Götz Stefan, Zechel Stefan, Hager Martin D, Schubert Ulrich S
Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldstr. 10, 07743 Jena, Germany.
Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
Polymers (Basel). 2020 Apr 6;12(4):838. doi: 10.3390/polym12040838.
Metallopolymers represent an interesting combination of inorganic metal complexes and polymers resulting in a variety of outstanding properties and applications. One field of interest are stimuli-responsive materials and, in particular, self-healing polymers. These systems could be achieved by the incorporation of terpyridine-lanthanoid complexes of Eu (III), Tb (III), and Dy (III) in the side chains of well-defined copolymers, which were prepared applying the reversible addition fragmentation chain-transfer (RAFT)-polymerization technique. The metal complexes crosslink the polymer chains in order to form reversible supramolecular networks. These dynamics enable the self-healing behavior. The information on composition, reversibility, and stability of the complexes was obtained by isothermal titration calorimetry (ITC). Moreover, self-healing experiments were performed by using 3D-microscopy and indentation.
金属聚合物是无机金属配合物与聚合物的有趣结合，具有多种优异性能和应用。一个受关注的领域是刺激响应材料，特别是自愈聚合物。通过将铕（III）、铽（III）和镝（III）的三联吡啶镧系配合物引入到明确的共聚物侧链中，可以实现这些体系，这些共聚物是采用可逆加成-断裂链转移（RAFT）聚合技术制备的。金属配合物使聚合物链交联以形成可逆的超分子网络。这些动力学特性实现了自愈行为。通过等温滴定量热法（ITC）获得了配合物的组成、可逆性和稳定性信息。此外，还使用三维显微镜和压痕进行了自愈实验。
