Thermal, Catalytic and Antimicrobial Aspects of Poly[(2-hydroxy,4-ethoxyacetophenone)butylene] Resin and its Polychelates with 4f — block Elements

Abstract

The polymeric ligand was synthesized by condensation of 2-hydroxy-4-ethoxyacetophenone with 1,4-butane diol in presence of polyphosphoric acid as a catalyst at 145 °C for 10 h. The synthesized polymeric ligand was used to synthesize the corresponding polychelates with 4f-block elements. The polymeric ligand and its polychelates were characterized by elemental analyses, electronic spectra, magnetic susceptibilities, Fourier transform infrared spectroscopy, nuclear magnetic resonance and thermogravimetric analyses. Morphological study of the polymeric ligand and polychelates were carried out by scanning electron microscopy. Number average molecular weight ( Mn) was determined by a vapor pressure osmometry method. Antimicrobial activity for all polychelates and catalytic activity of selected polychelates in organic synthesis were examined. It was observed from the study that the polychelates acted as an efficient catalysts and antimicrobial agents.