期刊
JOURNAL OF COORDINATION CHEMISTRY
卷 74, 期 1-3, 页码 178-189出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2021.1876852
关键词
MOF; polymer inorganic hybrid; composite; porous materials; ligand exchange
资金
- University at Buffalo
- National Science Foundation [DMR-1709371]
- Department of Energy [DEFE0031736]
- NYSTAR High Tech Matching Grant [C180143]
A series of new polymer-inorganic composites have been synthesized using a postsynthetic ligand exchange strategy from poly(amic acid) and various M-MOF-74 frameworks. This method has shown versatility in exchanging ligands with several additional metal ions and frameworks containing 2,5-dihydroxyterephthalate ligands, expanding the application of polymer-ligand exchange hybridization.
A series of new polymer-inorganic composites has been synthesized from poly(amic acid) (PAA) and various M-MOF-74 (M = Mg, Mn, Co, Ni, Zn) frameworks using a postsynthetic ligand exchange strategy, wherein ligand moieties built into the PAA backbone are exchanged with MOF-bound ligands. The reaction is monitored by UV-vis spectroscopy in order to compare exchange rates for different metal ions, and the resulting composites are characterized by powder X-ray diffraction and scanning electron microscopy. This method of polymer-ligand exchange (PLE) hybridization has only been previously demonstrated using Zn2+-carboxylate and Zn2+-imidazolate frameworks; therefore, this work further reveals the versatility of PLE by showing that exchange is possible for several additional metal ions, as well as frameworks containing 2,5-dihydroxyterephthalate ligands.
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