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Methacrylic Acid → Acrylic Acid

HRID 1583718
Notes
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Reaction equation

HRID 1583718 reaction equation
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC[O:35][C:36]([C:38](C)=[CH2:39])=[O:37].C(O)(=O)C(C)=C.CCCCCCCC/C=C\CCCCCCCC(OCC(O)[C@H]1OC[C@H](O)[C@H]1O)=O.C([O-])(=O)C.C([O-])(=O)C.C([O-])(=O)C.C([O-])(=O)C.C([O-])(=O)C.[NH2:97]CCNCCN.[Na+].[Na+].[Na+].[Na+].[Na+].O.O.P(O)(O)([O-])=O.[Na+].C(C=CC(N)=O)C=CC(N)=O.C(O)CCCCCCCCCCCC.C(C1C=CC=CC=1O)CCCCCCCC>O>[C:36]([OH:37])(=[O:35])[CH:38]=[CH2:39].[C:36]([O-:37])(=[O:35])[CH:38]=[CH2:39].[NH4+:97]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

11

Reactant 8

HCID 4093Methacrylic AcidHCID 82071-TridecanolHCID 67296NonylphenolHCID 106046Tetratriacontyl methacrylateHCID 22395492Penta sodium diethylenetriamine pentaacetateHCID 23673460Sodium Phosphate, Monobasic, Dihydrate
HCID 53800990
Methylene-bisacrylamide
HCID 70693544Span #80 (Sorbitan monooleate)

Product 2

HCID 6581Acrylic AcidHCID 161596Ammonium acrylate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A blend of 25 mole % acrylic acid and 75 mole % ammonium acrylate was polymerised by the same general technique as in Example 1 except that the dispersion stabiliser mixture was formed of 75% by weight of a 2:1 molar copolymer of ceto stearyl methacrylate to methacrylic acid and 25% by weight sorbitan monooleate and the aqueous phase contained 0.4722 mole % of monomers based on weight of aqueous phase, 0.795×10-4 mole % of penta sodium diethylenetriamine pentaacetate based on weight of aqueous phase, 5.13×10-2 mole % of mono-sodium phosphate dihydrate based on weight of aqueous phase, 21.76×10-3 mole % of cross-linking agent (methylene-bisacrylamide) based on moles of monomers and 9.2×10-3 mole % of azobisamidinopropane hydrochloride based on moles of monomers. The dispersion obtained upon polymerisation and distillation was rendered water dispersible by adding 7.3% by weight on weight of final oil phase a phosphoric acid ester of a 5 mole ethoxylate of tridecanol and 7.3% by weight on weight of final oil phase of a 7 mole ethoxylate of nonyl phenol.

Workup

  1. customwas formed of 75% by weight of a 2
  2. customThe dispersion obtained upon polymerisation and distillation

Sources & evidence

ORD record
ord-bb87de2940064a7e9988c873337c0705
Source dataset
uspto-grants-1985_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US04554018

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes