title: Synthesis of new phosphorus-containing (co)polyesters using solid-liquid phase transfer catalysis and product characterization.
abstract: 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, (1)H- and (31)P-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.
authors: Institute of Chemistry, Romanian Academy, 24 Mihai Viteazul Bvd., Timisoara 300-223, Romania.
authors: Smaranda
authors: S
authors: Iliescu
authors: Maite-Gyl
authors: MG
authors: Augusti
authors: Eugenia
authors: E
authors: Fagadar-Cosma
authors: Nicoleta
authors: N
authors: Plesu
authors: Gheorghe
authors: G
authors: Fagadar-Cosma
authors: Lavinia
authors: L
authors: Macarie
authors: Adriana
authors: A
authors: Popa
authors: Gheorghe
authors: G
authors: Ilia
mesh_terms: D002384:Catalysis; D004553:Electric Conductivity; D004563:Electrochemistry; D008567:Membranes, Artificial; D063065:Organophosphonates / Q000138:chemical synthesis* / Q000737:chemistry; D009943:Organophosphorus Compounds / Q000737:chemistry; D011091:Polyesters / Q000138:chemical synthesis* / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D060327:Solid-Phase Synthesis Techniques; D013816:Thermodynamics
chemical_list: D008567:Membranes, Artificial; D063065:Organophosphonates; D009943:Organophosphorus Compounds; D011091:Polyesters; D011092:Polyethylene Glycols; C023604:phenylphosphonic acid