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相关概念视频

Ion Exchange01:17

Ion Exchange

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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Anionic Chain-Growth Polymerization: Overview01:20

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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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相关实验视频

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Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions
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在水中溶解的squaramide功能化共聚物用于阳离子识别.

Jakob D E Lane1, Gabrielle Shiels1,2, Parathan Ramamurthi2

  • 1School of Chemistry, The University of Sydney, NSW, 2006, Australia.

Macromolecular rapid communications
|September 19, 2023
PubMed
概括

新的含有方胺的聚合物提供了多功能的离子识别. 这些水溶性聚合物显示出增强的稳定性和对特定离子的选择性,克服了传统传感器的局限性.

关键词:
在ATRP中使用ATRP.这是一种H-bonding.这就是PEG PEG PEG.光传感器 光传感器在功能化后的职能化后.

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科学领域:

  • 聚合物化学 聚合物化学
  • 超分子化学 超分子化学
  • 传感技术 传感技术

背景情况:

  • 方胺是有效的离子识别图案.
  • 将squaramides纳入聚合物可以增强传感器特性.
  • 较差的水溶性往往限制了离子传感器的应用.

研究的目的:

  • 为了合成以乙烯糖醇为基础的含有 squaramide 的共聚物.
  • 研究这些新型聚合物受体的离子结合能力.
  • 开发具有更好的稳定性和选择性的水溶性离子传感器.

主要方法:

  • 聚合胺的聚合物胺的后聚合功能化为方胺.
  • 紫外线和光光谱用于离子结合分析.
  • 在水性DMSO溶液中评价离子选择性和稳定性.

主要成果:

  • 成功合成含有平方胺的共聚合物,产量很好.
  • 聚合物方胺具有类似于小分子的离子结合.
  • 对于酸盐,酸盐和硫酸盐离子具有被证明的选择性.
  • 观察到基离子对deprotonation的增强抵抗力.
  • 聚合物具有良好的水溶性,解决了传感器设计中的一个关键挑战.

结论:

  • 聚合后功能化是聚合物结合方胺的通用途径.
  • 聚合物方胺在稳定性和溶解性方面比小分子对应物具有优势.
  • 这些水溶性聚合物为离子传感应用提供了一个有前途的平台.