Synthesis and Solution Properties of Zwitterionic Copolymer of Acrylamide with 3-((2-Acrylamido)dimethylammonio)propanesulfonate
作者： Hui Xiao , Jing Hu , Shuailin Jin , Rui Hai Li
DOI: 10.5012/BKCS.2013.34.9.2616
关键词:
摘要: A novel zwitterionic monomer 3-[(2-acrylamido)dimethylammonio]propanesulfonate (DMADAS) was designed and synthesized in this study. Then it polymerized with acrylamide (AM) by free radical polymerization 0.5 mol/L NaCl solution ammonium persulfate ((NH4)2S2O8) sodium sulfate (NaHSO3) as initiator. The structure composition of DMADAS acrylamide-3-[(2-acrylamido)dimethylammonio]propanesulfonate copolymer (P-AM-DMADAS) were characterized FT-IR spectroscopy, 1 H NMR elemental analyses. Isoelectric point (IEP) P-AM-DMADAS tested nanoparticle size potential analyzer. Solution properties studied reduced viscosity. Antipolyelectrolyte behavior observed found to be enhanced increasing content copolymer. results showed that the viscosity is 5.472 dl/g pure water. Electrolyte added, which weakened mutual attraction between sulfonic acid group quaternary group. conformation became loose, led increase ability monovalent divalent cation influencing obeyed following sequence: Li + SO3 2� ≈ SO4 .
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