• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers >Synthesis and Characterization of Polystyrene-Supported Piperazine-Substituted Triazoles by CuAAC and First Evaluation for Metal Ion Extraction
【24h】

Synthesis and Characterization of Polystyrene-Supported Piperazine-Substituted Triazoles by CuAAC and First Evaluation for Metal Ion Extraction

机译：CuAAC合成，表征聚苯乙烯负载的哌嗪取代的三唑及其对金属离子萃取的初步评价

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The goal of this work was to synthesize substituted polystyrene for metal extraction and/or depollution by introduction of substituted piperazines as chelatants starting from Merrifield polymer. After transformation of Merrifield’s resin in azidomethyl polystyrene, click-chemistry using copper (I)-catalyzed Huisgen’s reaction (CuAAC) was performed to prepare different polymers grafted with 1,4-triazoles bearing the piperazines, containing an alkyne as the other counterpart in the CuAAC. The polymers were then first tested for their efficiency to remove various metal ions from neutral aqueous solutions (Fe 3+ , Ni 2+ , Cu 2+ , Zn 2+ and Pb 2+ ). The polymers were found to extract Ni 2+ and Zn 2+ with low efficiencies ≤40%. For Fe 3+ and Cu 2+ , the average extraction was around 80%, and for Pb 2+ around 50%. The global selectivity for these polymers was found to be in the order of Fe 3+ ≥ Cu 2+ > Pb 2+ Ni 2+ > Zn 2+ .
机译：这项工作的目的是通过从Merrifield聚合物开始引入取代的哌嗪作为螯合剂来合成用于金属萃取和/或脱污染的取代的聚苯乙烯。在将Merrifield的树脂转化为叠氮基甲基聚苯乙烯后，使用铜（I）催化的惠斯根反应（CuAAC）进行点击化学反应，以制备接枝了带有哌嗪的1,4-三唑的接枝不同聚合物，其中炔烃是另一种对应物。 CuAAC。然后首先测试聚合物从中性水溶液（Fe 3+，Ni 2+，Cu 2+，Zn 2+和Pb 2+）中去除各种金属离子的效率。发现该聚合物以≤40％的低效率提取Ni 2+和Zn 2+。对于Fe 3+和Cu 2+，平均萃取率约为80％，而Pb 2+的平均萃取率约为50％。发现这些聚合物的总选择性为Fe 3+≥Cu 2+> Pb 2+ Ni 2+> Zn 2+。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号