ISSN:
0887-624X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Poly(p-benzoquinono)diimidazoles have been synthesized under mild conditions (100 or 150°C) by one-stage polycondensation in N,N-dimethylacetamide (DMAc) or in polyphosphoric acid of 2,3,5,6-tetraamino-p-benzoquinone (TABQ) with terephthalaldehyde and isophthalaldehyde. The model compound 2,6-diphenyl-1,5-dihydro-1′,4′-benzoquinono[2′,3′-d:5′,6′-d′]diimidazole was also prepared by condensation of TABQ with benzaldehyde in DMAc at 100°C. The prepared polymers were completely insoluble in organic solvents but slightly soluble (0.5%) in strong acids with viscosities (ηinh) in the range of 0.17-0.38 dL/g (c = 0.2% in formic acid). Their thermal stability was studied by TG analysis.
Additional Material:
4 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1987.080250902
