| IAEA-CN-115-49 · Electron Beam Processed Polyelectrolytes
E. Manaila, D. Martin, G. Craciun, D. Ighigeanu, C. Oproiu, N. Iacob
National Institute for Laser, Plasma and Radiation Physics, Electron Accelerators Laboratory,
#409 Atomistilor St., P.O.Box-MG36, 077125 Magurele, jud. Ilfov, Romania
Abstract: Comparative results obtained by electron beam induced polymerization of water-soluble monomers at
low and high absorbed dose level are presented. At high dose rate levels, the polymerization process is
incomplete, monomer conversion decreases, polymer parameters become very sensitive to the chemical
composition and variations in absorbed dose level. The effect of high-absorbed dose rate is reduced by the
additional introduction of NaCl into acrylamide-acrylic acid aqueous solutions that under irradiation markedly
increases conversion coefficient to nearly 100% and decreases residual monomer concentration under 0.01. The
process has been demonstrated in a pilot-scale operation.
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