Mann Abigail K, Lisboa Lynn S, Tonkin Samuel J, Gascooke Jason R, Chalker Justin M, Gibson Christopher T
Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, South Australia, 5042, Australia.
College of Science and Engineering, Flinders University, Bedford Park, South Australia, 5042, Australia.
Angew Chem Int Ed Engl. 2024 Jun 3;63(23):e202404802. doi: 10.1002/anie.202404802. Epub 2024 Apr 9.
The modification of polymer surfaces using laser light is important for many applications in the nano-, bio- and chemical sciences. Such capabilities have supported advances in biomedical devices, electronics, information storage, microfluidics, and other applications. In most cases, these modifications require high power lasers that are expensive and require specialized equipment and facilities to minimize risk of hazardous radiation. Additionally, polymer systems that can be easily modified by lasers are often complex and costly to prepare. In this report, these challenges are addressed with the discovery of low-cost sulfur copolymers that can be rapidly modified with lasers emitting low-power infrared and visible light. The featured copolymers are made from elemental sulfur and either cyclopentadiene or dicyclopentadiene. Using a suite of lasers with discreet wavelengths (532, 638 and 786 nm) and powers, a variety of surface modifications could be made on the polymers such as controlled swelling or etching via ablation. The facile synthesis and laser modification of these polymer systems were exploited in applications such as direct laser lithography and erasable information storage.
利用激光对聚合物表面进行改性，在纳米科学、生物科学和化学科学的诸多应用中都具有重要意义。这种能力推动了生物医学设备、电子学、信息存储、微流体以及其他应用领域的发展。在大多数情况下，这些改性需要高功率激光器，而高功率激光器价格昂贵，且需要专门的设备和设施来将有害辐射风险降至最低。此外，易于通过激光改性的聚合物体系通常制备起来复杂且成本高昂。在本报告中，通过发现可被发射低功率红外光和可见光的激光快速改性的低成本硫共聚物，解决了这些挑战。这些特色共聚物由元素硫与环戊二烯或二环戊二烯制成。使用一组具有不同波长（532、638和786 nm）和功率的激光器，可对聚合物进行多种表面改性，如通过烧蚀实现可控溶胀或蚀刻。这些聚合物体系的简便合成和激光改性被应用于直接激光光刻和可擦除信息存储等领域。
