Lee, Khai Ern
(2012)
Preparation, Characterization And Application Of Magnesium Salt-Polyacrylamide Hybrid Materials In Dye Wastewater Treatment.
PhD thesis, Perpustakaan Hamzah Sendut.
Abstract
Magnesium salt-polyacrylamide hybrid materials were prepared, characterized
and applied for reactive dye wastewater treatment. Polyacrylamide was prepared from
acrylamide monomer through redox polymerization. The fundamental aspects of
polyacrylamide redox polymerization were studied through investigation of mechanism,
kinetics, thermodynamics and in situ rheological properties of the redox polymerization
process. The redox polymerization of polyacrylamide was optimized through design of
experiment. The physicochemical properties of the polyacrylamide were investigated in
terms of chemical structure, molecular weight distribution as well as viscosity in
aqueous solution. The yield of the optimal redox polymerization of polyacrylamide was
96.89% with molecular weight of 1.66 x 106 Da. Magnesium salt-polyacrylamide hybrid
materials were prepared through physical blending of magnesium chloride and
magnesium hydroxide with polyacrylamide in aqueous solution to form magnesium
chloride-polyacrylamide (MCPAM) and magnesium hydroxide-polyacrylamide
(MHPAM) hybrid materials, respectively.
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