US-Turkey Cooperative Research: Calixarene Based Receptors for Site Reclamation by the Removal of Toxic Heavy Metals

0111170 Roundhill描述：该项目支持D.M.博士和Roundhill，化学系，得克萨斯州拉伯克，得克萨斯州理工大学和Mustafa Yilmaz博士，化学系，Selcuk大学，科尼亚，土耳其。 合作的重点是合成新的化学改性杯芳烃，并将其用作重金属离子的液-液相萃取剂。 特别地，将靶向目前引起环境问题的金属离子。 研究人员计划研究基于杯芳烃的受体，用于重金属清理应用。 这项工作包括产生新的离子载体聚合物系统与特定的结合策略Cs+和选定的阳离子和阴离子。 具体地，将合成称为杯冠-6聚合物的杯芳烃并将其掺入共聚物树脂中。 将对由此得到的材料进行表征，并将其用于液-液萃取，其中分析水相金属的金属和萃取剂的等体积混合物。 将通过分批色谱柱法测定固-液浸提。 这项工作计划包括三个连续的组成部分：离子载体的合成、离子载体的特性鉴定和评估离子载体提取金属离子能力的提取研究。 适用范围：该项目支持两位拥有互补专业知识和资源的知名科学家之间的合作，以调查重要的材料和环境问题。有大量的环境影响的研究，因为它可能会导致新的和改进的方法来净化重金属污染的网站。 这两个小组都独立地研究了杯芳烃对金属离子的络合作用，并且都将使用杯芳烃改性聚合物对重金属的液相萃取剂进行研究。 Yilmaz博士是一位合成有机化学家，在杯芳烃化学方面拥有丰富的经验，Roundhill博士是一位无机化学家，在重金属离子的络合化学方面拥有相当丰富的知识。 拟议的合作努力将建立更强有力的国际联系，并提供科学效益。 该项目符合INT的目标，即支持在共同感兴趣的领域进行合作研究。

0111170RoundhillDescription: This project supports a collaborative project between Dr. D.M. Roundhill, Department of Chemistry, Texas Tech University, Lubbock, Texas and Dr. Mustafa Yilmaz, Department of Chemistry, Selcuk University, Konya, Turkey. The focus of the collaboration is the synthesis of new chemically modified calixarenes, and their use as liquid-liquid phase extractants for heavy metal ions. In particular, metal ions will be targeted that are presently causing environmental problems. The researchers plan to study calixarene-based receptors designed for heavy metal clean up applications. The work includes the generation of new ionophore polymer systems with specific binding strategies for Cs+ and selected cations and anions. Specifically the calixarene known as calixcrown-6 polymer will be synthesized and incorporated into copolymer resins. The material thus derived will be characterized, and will be used in liquid-liquid extractions with equal volume mixtures of metal and extractant analyzed for aqueous phase metals. The solid-liquid extraction will be determined by batchwise column methods. The plan of work involves three sequential components: synthesis of ionophores, characterization of ionophores and extraction studies that will assess the ability of the ionophores to extract metal ions. Scope: The project supports collaboration between two well-known scientists who have complementary expertise and resources to investigate an important material and environmental problem. There are substantial environmental implications of the research, as it may lead to new and improved means for decontamination of heavy metal polluted sites. Both groups have independently studied the complexation of metal ions by calixarenes and both will conduct research on liquid phase extractants of heavy metals with the use of calixarene modified polymers. Dr. Yilmaz is a synthetic organic chemist with extensive experience in calixarene chemistry, and Dr. Roundhill is an inorganic chemist who has considerable knowledge of the complexation chemistry of heavy metal ions. The proposed collaborative effort will establish stronger international ties and provide scientific benefits. This project meets the INT objective of supporting collaborative research in areas of mutual interest.