Synthesis and characterization of polymer-based hybrid materials via oxidation of Mn(II) using N-chlorosulphonamide polymers

Agnieszka Ciechanowska , Jerzy Hanuza , Elżbieta Kociołek-Balawejder , Ewa Stanisławska

Abstract

Polymer/metal oxide hybrids represent an perspective class of materials with specific properties. Polymer-based hybrid materials containing manganese oxide/hydroxide due to their catalytic, adsorptive and oxidizing properties are the group of materials with large potential applications. Beads of three macroporous and macromolecular oxidants, polystyrene crosslinked by divinylbenzene containing pendant groups: N-chlorosulphonamide in Na+ form, N-chlorosulphonamide in H+ form and N,N-dichlorosulphonamide were used to oxidize Mn(II) to Mn(IV). The investigation were carried out using both the batchwise and column methods, and 0.01 M MnSO4 as well as 0.0025 M MnSO4 solutions were used. We found that the investigated oxidation reaction is favoured by the alkaline medium. The best product in the form of black brilliant beads containing 75 mg Mn g−1 was obtained using polymer supported single bondSO2NClNa groups. The prepared material was characterized by: FT-IR, EPR and reflectance UV–vis spectra, SEM, X-ray diffraction, porous characteristics, magnetic measurements and thermal analysis. It has been found that hydrous manganese oxide(IV) was well dispersed within the polymer matrix. Amorphous and paramagnetic properties make this new product potentially useful in adsorptive and catalytic processes particularly in oxidative sorption processes
Author Agnieszka Ciechanowska (EaE / IChaFT / DChT)
Agnieszka Ciechanowska,,
- Department of Chemical Technology
, Jerzy Hanuza - [Wrocław University of Economics]
Jerzy Hanuza,,
-
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, Elżbieta Kociołek-Balawejder (EaE / IChaFT / DChT)
Elżbieta Kociołek-Balawejder,,
- Department of Chemical Technology
, Ewa Stanisławska (EaE / IChaFT / DChT)
Ewa Stanisławska,,
- Department of Chemical Technology
Journal seriesMaterials Chemistry and Physics, ISSN 0254-0584, (A 35 pkt)
Issue year2012
Vol132
No2-3
Pages870-879
Publication size in sheets0.5
Keywords in Englishredox polymers, N-chlorosulphonamide polymers, Mn(II) oxidation, hydrous manganese oxide (HMO), organic/inorganic hybrid materials
ASJC Classification3104 Condensed Matter Physics; 2500 General Materials Science
DOIDOI:10.1016/j.matchemphys.2011.12.027
Languageen angielski
Score (nominal)35
Score sourcejournalList
Publication indicators Scopus Citations = 5; Scopus SNIP (Source Normalised Impact per Paper): 2012 = 1.434; WoS Impact Factor: 2012 = 2.072 (2) - 2012=2.395 (5)
Citation count*4 (2016-09-12)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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