MOF-5-Polystyrene: Direct Production from Monomer, Improved Hydrolytic Stability, and Unique Guest Adsorption
MOF-5-Polystyrene: Direct Production from Monomer, Improved Hydrolytic Stability, and Unique Guest Adsorption
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DOI：
10.1002/anie.201606926
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发表时间：
2016-09-19
影响因子：
16.6
通讯作者：
Matzger, Adam J.
中科院分区：
文献类型：
--
作者：
Gamage, Nipuni-Dhanesha H.;McDonald, Kyle A.;Matzger, Adam J.
以氧化锌为基础的金属有机骨架(MOF)具有前所未有的反应性，为制备聚合物杂化多孔固体提供了一种直接而有力的途径。这一概念以MOF-5-聚苯乙烯的生产为例，在纯苯乙烯中加热4-24小时后，将聚苯乙烯接枝并均匀分布在MOF-5晶体中。通过控制在MOF-5存在下加热苯乙烯的时间，可以微调材料的比表面积和聚苯乙烯含量。聚苯乙烯接枝显著改变了原始MOF-5的物理和化学性质，这从其独特的客体吸附性能(溶致变色染料上染率和提高的CO2容量)以及显著改善的水解稳定性中可见一斑。基于MOF-5是结构类中研究得最好的成员的事实，并且已经被工业规模化生产，这些发现可以直接用于当前的一系列应用。
An unprecedented mode of reactivity of Zn4O-based metal-organic frameworks (MOFs) offers a straightforward and powerful approach to polymer-hybridized porous solids. The concept is illustrated with the production of MOF-5-polystyrene wherein polystyrene is grafted and uniformly distributed throughout MOF-5 crystals after heating in pure styrene for 4-24 h. The surface area and polystyrene content of the material can be fine-tuned by controlling the duration of heating styrene in the presence of MOF-5. Polystyrene grafting significantly alters the physical and chemical properties of pristine MOF-5, which is evident from the unique guest adsorption properties (solvatochromic dye uptake and improved CO2 capacity) as well as the dramatically improved hydrolytic stability of composite. Based on the fact that MOF-5 is the best studied member of the structure class, and has been produced at scale by industry, these findings can be directly leveraged for a range of current applications.