Volume : IX, Issue : V, May - 2019

INVESTIGATION ON PHYSICOCHEMICAL PROPERTIES OF NOVEL POLYMERIC COMPOSITES

B. Rajeswari, C. Dhivya, R. Santhi, N. Radha

Abstract :

Four new conducting polymers were synthesized by doping Polyaniline with Imidazole, Imidazolium chloride, Imidazolium dichloride and benzimidazole–Schiff base (2–(1H–indol–3yl)–N–(1–Phenylethylidine)ethanamine) by chemical oxidative polymerization of aniline using potassium persulphate as an oxidising agent. The polymer composites were characterized by UV–Visible and FT–IR spectroscopic techniques. In order to remove mercuric ions which are non–bio degradable, the adsorption characteristics of the Pani composites were studied through batch process. Sorption isotherms were constructed using Langmuir, Freundlich, Dubinin Radush–Kevich, Temkin and Redlich Peterson models. Thermodynamic parameters such as ΔG⁰, ΔH⁰ and ΔS⁰ were calculated to understand the spontaneity and randomness of the adsorption process. The morphology of the Pani composites before and after adsorption of HgCl2 on the surface of the Pani composites were found from PXRD, SEM and EDX spectra. The results of UV–Visible, FT–IR spectra, adsorption isotherms and morphological studies have revealed that the Pani composites are suitable adsorbents for the mercuric ions. The newly preared Pani composites are nano meter sized and are recyclable.

Keywords :

Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

INVESTIGATION ON PHYSICOCHEMICAL PROPERTIES OF NOVEL POLYMERIC COMPOSITES, B.Rajeswari, C.Dhivya, R.Santhi, N.Radha INDIAN JOURNAL OF APPLIED RESEARCH : Volume-9 | Issue-5 | May-2019

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