Solvent and catalyst-free synthesis of polyphosphates

Literature Information

Publication Date 2006-06-27
DOI 10.1039/B602462A
Impact Factor 10.182
Authors

Smaranda Iliescu, Gheorghe Ilia, Nicoleta Plesu, Adriana Popa, Aurelia Pascariu


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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.

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DOI: 10.1039/AN94267FX045

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DOI: 10.1039/AN942670405B

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DOI: 10.1039/AN996210012N

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