Charge transport, thermodynamics, and hydrodynamics in side-chain and main-chain polymerized ionic liquids

侧链和主链聚合离子液体中的电荷传输、热力学和流体力学

• 批准号: 396060266
• 负责人: Dr. Catalin Gainaru
• 金额: --
• 依托单位: NMR-Labor
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/396060266?language=en
• 关键词: Charge; transport; thermodynamics; hydrodynamics; side

Novel materials such as polymerized ionic liquids, regarded as potential candidates for devices with high transport and storage capabilities, are nowadays in the focus of intensive research. The current project deals with the influence of morphology on charge transport, calorimetry, and particle flow in several newly synthesized polymerized ionic liquids and their structurally-related monomeric compounds. Particular attention is paid to the role played by the degree of polymerization, the type of anions, and the position of the cations within the polymeric chains. The proposed research combines results to be obtained via linear and nonlinear dielectric spectroscopy, rheology, calorimetry, and nuclear magnetic resonance. The results will complement the currently sparse literature trying to identify the theoretical and phenomenological grounds able to describe the fascinating behavior of this newly emerging class of polymers. In particular, our investigations will include polymers with cationic fragments located along the polymeric backbone, distinct from the common situation for side-groups polymerized ionic liquids. By such means one will be able to identify the dynamics of the cations with the segmental rearrangements probed by rheology or calorimetry. Combining results to be obtained from different techniques in a broad frequency range will provide the opportunity to access the individual dynamics of the polymeric matrix and that of the freely migrating charges, thus to investigate the nature of the interrelation between the mechanical stability and the ionic mobility in these materials. We believe that the results to be obtained in this project will open new venues for a deeper understanding of charge dynamics in polymeric melts in particular and highly concentrated amorphous electrolytes in general.

新型材料如聚合离子液体，被认为是具有高传输和存储能力的器件的潜在候选者，现在是深入研究的焦点。目前的项目涉及形态对电荷传输的影响，量热法，在几个新合成的聚合离子液体和它们的结构相关的单体化合物和粒子流。特别注意的是所发挥的作用的聚合度，阴离子的类型，和阳离子的位置内的聚合物链。拟议的研究结合了通过线性和非线性介电谱，流变学，量热法和核磁共振获得的结果。这些结果将补充目前稀疏的文献，试图确定能够描述这类新出现的聚合物的迷人行为的理论和现象学的理由。特别是，我们的调查将包括聚合物与阳离子片段位于沿着聚合物主链，不同于侧基聚合的离子液体的常见情况。通过这样的手段，人们将能够确定的动力学的阳离子与链段重排探测流变学或量热法。结合从不同的技术在一个广泛的频率范围内获得的结果将提供机会，访问的聚合物基体的个人动态和自由迁移的电荷，从而调查这些材料的机械稳定性和离子迁移率之间的相互关系的性质。我们相信，在这个项目中获得的结果将打开新的场地，特别是在聚合物熔体和高浓度的非晶电解质的电荷动力学的更深入的了解。

项目成果

Tuning the dynamics of imidazolium-based ionic liquids via hydrogen bonding. I. The viscous regime.

• DOI: 10.1063/5.0026144
• 发表时间: 2020-11
• 期刊: The Journal of chemical physics
• 作者: C. Thomann;P. Münzner;K. Moch;J. Jacquemin;P. Goodrich;A. Sokolov;R. Böhmer;C. Gainaru

Strongly Correlated Ion Dynamics in Plastic Ionic Crystals and Polymerized Ionic Liquids

• DOI: 10.1021/acs.jpcc.0c03297
• 发表时间: 2020-07
• 期刊: Journal of Physical Chemistry C
• 影响因子: 3.7
• 作者: I. Popov;K. Biernacka;Haijin Zhu;Frederick Nti;Luca Porcarelli;Xiaoen Wang;A. Khamzin;C. Gainaru;M. Forsyth;A. Sokolov

Structure and dynamics of short-chain polymerized ionic liquids.

• DOI: 10.1063/1.5109228
• 发表时间: 2019-07
• 期刊: The Journal of chemical physics
• 作者: F. Wieland;V. Bocharova;P. Münzner;W. Hiller;R. Sakrowski;C. Sternemann;R. Böhmer;A. Sokolov

Fundamental Limitations of Ionic Conductivity in Polymerized Ionic Liquids

• DOI: 10.1021/acs.macromol.8b01221
• 发表时间: 2018-11-13
• 期刊: MACROMOLECULES
• 影响因子: 5.5
• 作者: Stacy, Eric W.;Gainaru, Catalin P.;Sokolov, Alexei P.
• 通讯作者: Sokolov, Alexei P.

Deeply supercooled aqueous LiCl solution studied by frequency-resolved shear rheology.

通过频率分辨剪切流变学研究深度过冷的 LiCl 水溶液

• DOI: 10.1063/1.5100600
• 发表时间: 2019
• 期刊: The Journal of chemical physics
• 作者: Münzner P;Hoffmann L;Böhmer R;Gainaru C.
• 通讯作者: Gainaru C.