Synthesis and characterization of coumarin-substituted polyorganophosphazene

Authors: Gudasi, K.B.; Vadavi, R.S.; Sairam, M.; Aminabhavi, T.M.

Source: Designed Monomers & Polymers, Volume 9, Number 5, 2006 , pp. 517-526(10)

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Abstract:

A new type of polyorganophosphazene, viz., poly(bis(3-acetylcoumarine-o-aminobenzoylhydrazone) phosphazene) (PAAP), was prepared by replacing the chlorine atoms of polydichlorophosphazene using 3-acetylcoumarin-o-aminobenzoylhydrazone (ACAB) as a nucleophile. ACAB was characterized by spectral and single crystal X-ray diffraction studies. PAAP was characterized by Fourier transform infrared (FT-IR), ¹H- and ³¹P-NMR spectral data. Thermogravimetry (TGA) was used to investigate the thermal properties. Spectral data confirmed the formation of PAAP, while TGA showed polymer stability up to 210°C.

Keywords: DICHLOROPOLYPHOSPHAZENE; 3-ACETYLCOUMARINE-O-AMINOBENZOYLHYDRAZONE; POLY(BIS(3-ACETYLCOUMARIN-O-AMINOBENZOYLHYDRAZONE)

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156855506778538065

Publication date: 2006-09-01