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Phthalocyanine polymers. II. Synthesis and characterization of some metal phthalocyanine sheet oligomers

✍ Scribed by Achar, B. N. ;Fohlen, G. M. ;Parker, J. A.

Publisher
John Wiley and Sons
Year
1982
Weight
315 KB
Volume
20
Category
Article
ISSN
0360-6376

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✦ Synopsis

Abstract

Metal phthalocyanine oligomers that possess peripheral carboxylic acid groups were prepared by the reaction of pyromellitic dianhydride, a metal salt, urea, and a catalyst. These materials have blue to purple colors with a metallic luster and are soluble in sulfuric acid, dimethylsulfoxide, dimethylformamide, and dimethylacetamide. Their thermal stability is high in an anaerobic atmosphere with char yields of 80–85% at 800°C. Elemental, spectral, and titrimetric analyses and thermal studies were carried out to characterize them.

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