Luminescent polymers that are dynamic in reversible response to external stimuli are of profound interest for the development of advanced optical devices and sensors. Here, we fabricate a new class of transparent poly(urea-urethane) containing malonate moieties through simple one-pot polycondensation. When blended with different amounts of europium ions, the resultant polymer complexes show a tunable broad spectrum of mechanical properties with their modulus adjusted from 5 MPa to 60 MPa. In the meantime, the incorporation of europium endows the metallo-supramolecular polymers with fluorescence that can reversibly respond to organic solvents like acetylacetone/triethylamine as well as temperature due to the formation of dynamic europium-malonate coordination. Given that each optical or sensor field has its own requirement for materials’ mechanical properties, we believe therefore our designed stimuli-responsive luminescent polymers with adaptable mechanical properties show great potential in the applications.

在对外部刺激的可逆响应中具有动态性的发光聚合物对于开发先进的光学设备和传感器具有重大意义。在这里，我们通过简单的一锅式缩聚反应制备了一种新型的包含丙二酸酯部分的透明聚（脲-尿烷）。当与不同数量的euro离子混合时，所得的聚合物配合物显示出可调的广谱机械性能，其模量在5 MPa至60 MPa之间调节。同时，掺入s使金属-超分子聚合物具有荧光，由于形成动态的-丙二酸coordination络合物，该荧光可以可逆地响应有机溶剂（如乙酰丙酮/三乙胺）以及温度。