Enhancing the resolution of 3D patterning techniques in functional soft polymers enlarges the application areas of responsive shape-changing materials, for tunable nanophotonics and nanorobotics. Thanks to the recent advances of polymer science, the palette of available materials for nanomanufacturing is becoming wider and wider—although the comprehension of their polymerization process by two-photon polymerization is still incomplete. In this work, both shrinking of the minimal polymerizable unit and a significant improvement of the mechanical stability of microstructured soft polymers, in particular of liquid crystalline networks, are demonstrated. To this aim, temperature control enhances the resolution and reduces the swelling of the polymerized structures, thus avoiding deviations of the final structure from the intended design. This fine control on the nanoscale features enables the use of soft responsive materials not only for bulky microelements, but also for high-resolution structures with more complex design.

中文翻译：

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通过温控聚合对软响应聚合物进行双光子激光写入

提高功能性软聚合物中 3D 图案化技术的分辨率，扩大了响应变形材料的应用领域，用于可调纳米光子学和纳米机器人。由于聚合物科学的最新进展，可用于纳米制造的材料范围越来越广——尽管对双光子聚合的聚合过程的理解仍然不完整。在这项工作中，证明了最小可聚合单元的收缩和微结构软聚合物（尤其是液晶网络）的机械稳定性的显着改善。为此，温度控制提高了分辨率并减少了聚合结构的溶胀，从而避免了最终结构与预期设计的偏差。