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Thermosetting Resins and Azo Dyes Based on Phosphazenes (1999)

Facchin, Giacomo ; Guarino, Luigi ; Modesti, Michele ; [et al.]

Springer

Journal of inorganic and organometallic polymers and materials 9 (1999), S. 133-150

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ISSN: 1572-8870

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Abstract In this paper we report the preparation of new, phosphazene-based, phenol/formaldehyde thermosetting resins and azo dyes as obtained by carrying out electrophilic substitution reactions of formaldehyde and diazotized aromatic amines, respectively, on free hydroxylic group-containing aryloxy phosphazenes. The synthesis of these last substrates by reacting methoxylated phenoxy and naphthoxy-substituted cyclo and polyphosphazenes with BBr3 under hydrolytic conditions is also described. The reported products were characterized by IR, UV, 1H and 31P {1H} NMR spectroscopy, and by thermogravimetric analysis. Their possible applications as polymeric matrices for the preparation of fiber-reinforced composite materials or as photographic dyes is also envisaged.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1021654910340

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