Reaktionsgleichung
Cl.Cl.Cl.Cl.[NH2:5][C:6]1[CH:11]=[C:10]([NH2:12])[C:9]([NH2:13])=[CH:8][C:7]=1[NH2:14].S1C2C=CC=CC=2N=C1C1C(C(O)=O)=CC=C(C(O)=O)C=1.O=P12OP3(OP(OP(O3)(O1)=O)(=O)O2)=O>>[NH2:5][C:6]1[CH:11]=[C:10]([NH2:12])[C:9]([NH2:13])=[CH:8][C:7]=1[NH2:14]Komponenten
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
1,2,4,5-tetraaminobenzene tetrahydrochloride (1.7138 g, 6.033 mmol), 2-benzothiazole terephthalic acid (1.8059 g, 6.033 mmol) and 5.57 g of polyphosphoric acid (77% P2O5) were placed in a resin flask equipped with a mechanical stirrer, nitrogen inlet/outlet tubes, a vacuum connector and a side opening on the resin flask. The solution was heated at 90° C. in vacuo for 24 hours for dehydrochlorination. The reaction mixture was cooled to 60° C., then 4.04 g of P2O5 was added, in vacuo, thereby raising the polymer concentration to 18%. After adding the P2O5, heating was resumed. The reaction mixture was heated to 164° C., at which temperature the mixture became opalescent. The mixture was heated at 174° C. for 24 hours, then at 190° C. for 4 hours. Work-up, as in the preceeding Example, gave a polymer with [N]=7.5 dl/g, methanesulfonic acid at 30° C.
Aufarbeitung
- customequipped with a mechanical stirrer, nitrogen inlet/outlet tubes
- temperatureThe reaction mixture was cooled to 60° C.
- temperatureraising
- concentrationthe polymer concentration to 18%
- additionAfter adding the P2O5
- temperatureheating
- temperatureThe reaction mixture was heated to 164° C., at which temperature the mixture
- temperatureThe mixture was heated at 174° C. for 24 hours
- customat 30° C.
Quellen und Nachweise
- ORD-Eintrag
- ord-aa6ef18ea8434f53b510154735638b59
- Quelldatensatz
- uspto-grants-1988_11
- Patentnummer
- US04785115
Verknüpfte Notizen
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