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Synthesis of hydrophobically modified flocculant by aqueous dispersion polymerization and its application in oily wastewater treatment
Author(s) -
Lü Ting,
Qi Dongming,
Zhao Hongting,
Cheng Yuhua
Publication year - 2015
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23856
Subject(s) - comonomer , aqueous solution , flocculation , dispersion polymerization , materials science , copolymer , cationic polymerization , dispersion (optics) , chemical engineering , ammonium chloride , zeta potential , polymer chemistry , apparent viscosity , viscosity , polymer , organic chemistry , chemistry , composite material , nanoparticle , nanotechnology , physics , optics , engineering
A hydrophobically modified cationic flocculant, in the form of aqueous dispersion, has been successfully synthesized via dispersion copolymerization of acrylamide (AM), 2‐methylacryloylxyethyl trimethyl ammonium chloride (DMC), and methyl methacrylate (MMA) in aqueous ammonium sulfate (AS) solution. The molecular structure of the prepared copolymer was characterized by nuclear magnetic resonance spectroscopy (NMR). Meanwhile, the influence of hydrophobic comonomer (MMA) on the viscosity and microstructure of this aqueous dispersion was investigated. It was found that both the viscosity and the particle size were decreased with increasing content of MMA. Thereafter, this flocculant was used to treat the oily wastewater, and its oil removal ability was assessed under various conditions. It was demonstrated that the hydrophobically modified flocculant has obvious superiority for oily wastewater treatment. POLYM. ENG. SCI., 55:1–7, 2015. © 2014 Society of Plastics Engineers