A hydrophobic ionic liquid1-methacryloyloxypropyl-3-decylimidazolium chlorideMAPD-Cl was synthesized. The product synthesied was characterized by IR, proved to be thetarget product..The homopolymer (PMAPD-Cl) of the hydrophobic ionic liquid were synthesized with(NH4)2S2O8-NaHSO3redox initiation and AIBA as iniator. The product synthesied wascharacterized by IR, proved to be the target product. Synthesis conditions were optimizedwith single factor optimization and response surface methodology (RSM). The best conditionsare as follows: mass fraction of monomer50%, reaction temperature39℃, mass fraction ofinitiator((NH4)2S2O4-NaHSO3)0.02%, reaction time10h, mass fraction of initiator(AIBA)0.06%Cationic polyacrylamide P(AM/MAPD-Cl) was prepared by the radicalcopolymerization of acrylamide (AM) and1-methacryloyloxypropyl-3-decylimidazoliumchloride (MAPD-Cl) The product synthesied was characterized by IR, proved to be the targetproduct. Synthesis conditions were optimized with single factor optimization and responsesurface methodology (RSM). Based on the results of single factor optimization, mass fractionof monomer, reaction temperature, initiator concentration, and time were obtained, and theeffects of such factors as mass fraction of monomer, reaction temperature, initiatorconcentration were studied with RSM. A mathematic model of the intrinsic viscosity forpolymer was established,and the best conditions are as follows: mass fraction of monomer25.41%, reaction temperature26℃, mass fraction of initiator((NH4)2S2O4-NaHSO3)0.03%,reaction time10h. The obtained optimum flocculating conditions were that the pH of thewaste water was6.0, mass fation of the cationic was30%, and the dosage was2mg/L.Underthe above conditions, the transmittance of visible light for the waste water after treatment was98.5%, and the flocculating rate was98.3%.Amphoteric polyacrylamide P(AM/NaAMPS/MAPD-Cl) was prepared by the radicalcopolymerization of acrylamide (AM), homemade1-methacryloyloxypropyl-3-decy-limidazolium chloride (MAPD-Cl) and sodium2-acrylam ido-2-methyl propanesul phonate(NaAMPS) and the preparation process was examined, using the compound initiator(whichis comprised by the redox initiator((NH4)2S2O4-NaHSO3) and azo type initiator(AIBA)). Theproduct of synthesis was characterized by IR, proved to be the target product.Synthesis conditions were optimized with single factor optimization and responsesurface methodology (RSM). The best conditions are as follows: mass fraction of MAPD-Cl7.72%, reaction temperature32℃, m(AIBA):m((NH4)2S2O4-NaHSO3)=3.13:1, reaction time8h, total monomer concentration25%. And intrinsic viscosity increased with increasing the concentration of salts. The copolymers exhibite typical antipolyelectrolyte behavior.When thesame cations in the solvent, the influence degree that price anions to the copolymer viscositysuccessively is CO32->SO32->SO42->Br->Cl-. When the same anions in the solvent, thesolvation function of divalent cations Mg2+and Ca2+on copolymer is larger than that ofmonovalent cation Na+. |