Synthesis of poly(dodecyl methacrylate)s and their drag-reducing properties

Dodecyl methacrylate was synthesized as the intermediate monomer for the preparation of poly(dodecyl methacrylate)s, which were synthesized with emulsion polymerization techniques. The intrinsic viscosities were measured, and the viscosity-average molecular weights were calculated. Polymers of dodecyl methacrylate with ultrahigh molecular weights (viscosity-average molecular weight > 10(7)) were synthesized through orthogonal experiments. The drag-reduction properties of these polymers were studied in kerosene. The drag-reducing behavior of these polymers exhibited a strong dependence on the molecular weight and Reynolds number, and these polymers could be used as effective oil-soluble drag reducers and had good shear stabilities. (C) 2003 Wiley Periodicals, Inc.