Perera Sachini D, Johnson Rebecca M, Pawle Robert, Elliott John, Tran Tien M, Gonzalez Jasmine, Huffstetler Jesse, Ayers Lyndsay C, Ganesh Vijayalakshmi, Senarathna Milinda C, Cortés-Guzmán Karen P, Dube Soumik, Springfield Samantha, Hancock Lawrence F, Lund Benjamin R, Smaldone Ronald A
Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States.
Akita Innovations LLC, 267 Boston Rd., Suite 11, North Billerica, Massachusetts 01862, United States.
ACS Appl Mater Interfaces. 2024 Feb 28;16(8):10795-10804. doi: 10.1021/acsami.3c19446. Epub 2024 Feb 20.
Metal-organic frameworks (MOFs) have captured the imagination of researchers for their highly tunable properties and many potential applications, including as catalysts for a variety of transformations. Even though MOFs possess significant potential, the challenges associated with processing of these crystalline powders into usable form factors while retaining their functional properties limit their end use applications. Herein, we introduce a new approach to construct MOF-polymer composites via 3D photoprinting to overcome these limitations. We designed photoresin composite formulations that use polymerization-induced phase separation to cause the MOF catalysts to migrate to the surface of the printed material, where they are accessible to substrates such as chemical warfare agents. Using our approach, MOF-polymer composites can be fabricated into nearly any shape or architecture while retaining both the excellent catalytic activity at 10 wt % loading of the MOF components and the flexible, elastomeric mechanical properties of a polymer.
金属有机框架材料（MOFs）因其高度可调节的性质以及诸多潜在应用，包括作为各种转化反应的催化剂，而引起了研究人员的关注。尽管MOFs具有巨大潜力，但将这些结晶粉末加工成可用形状因子并同时保留其功能特性所面临的挑战限制了它们的最终应用。在此，我们引入一种通过3D光打印构建MOF-聚合物复合材料的新方法，以克服这些限制。我们设计了光树脂复合配方，利用聚合诱导相分离使MOF催化剂迁移到打印材料的表面，在那里它们可与诸如化学战剂等底物接触。使用我们的方法，MOF-聚合物复合材料可以被制造成为几乎任何形状或结构，同时在MOF组分负载量为10 wt%时既保留优异的催化活性又保留聚合物的柔性、弹性机械性能。
