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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and characterization of silanized silica gel-supported poly(acrylic acid) network polymer and study of its analytical application as selective extractor for lead ion
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Preparation and characterization of silanized silica gel-supported poly(acrylic acid) network polymer and study of its analytical application as selective extractor for lead ion

机译：硅烷化硅胶负载的聚（丙烯酸）网络聚合物的制备，表征及作为铅离子选择性萃取剂的分析应用研究

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摘要

A novel silanized silica gel (SSG)-supported poly(acrylic acid) network polymer (ion exchanger) has been synthesized and characterized for the study of its analytical applications. The chemical nature of the ion exchanger has been elucidated with the help of FTIR, NMR, TGA, DSC, and SEM. The immobilization of the polymer network on SSG has been studied. The optimum pH range for quantitative extraction of lead was found to be 4.5-6.0. The effects of pH and stripping agent on extraction and elution of Pb(II), respectively, have been investigated. Ion exchange and break through capacity of the exchanger have been determined at room temperature. Pb(II) has been extracted quantitatively from various environmental samples. A plausible mechanism for lead ion exchange has been suggested. (c) 2008 Wiley Periodicals, Inc.
机译：合成了一种新型硅烷化硅胶（SSG）负载的聚（丙烯酸）网络聚合物（离子交换剂），并对其特性进行了研究。借助FTIR，NMR，TGA，DSC和SEM阐明了离子交换剂的化学性质。已经研究了聚合物网络在SSG上的固定化。定量提取铅的最佳pH范围为4.5-6.0。分别研究了pH和脱模剂对Pb（II）的萃取和洗脱的影响。已经在室温下确定了交换器的离子交换和穿透能力。已从各种环境样品中定量提取了Pb（II）。已经提出了铅离子交换的合理机制。 （c）2008年Wiley Periodicals，Inc.

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