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

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。当前项目涉及形态对几种新合成的聚合离子液体及其结构相关的单体化合物中的电荷传输、量热和颗粒流动的影响。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。

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.