Issue 8, 2006

Solvent and catalyst-free synthesis of polyphosphates

Abstract

Direct, efficient, solvent and catalyst-free synthesis of a series of polyphosphates was accomplished. The reaction involved a gas–liquid interfacial polycondensation between alkyl(aryl)phosphoric dichlorides and aromatic diols. The polyphosphates were characterized by IR, 1H NMR, inherent viscosity, thermal analysis, X-ray diffractions and molar mass. Yields in the range 75–90% and inherent viscosities in the range 0.24–0.45 dl g−1 were obtained. Polyphosphates were stable up to 170–250 °C, depending on phosphoric dichloride type. The X-ray diffraction patterns revealed that almost all the polymers were amorphous.

Graphical abstract: Solvent and catalyst-free synthesis of polyphosphates

Supplementary files

Article information

Article type
Paper
Submitted
17 Feb 2006
Accepted
13 Jun 2006
First published
27 Jun 2006

Green Chem., 2006,8, 727-730

Solvent and catalyst-free synthesis of polyphosphates

S. Iliescu, G. Ilia, N. Plesu, A. Popa and A. Pascariu, Green Chem., 2006, 8, 727 DOI: 10.1039/B602462A

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