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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of Novel Twin-Tailed Hydrophobically Associated Copolymers and Their Applications to Cr(III) Removal from Aqueous Solutions
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Synthesis and Characterization of Novel Twin-Tailed Hydrophobically Associated Copolymers and Their Applications to Cr(III) Removal from Aqueous Solutions

机译：新型双尾疏水缔合共聚物的合成，表征及其在水溶液中脱除Cr（III）中的应用

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Water pollution is one of the most serious environmental problems facing society. The objective of this study was to provide an efficient and inexpensive way of removing Cr(III) from polluted water. Novel twin-tailed hydrophobically associating copolymers (PAAD) were prepared by micellar copolymerization of acrylamide (AM) and sodium 2-acrylamido-2-methylpropane sulfonate with N,N-dibutylmethacrylamide in an aqueous solution. The PAAD series, comprising copolymers of different molecular weights (ranged from 1.42 to 1.78 × 10~6 g/mol) and compositions was characterized by gel permeation chromatography-multiangle laser light scattering, ~1H NMR and FTIR spectroscopy, and elemental analysis. The surface activity, morphology, and aggregation properties of PAAD samples were measured by surface tension and dynamic light scattering. A schematic representation of the formation of Cr(OH)_3 and its precipitation using PAAD samples as coagulant aid is discussed in the article. In addition, the Cr(OH)_3-copolymer interaction, as investigated by precipitation experiments, demonstrated that these copolymers have good Cr(OH)_3 binding capacity and potential as coagulant aid for the removal of Cr(III) from polluted water. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41028.
机译：水污染是社会面临的最严重的环境问题之一。这项研究的目的是提供一种从污染水中去除六价铬的有效而廉价的方法。通过水溶液中丙烯酰胺（AM）和2-丙烯酰胺基-2-甲基丙烷磺酸钠与N，N-二丁基甲基丙烯酰胺的胶束共聚制备了新型双尾疏水缔合共聚物（PAAD）。通过凝胶渗透色谱-多角度激光散射，〜1H NMR和FTIR光谱以及元素分析来表征PAAD系列，该共聚物包含不同分子量（范围为1.42至1.78×10〜6 g / mol）的共聚物和组成。通过表面张力和动态光散射测量PAAD样品的表面活性，形态和聚集性质。本文讨论了使用PAAD样品作为助凝剂时Cr（OH）_3的形成及其沉淀的示意图。此外，通过沉淀实验研究表明，Cr（OH）_3-共聚物之间的相互作用表明，这些共聚物具有良好的Cr（OH）_3结合能力，并且具有作为助凝剂从污水中去除Cr（III）的潜力。 VC 2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2014，131，41028。

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