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Polymer Classification: Stereospecificity01:26

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Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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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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Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
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3D打印可打印的聚合物电解质用于基于蛋白离子液体的离子导电.

Alyna Lange1, Sajal Arwish2, Aurelie Rensonnet3

  • 1Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476, Potsdam-Golm, Germany.

Chemphyschem : a European journal of chemical physics and physical chemistry
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概括
此摘要是机器生成的。

研究人员从蛋白离子液体 (PIL) 和聚合物中开发了新型离子凝 (IG). 这些材料表现出有希望的离子导电性和离子移动性,使3D打印能够用于诸如离子导电膜等应用.

关键词:
通过3D打印打印3D打印.离子导电传导 离子导电传导聚合物电解质的高分子电解质.室温离子液体和离子液体.立体石版印刷是一种立体石版印刷.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 聚合物化学 聚合物化学

背景情况:

  • 蛋白离子液体 (PILs) 为先进材料提供可调节的特性.
  • 离子凝 (IGs) 将离子液体与聚合物结合起来,产生功能固态电解质.
  • 开发具有高离子导电性的可加工离子凝对于电化学应用至关重要.

研究的目的:

  • 合成和表征基于三-n-基离子和酸盐/三酸盐离子的离子体 (IGs).
  • 研究这些IGs的热,电化学和离子传输特性.
  • 为了探索3D打印这些离子凝用于结构化应用的可行性.

主要方法:

  • 将PIL纳入聚合物矩阵,以形成离子凝.
  • 热分析 (例如TGA,DSC).
  • 电化学阻抗光谱 (EIS) 用于对离子导电性的测量.
  • 脉冲场梯度核磁共振 (PFG-NMR) 用于离子扩散研究.
  • 用于3D打印的立体石版.

主要成果:

  • 合成了一系列基于PIL的离子凝.
  • 在高温下达到10−410−3 S/cm−1的离子导电率.
  • 观察到的离子扩散系数约为10−11 m2/s.
  • 通过立体立体印刷成功地展示了具有70%重量%IL含量的离子凝的3D打印.

结论:

  • 开发的离子凝具有良好的热和电化学稳定性.
  • 这些离子凝显示出显著的离子导电性和离子流动性.
  • 能够3D打印这些离子凝的能力为创建结构化,离子导电材料的途径开辟了先进的应用,如膜.