Polyetherketones: Synthesis, Characterization and Antimicrobial Activity

Abstract

Friedel-Crafts polyetherketones were prepared from o-chlorophenol, 1,4-phenylenedioxy diacetylchloride (1,4-PDC), chloroacetyl chloride (CAC), 1,2-dichloroethane (DCE), and dichloromethane (DCM) using anhydrous aluminium chloride (AlCl 3 ) as catalyst and carbon disulfide (CS 2 ) as solvent. These resins were characterized by IR spectroscopy and gel permeation chromatography. Carius method was employed to obtain the percentage of chlorine content in the resins. The kinetic parameters for the thermal behavior of the resins were evaluated from thermogravimetry (TG) using Broido method. Differential scanning calorimetry (DSC) thermograms of these resins were also obtained. All the polyetherketones were tested for their antimicrobial properties against bacteria, fungi, and yeast. It was observed that most of the polyetherketones synthesized could be used as antibacterial and antifungal agents.

Untitled

“…The azo compound possesses special bonding properties due to the existence of -N=N-group [12] and have alone pair on nitrogen atom and when linked to an aromatic ring carrying an additional donor sites is well suitable for chelation and formed various metal complexes with transition metal ion with unusual structural, magnetic and biological properties. The thiazole functional group played significantly to generate the diversity of certain biological properties such as antibacterial, antiviral and antitubercular activities [13], [15]. The one pot synthesis of some novel derivatives of thiazolo [2, 3-dihydropyrimidinone] possessing [4-methylthiophenyl] moiety and examined their antibacterial and antifungal activities [16].…”

Antimicrobial Applications of Transition Metal Complexes of Benzothiazole Based Terpolymer: Synthesis, Characterization, and Effect on Bacterial and Fungal Strains

“…The Cu 2+ chelated polyurea shows higher zone of inhibition than the other ones due to higher stability constant and may be used in biomedical applications. Patel et al [ 14 ] reported that the synthesis of low molecular weight polymeric resins contains several functional groups in gaining importance to involve the antimicrobial activity. All the synthesized polymers were examined for the antimicrobial activity against bacteria ( Escherichia coli , Bacillus subtilis , and Staphylococcus citreus ), fungi ( Aspergillus niger , Sporotrichum pulverulentum , and Trichoderma lignorum ), and yeast ( Candida utilis , Saccharomyces cerevisiae , and Pichia stipitis ).…”