Stabilization of solvent impregnated resins (SIRs) by coating with water soluble polymers and chemical crosslinking
Stabilization of solvent impregnated resins (SIRs) by coating with water soluble polymers and chemical crosslinking
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DOI：
10.1016/j.reactfunctpolym.2003.12.011
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发表时间：
2004-01-01
影响因子：
5.1
通讯作者：
Streat, M
中科院分区：
文献类型：
--
作者：
Trochimczuk, AW;Kabay, N;Streat, M
溶剂浸渍树脂（SIRs）通过形成由交联聚乙烯醇组成的表面涂层而得到稳定。Amberlite XAD-4和乙烯基砜分别被证明是制备含有Aliquat 336试剂的SIR中保护层的最有效基质和交联剂。衍生材料的特征在于Aliquat 336含量、聚（乙烯醇）的量、保护层中的硫元素含量以及操作稳定性。已经发现，浸渍的XAD-4的Aliquat 336负载量为0.82 mmol萃取剂/g：在用乙烯基砜交联的聚（乙烯醇）层涂覆后，这福尔斯降至0.55 mmol萃取剂/g。(C)2004 Elsevier B. V.保留所有权利。
Solvent impregnated resins (SIRs) have been stabilized by the formation of a surface coating consisting of crosslinked poly(vinyl alcohol). Amberlite XAD-4 and vinyl sulphone respectively proved to be the most effective matrix and crosslinking agent for the protective layer in the preparation of SIRs containing Aliquat 336 reagent. The derived materials have been characterized in terms of Aliquat 336 content, amount of poly(vinyl alcohol), sulphur elemental content in the protective layer as well as operational stability. It has been found that the Aliquat 336 loading of impregnated XAD-4 is 0.82 mmol of extractant/g: this falls to 0.55 mmol of extractant/g after coating with a layer of vinyl sulphone crosslinked poly(vinyl alcohol). (C) 2004 Elsevier B.V. All rights reserved.