Abstract
| - Layered α-zirconium(IV) phosphonate nanoplatelets are prepared by conventional ion exchange between ZrF62− and a new series of alkylphosphonic acids of the type RO(CH2)nP(O)(OH)2, where R = methyl or ethyl and n = 8, 9, or 11. Potential benefits of the postulated material structures are discussed.
- Layered α-zirconium(IV) phosphonates were prepared from novel ether-terminal alkylphosphonic acids, providing nanoplatelets with brushlike polar surfaces. The precursor materials were characterized by NMR, mass spectrometry, and elemental analysis. The derived nanoparticles were examined by XRD, TEM, TGA, and elemental analysis. The experimental compositions were slightly rich in organophosphorus content. In general, the layered materials had good crystallinity, with layer reflections appearing up to (005) and d-spacings consistent with the anticipated α-phase structure. Computer simulations suggest that tailored surface chemistries, including ether functionalities, will offer favorable thermodynamic interactions with polyester polymer matrixes.
|