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化学武器制剂的选择性捕获并中和它们的副产物通过多孔框架呈现自我放大和自我调节活性遏制

Selective Capture of CWAs and Containment of Their Neutralization Byproducts by Porous Frameworks Presenting Self-Amplifying and Self-Regulating Activities.
作者:Lee, D.Yaghi, O. 加工时间:2014-08-08 信息来源:科技报告(AD) 索取原文[31 页]
关键词:学战剂;中和;多孔材料;高分子材料;化学剂仿制品
摘 要:We have designed and synthesized highly porous COFs and MOFs as functional architectures that are capable of capturing volatile TICs. In parallel, we have explored novel crystalline porous materials that have reactive sites and functionalities, which can be controlled by an external stimulus. We demonstrated that reticular chemistry facilitates the design and synthesis of new robust COFs, as well as isoreticular covalent functionalization and metallation. In addition, a MOF with self-contained photo- active switches was prepared. As stimuli-responsive functional molecules that can release multiple copies of nucleophilic agents to combat electrophilic CWAs, we have developed linear/branched oligoether/esters. Upon cleavage of a Si-O bond, fast and repetitive QM rearrangement occur along the molecular backbone to release phenoxide derivatives that detoxify OP agent simluant. The progress of such reaction could be visually monitored by a large enhancement in the fluorescence intensity, which allows for detection and detoxification achieved by a single integrated molecular system. These functional modules could be grafted onto chemically modified inorganic surfaces. Shape-persistent conducting polymers were also prepared from borasiloxane cage molecules. The light-absorbing properties and electrical conductivities of these materials change in a reversible fashion upon exposure to volatile TICs.
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