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Mobile macromolecular carriers of ionic substances, 1. Transport of heavy metal ions by polymer analogues of teichoic acids
Author(s) -
Wódzki Romuald,
Kałużyński Krzysztof,
Kłosiński Paweł
Publication year - 1997
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1997.021980610
Subject(s) - teichoic acid , chemistry , membrane , phosphate , metal ions in aqueous solution , polymer , ionic bonding , metal , polymer chemistry , sulfuric acid , polyelectrolyte , ion exchange , inorganic chemistry , nuclear chemistry , ion , cell wall , organic chemistry , biochemistry , peptidoglycan
Bioanalogous organic polyphosphates (PP) and polymer ion‐exchange membranes (IEM) were used to arrange a membrane system for the transportation of Zn(II), Mn(II), Cu(II), Co(II) and Ni(II) ions. The system consists of three membranes separating a feed and a strip solution with metal sulfates and sulfuric acid, respectively:\documentclass{article}\pagestyle{empty}\begin{document}$ {\rm MSO}_4 \left| {{\rm IEM}} \right|{\rm Liquid\; membrane \;with \;PP}\left| {{\rm IEM}} \right|{\rm H}_{\rm 2} {\rm SO}_{\rm 4} $\end{document} Poly(trimethylene phosphate), α‐hydroxy‐ω‐(2‐ethylhexyl)poly(trimethylene phosphate), poly(1,2‐glycerol phosphate) and poly(2,3‐acetoxyglycerol phosphate) were used as ionic carriers for mimicking some transport functions of natural teichoic acids. These polyelectrolytes were found to facilitate the exchange‐diffusion process of heavy metal ions and to exhibit fluxes in the range 3,5 · 10 −9 – 6 · 10 −9 mol M(II)/(cm 2 · s). The specific stationary fluxes typically change in the order J Cu > J Co > J Ni > J Mn > J Zn . The observed transport preference is consistent with the affinity order of teichoic acids or the bacteria cell wall toward Cu(II), Mn(II) and Zn(II).