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Vol. 31 No. 8 (2019): Vol 31 Issue 8

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Characterization of Natural Rubber/Polyethylene Oxide (NR/PEO) Block Copolymer-Metal Ion Chelates

https://doi.org/10.14233/ajchem.2019.22043
M.S. Mrudula
School of Chemical Sciences, Mahatma Gandhi University, Kottayam-686560, India
https://orcid.org/0000-0003-1347-0071
M.R. Gopinathan Nair
School of Chemical Sciences, Mahatma Gandhi University, Kottayam-686560, India
https://orcid.org/0000-0002-0528-6488

Corresponding Author(s) : M.R. Gopinathan Nair

mrgnairscs@gmail.com

Asian Journal of Chemistry, Vol. 31 No. 8 (2019): Vol 31 Issue 8

Abstract

Two shot solution polymerized natural rubber/polyethylene oxide (NR/PEO) block copolymers are used as chelating exchanger for the metal ions Mn(II) and Fe(II). The polymer - metal ion chelates are prepared via solution batch adsorption method and are subjected to various characterisation techniques. Adsorption studies shows 96 and 63 % complexation for Mn(II) and Fe(III) ions, respectively. The 72 helical conformation of PEO and metal-etheric oxygen coordination are confirmed by FT-IR spectroscopy. The XRD results revealed the complete miscibility of metal ions and semi-crystalline nature of samples. The EDX analysis confirmed the presence of metal ions in the polymer chelates. Surface morphology is also studied using SEM and TEM techniques.

Keywords

Natural rubber Polyethylene oxide Block copolymer Polymer chelate Adsorption
Mrudula, M., & Gopinathan Nair, M. (2019). Characterization of Natural Rubber/Polyethylene Oxide (NR/PEO) Block Copolymer-Metal Ion Chelates. Asian Journal of Chemistry, 31(8), 1791–1797. https://doi.org/10.14233/ajchem.2019.22043
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