Reaktion #1814

Reaktionsgleichung

3,3'-Diaminobenzidine

trans,trans-muconic acid

→

benzobisimidazole Divinylene

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThis polymerization reaction
2. 2
   Sonstigewas conducted for a total of 30 hours
3. 3
   Sonstigethe first 6 hours of which
4. 4
   Sonstigewere at a temperature of 100° C.
5. 5
   Sonstige24 hours
6. 6
   Sonstigeat 140° C
7. 7
   SonstigeThis product was precipitated in water
8. 8
   Sonstigepurified by extraction, for 3 days, with water

Vorschrift

3,3'-Diaminobenzidine (1.508 g, 7.04 mmol) was dehydrochlorinated with 83.3 wt % deaerated PPA in accordance with the procedure enumerated in Example 1. The product of this dehydrochlorination was reacted with trans,trans-muconic acid (1.0 g, 7.04 mmol) in accordance with the procedure of Example 1. This polymerization reaction was conducted for a total of 30 hours, the first 6 hours of which were at a temperature of 100° C. and the final 24 hours at 140° C. The product of this reaction was a yellowish-brown polymerization dope. This product was precipitated in water and purified by extraction, for 3 days, with water.

Quelle