Pyromellitic dianhydride → 1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone--4,4'-oxydianiline (1/1)

HRID 440625

Reaktionsgleichung

Reaktionsgleichung von HRID 440625
[CH:1]1[C:6]([NH2:7])=[CH:5][CH:4]=[C:3]([O:8][C:9]2[CH:14]=[CH:13][C:12]([NH2:15])=[CH:11][CH:10]=2)[CH:2]=1.[CH:16]1[C:21]2[C:22]([O:24][C:25](=[O:26])[C:20]=2[CH:19]=[C:18]2[C:27]([O:29][C:30](=[O:31])[C:17]=12)=[O:28])=[O:23]>CC(N(C)C)=O>[CH:19]1[C:18]2[C:27]([O:29][C:30](=[O:31])[C:17]=2[CH:16]=[C:21]2[C:22]([O:24][C:25](=[O:26])[C:20]=12)=[O:23])=[O:28].[CH:13]1[C:12]([NH2:15])=[CH:11][CH:10]=[C:9]([O:8][C:3]2[CH:4]=[CH:5][C:6]([NH2:7])=[CH:1][CH:2]=2)[CH:14]=1

Komponenten

4

Edukt 2

HCID 6966Pyromellitic dianhydrideHCID 75794,4'-Diaminodiphenyl Ether

Produkt 1

HCID 1682561H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone--4,4'-oxydianiline (1/1)

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel2×

Versuchsvorschrift

PMDA/4,4'-ODA resin was prepared by reacting 16.019 g (0.080 moles) of 4,4'-ODA with 17.450 g (0.080 moles) of PMDA In 189.7 g DMAc. To 10.004 g of this resin was added 0.521 g Agtfa in 1.996 g DMAc. The mixture was stirred vigorously with a metal spatula and cast 0.018" thick on a glass plate. The silver ion-containing polyamic acid film was thermally converted to the corresponding surface conducting polyimide by heating for 1 hour each at 100°, 200°, and 300° C. and postcuring 2 hours at 300° C. The resulting flexible, reflective film had a conductivity of 1.7×10-3- -6.2×10-3 Ω-1 by four point probe.

Aufarbeitung

  1. temperatureby heating for 1 hour each at 100°

Quellen und Nachweise

ORD-Eintrag
ord-7e920a051baa4d10ba315201ef504142
Quelldatensatz
uspto-grants-1996_05
Patentnummer
US05520960

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