Microscopic understanding of the structure and dynamics of self-healing macromolecules

FZJ的贡献旨在从微观上理解新的聚合物体系，这些体系是通过氢键进行可逆交联的。这些都是设计新的自我修复特性的重要因素，这些特性在分子水平上直接和自主地抵消损伤过程。只有通过中子散射和补充的实验室宏观技术相结合，才能从微观上理解自我修复过程。由于中子散射对两者都非常敏感，相关的长度尺度和时间尺度、与可逆氢键本身的特征有关的局部和全局结构和动力学以及它对出现的新的弹性宏观性质的影响将分别被讨论。在将要研究的体系中，活性端基和基本单体化学将沿着影响键能的极性方案而变化。考虑到氢键实体的相似性，预期的结果也适用于对DFG Call的并行建议的基本化学，并允许推广并最终控制设计新的自适应高性能复合材料。

The contribution of FZJ aims at a microscopic understanding of new polymeric systems which are predicated on reversible crosslinking through hydrogen bonding. These are prominent key actors for the design of novel self-healing properties which counteract damage processes directly and autonomously on the molecular level. A microscopic understanding of the self-healing process is feasible only by a combination of neutron scattering and complementary laboratory macroscopic techniques. Due to the exquisite sensitivity of neutron scattering to both, relevant length scales and time scales, local and global structure and dynamics relating to the character of reversible hydrogen-bonding itself and its implication for emerging new elastic macroscopic properties respectively will be addressed. In the systems to be investigated the reactive end groups and basic monomer chemistry will be varied along a polarity scheme which affects the bonding energy. Given the similarity of the H-bonding entities, the expected results apply also to the basic chemistry of parallel proposals to this DFG call and allow generalization and finally controlled design of new adaptive high-performance composites.