ORD record
ord-5d164b18e1454fcabff10e23b6426797
Source dataset
uspto-grants-2002_08
Patent number
US06429265B2

Reaction notes

Loading…