Synthesis and Characterization of Novel Cationic Hydrophobic Benzyl Piperazinium Polyelectrolytes: Effect of Counter Ions on the Flocculation Efficiency

Abstract: Water soluble poly (4-acryloyl 1-benzyl) piperazinium polyelectrolytes with same hydrophobic moiety and variations in their counter ion were synthesized and characterized by Nuclear magnetic resonance (NMR) and Fourier transform - infrared spectroscopy (FT-IR). Thermal stability of the polyelectrolytes determined by TG and DSC analysis indicate that the polyelectrolytes are highly stable (Char yield > 90%). The effect of counter ions on flocculation efficiency is proved by zeta potential measurement and intrinsic viscosity. The polyelectrolytes show its flocculation efficiency in the order of PABPC > PABPP > PABPS? PABPN ? PABPB ? PABPPC. The optimum amount of flocculant PABPC (poly (4-acryloyl 1-benzyl) piperazinium chloride) for efficient phase separation in dispersions is 60 ppm, at pH 7 with 10 min settling time, which proved by nephelometric turbidity measurements on bentonite clay and chemical oxygen demand (COD), biological oxygen demand (BOD) on industrial waste water.

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[M. Dharani, S. Balasubramanian (2014); Synthesis and Characterization of Novel Cationic Hydrophobic Benzyl Piperazinium Polyelectrolytes: Effect of Counter Ions on the Flocculation Efficiency Int. J. of Adv. Res. 2 (2). 0] (ISSN 2320-5407). www.journalijar.com

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