Vinyl Acetate → Acetic acid ethenyl ester, polymer with 2,5-furandione

HRID 1704193

Reaktionsgleichung

Reaktionsgleichung von HRID 1704193
[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.[C:8]([O:11][CH:12]=[CH2:13])(=[O:10])[CH3:9].C(OOC(C)(C)C)(C)(C)C>C1(C)C(C)=CC=CC=1>[C:4]1(=[O:5])[O:6][C:1](=[O:7])[CH:2]=[CH:3]1.[C:8]([O:11][CH:12]=[CH2:13])(=[O:10])[CH3:9]

Komponenten

5

Edukt 3

HCID 7904Vinyl AcetateHCID 7923Maleic AnhydrideHCID 8033Di-tert-butyl peroxide

Produkt 1

HCID 269112Acetic acid ethenyl ester, polymer with 2,5-furandioneAusbeute 87 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7237O-XyleneLösungsmittel2×

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

73.5 parts by weight of maleic anhydride and 21.4 parts by weight of vinyl acetate were dissolved in 240 parts by volume of xylene and heated to 70° C. 4.5 parts by weight of ditertiary butyl peroxide in 20 parts by volume of xylene were added and the reaction mixture was heated to 130° C. and maintained at this temperature for 3 hours. A brown resin precipitated, which on cooling solidified, and was easily separated from the bulk of the xylene by decantation. Yield = 87% (on weight of monomers). The number average molecular weight of the polymer by vapour phase osmometry was found to be 675.

Aufarbeitung

  1. temperaturethe reaction mixture was heated to 130° C.
  2. temperaturemaintained at this temperature for 3 hours
  3. customA brown resin precipitated
  4. temperaturewhich on cooling solidified
  5. customwas easily separated from the bulk of the xylene by decantation

Quellen und Nachweise

ORD-Eintrag
ord-a6b68616e44d4cad8bc9ed8bea921397
Quelldatensatz
uspto-grants-1978_11
Patentnummer
US04126549

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