• Applied Chemistry for Engineering
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• v.17 no.6
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• pp.653-657
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• 2006

The adsorption properties for $NO_{2}$ by hybrid ion exchange fiber with resins were investigated. The adsorption of $NO_{2}$ was increased with increasing of adsorption time and the initial concentration. At the initial $NO_{2}$ concentration of 900 ppm, approximately 40% of initial $NO_{2}$ was adsorbed around 20 min. And the adsorption of $NO_{2}$ was decreased with increasing of flow rate from 20 to 40 L/min. The maximum adsorbed amount of initial $NO_{2}$ was 45% at the flow rate of 10 L/min. The amount of adsorption was increased with increasing the water content.

• Polymer(Korea)
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• v.31 no.4
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• pp.315-321
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• 2007

Aminated PONF-9-GMA ion exchange fabrics were synthesized by radiation induced graft copolymerization. Hybrid ion exchange fabrics combined with aminated PONF-g-GMA fabrics and anionic ion exchange resin were also fabricated by hot melt adhesion method and then their adsorption properties were investigated. Ion exchange capacity of the hybrid ion exchange fabrics was higher than ion exchange fabric and was lower than bead resin. The maximum value was 4.18 meq/g. Adsorption breakthrough time for vanadium of the hybrid ion exchange fabric was 550 min, which was faster than bead resin but slower than fibrous ion exchanger. The Breakthrough time of the hybrid ion exchange fabrics gets longer with increasing pH. The initial breakthrough time occurred around 400 min with increasing vanadium concentration.

• Polymer(Korea)
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• v.30 no.3
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• pp.217-223
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• 2006

Ion exchange fibers, high functionalized onto hybrid polyolefine fiber's surface, were synthesized by $\gamma-ray$ mutual radiation. Degree of grafting (DG) of copolymer increased with increasing GMA monomer concentration and the maximum rate of DG was 355% at 50 GMA. The graft reaction occurred in polar solvent and DG was 190% maximum value in $1.0\times10^{-3}$ Mohr's salt and 0.1 M sulfuric acid, respectively. The amination for graft copolymers varied depending on amine reagents, and the reactivity for copolymers was highest for methylamine, and that of triethylamine lowest. It was shown that water uptake and ion exchange capacities increased with increase in the rate of amination while surface area decreased rapidly as proceeding for graft reaction and amination.