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Synthesis of Hybrid Cation Exchange Fibers by E-Beam Preirradiation and Their Adsorption Properties for Metal Ions  

Baek Ki-Wan (School of Advanced Materials Engineering, College of Engineering, Chungnam National University)
Nho Young-Chang (Korea Atomic Energy Research Institute)
Hwang Taek-Sung (School of Advanced Materials Engineering, College of Engineering, Chungnam National University)
Publication Information
Polymer(Korea) / v.30, no.4, 2006 , pp. 305-310 More about this Journal
Abstract
The hybrid cation exchange fibers using graft copolymer of styrene onto PE/PP with PET trunk polymers were synthesized by electron beam preirradiation. The degree of grafting showed 123% value at 80% concentration of styrene. And also, amount of sulfonyl group in the ion exchanger was showed 3.3 mmol/g at 70% concentration of styrene and their values were constant after 70%. The tensile strength for fibers was lower than trunk fibers, and their value of ion exchange fibers were also below than copolymer. It was $0.206kgf/mm^2$ value. The breakthrough time for Ca and Mg ions of hybrid cation exchange fibers were increased with the increase in the pH and temperature. The breakthrough of Mg was slower the mixture than single Mg solution. Adsorption rate constant for Ca, Mg ions and maximum ion exchange capacity were 0.012, 0.011 L/mg.h and 47.06, 42.83 mg/g, and also, activation energies were 2169 and 1534 J/mol, respectively.
Keywords
hybrid cation exchange fibers; e-beam preirradiation; calcium; magnesium; adsorption; rate constant; activation energy;
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