This study involves a free radical graft copolymerization of lignosulfonates (LS) with 2-propenamide (Am), propenoic acid (AA), and methylene-bis-acrylamide (MBAm) in the presence of hydrogen peroxide as the initiator to produce LS-g-p(AA-co-Am-co-MBAm) copolymer. The resulting copolymer was characterized by various techniques such as infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). Viscosity measurements of the copolymer solution, pH values, solid content, gravimetric conversion and mud properties were determined. The effect of various experimental conditions on the characteristics of the developed copolymer was also investigated. Moreover, the performance of the resulting LS-g-p(AA-co-Am-co-MBAm copolymer as a pH controlling agent for water-base mud was evaluated. The obtained results revealed that the newly synthesized copolymer has a remarkable pH control performance at different temperatures.
A. Zahran, Magdy; M. El-Sherbiny, Ibrahim; M. Abd El-Raheem, Hany; and M. Basuni, Moneer
"Synthesis, Characterization and Aqueous Properties of a Newly Prepared Lignin-based Graft Copolymer as a Drilling Mud Additiv,"
International Journal of Thin Film Science and Technology: Vol. 6
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Available at: https://digitalcommons.aaru.edu.jo/ijtfst/vol6/iss1/1