Reduction of dissolved oxygen in boiler water using new redox polymers |
| |
| Authors: | Christophe Waterlot Daniel Couturier |
| |
| Affiliation: | 1. Groupe ISA, Equipe Sols et Environnement, Laboratoire Génie Civil et géo‐Environnement Lille Nord de France, 48 boulevard Vauban, 59046 Lille cedex, France;2. Laboratoire d'Ingénierie Moléculaire, Université des Sciences et Technologies de Lille, Batiment C4, 1er étage, Villeneuve d'Ascq Cedex 59655, France |
| |
| Abstract: | New polymers were used as catalysts for the removal of dissolved oxygen in boiler water. These polymers, based upon hydroquinone‐quinone redox system, were prepared by polymerization of methyl 4‐(2,5‐dimethoxybenzyl)cinnamate and copolymerization of this monomer with 4‐(4′‐vinylphenethyl)‐1,10‐phenanthroline. The resulting product was used to synthesize polymers containing transition metal ions. Nuclear magnetic resonance, infrared spectroscopy, and elemental analysis were achieved to characterize monomers and/or electron‐transfer polymers. These polymers were used for the removal of oxygen from water. It was shown that the oxygen content was reduced to less than 0.1 mg L?1 in ～ 70 s. Based on the obtained results, the redox capacity of two polymers were determined. It was established that the poly‐4‐(2,5‐dihydroxybenzyl)cinnamic acid reached a redox capacity of 69.7 mg of O2 per gram of polymer. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 |
| |
| Keywords: | electron‐transfer polymers dissolved oxygen hydroquinone phenantroline |
|
|
