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首页> 外文期刊>Journal of Applied Polymer Science >Macroporous Chelating Resins Incorporating Heterocyclic Functional Groups via Hydrophilic Poly(ethylene oxide) Spacer Arms. II. Adsorption Properties
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Macroporous Chelating Resins Incorporating Heterocyclic Functional Groups via Hydrophilic Poly(ethylene oxide) Spacer Arms. II. Adsorption Properties

机译：通过亲水性聚（环氧乙烷）间隔臂结合杂环官能团的大孔螯合树脂。二。吸附特性

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摘要

Several new chelating resins prepared from macroporous chloromethylated polystyrene-co-divinylbenzene by either direct attachment of the heterocyclic functional groups, such as 2-aminopyridine, 2-amino-5-methylthio-1,3,4-thiadizole, 2-amino-5-ethyl-1,3,4-thiadizole, and 2-mercaptobenzothiazole, to the polymeric matrix or through different hydrophilic spacer arms were tested for the adsorption properties toward Hg2+, Ag+, Cd2+, and Pb2+ in an ammonium acetate buffer solution of pH 3.0. The results show that these resins exhibited a high affinity for Hg2+ and Ag+. The introduction of hydrophilic spacer arms between the polymeric matrix and heterocyclic functional groups resulted in an increase in the hydrophilicity and adsorption capacity of the resins. The presence of spacer arms made the kinetics of adsorption faster. The influence of the length of the spacer arm on the adsorption properties was also investigated. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 2148-2156, 2009
机译：由大孔氯甲基化聚苯乙烯-二乙烯基苯通过直接连接杂环官能团（例如2-氨基吡啶，2-氨基-5-甲硫基-1,3,4-噻二唑，2-氨基-5）制备的几种新型螯合树脂测试了-乙基1,3,4-噻二唑和2-巯基苯并噻唑在聚合物基质中或通过不同的亲水性间隔臂在pH 3.0的醋酸铵缓冲溶液中对Hg2 +，Ag +，Cd2 +和Pb2 +的吸附性能。 。结果表明，这些树脂对Hg2 +和Ag +具有很高的亲和力。在聚合物基体和杂环官能团之间引入亲水性间隔臂导致树脂的亲水性和吸附能力增加。间隔臂的存在使吸附动力学更快。还研究了间隔臂的长度对吸附性能的影响。 （C）2008 Wiley Periodicals，Inc. J Appl Polym Sci 111：2148-2156，2009年

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