AI Article Synopsis
- Researchers developed a new hydrogen-bonded organic framework (HOF-50) that can be copolymerized with monomers to create a specialized hybrid membrane called polyHOF.
- This polyHOF membrane offers strong mechanical properties, durability, and an impressive temperature-sensing function that's highly sensitive, even with low amounts of certain materials.
- The innovative copolymerization method used could lead to new applications for HOF/polymer hybrid membranes across various fields.
Article Abstract
Hydrogen-bonded organic frameworks (HOFs) have shown promise in various fields; however, the construction of HOF/polymer hybrid membranes that can maintain both structural and functional integrity remains challenging. In this study, we here fabricated a new HOF (HOF-50) with reserved polymerizable allyl group via charge-assisted H-bonds between the carboxylate anion and amidinium, and subsequently copolymerized the HOF with monomers to construct a covalently bonded HOF/polymer hybrid (polyHOF) membrane. The resulting polyHOF membrane not only exhibits customizable mechanical properties and extreme stability, but also shows an exceptional ratiometric luminescent temperature-sensing function with very high sensitivity and visibility even when the lanthanide content is two orders of magnitude lower than that of the reported mixed-lanthanide metal-organic frameworks (MOFs) and lanthanide-doped covalent organic frameworks (COFs). This orthogonal postsynthesis copolymerization strategy may provide a general approach for preparing covalently connected HOF/polymer hybrid membranes for diverse applications.
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