Synthesis of New Phosphorus-Containing (Co)Polyesters Using Solid-Liquid Phase Transfer Catalysis and Product Characterization

Molecules

Smaranda Iliescu¹  Maite-Gyl Augusti²  Eugenia Fagadar-Cosma¹  Nicoleta Plesu¹  Gheorghe Fagadar-Cosma³  Lavinia Macarie¹  Adriana Popa¹ 

[1] Institute of Chemistry, Romanian Academy, 24 Mihai Viteazul Bvd., Timisoara 300-223, Romania;Instituto Tecnológico de la Energía, Av. Juan de la Cierva, 24 Parque Tecnológico de Valencia, Paterna 46980 (Valencia), Spain;Polytechnic University of Timisoara T. Lalescu Street, No. 2, Timisoara 300-223, Romania;

关键词: phase transfer catalysis;    solid polymer electrolytes;    phosphorus containing (co)polyesters;   

DOI  :  10.3390/molecules17089090

来源: mdpi

【 摘 要 】

This paper is directed towards the development of safe, and thermally stable solid polymer electrolytes. Linear phosphorus-containing (co)polyesters are described, including their synthesis, thermal analysis, conductivity, and non-flammability. Polycondensation of phenylphosphonic dichloride (PPD) with poly(ethylene glycol) (PEG 12000) with and without bisphenol A (BA) was carried out using solid-liquid phase transfer catalysis. Potassium phosphate is used as base. Yields in the range of 85.0–88.0%, and inherent viscosities in the range of 0.32–0.58 dL/g were obtained. The polymers were characterized by gel permeation chromatography, FT-IR, ¹H- and ³¹P-NMR spectroscopy and thermal analysis. Their flammability was investigated by measuring limiting oxygen index values. The polymers are flame retardants and begin to lose weight in the 190 °C–231 °C range. Solid phosphorus- containing (co)polyesters were complexed with lithium triflate and the resulting ionic conductivity was determined. Conductivities in the range of 10⁻⁷–10⁻⁸ S cm⁻¹ were obtained.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.