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- Title
Non-solvent post-modifications with volatile reagents for remarkably porous ketone functionalized polymers of intrinsic microporosity.
- Authors
Wongwilawan, Sirinapa; Nguyen, Thien S.; Nguyen, Thi Phuong Nga; Alhaji, Abdulhadi; Lim, Wonki; Hong, Yeongran; Park, Jin Su; Atilhan, Mert; Kim, Bumjoon J.; Eddaoudi, Mohamed; Yavuz, Cafer T.
- Abstract
Chemical modifications of porous materials almost always result in loss of structural integrity, porosity, solubility, or stability. Previous attempts, so far, have not allowed any promising trend to unravel, perhaps because of the complexity of porous network frameworks. But the soluble porous polymers, the polymers of intrinsic microporosity, provide an excellent platform to develop a universal strategy for effective modification of functional groups for current demands in advanced applications. Here, we report complete transformation of PIM-1 nitriles into four previously inaccessible functional groups – ketones, alcohols, imines, and hydrazones – in a single step using volatile reagents and through a counter-intuitive non-solvent approach that enables surface area preservation. The modifications are simple, scalable, reproducible, and give record surface areas for modified PIM-1s despite at times having to pass up to two consecutive post-synthetic transformations. This unconventional dual-mode strategy offers valuable directions for chemical modification of porous materials. Chemical modification of porous materials is important for realising advanced applications, but often has a negative impact on other properties. Here, the authors report a method for the modification of polymers of intrinsic porosity to introduce a range of functional groups.
- Subjects
MICROPOROSITY; POROUS polymers; KETONES; POROUS materials; SURFACE area; POLYMERS
- Publication
Nature Communications, 2023, Vol 14, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-023-37743-y