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在聚合物表面上金属有机框架的增长

Andrea Centrone¹, Ying Yang, Scott Speakman

¹Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States.

Journal of the American Chemical Society

|October 16, 2010

概括

研究人员通过微波辐射直接将MIL-47金属有机框架 (MOF) 合成到聚烯二聚合物基板上. 这一过程使得创建新型混合MOF-聚合物材料的先进应用程序.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
聚合物化学聚合物化学

背景情况:

金属有机框架 (MOF) 具有独特的特性,但将其与聚合物集成仍然具有挑战性.
聚烯 (PAN) 是一种具有功能化潜力的多功能聚合物.
在聚合物基板上MOF的直接合成可以导致先进的混合材料.

研究的目的:

开发一种方法,直接在多烯 (PAN) 基板上合成MIL-47 MOF.
研究MOF在聚合物上形成的生长机制和最佳条件.
探索这些混合材料在各种应用中的潜力.

主要方法:

现场微波辐射被用来在PAN上直接合成MIL-47.
使用扫描电子显微镜 (SEM) 和X射线衍射 (XRD) 来描述晶体的生长和结构.
福里埃变换红外光谱 (FTIR) 和X射线光电子光谱 (XPS) 用于分析表面化学变化.

主要成果:

通过微波辐射,MIL-47成功地直接合成到PAN基板上.
在PAN表面的化基转化为碳酸基对于MIL-47的生长至关重要.
MIL-47晶体随着时间的推移而生长,取代了混乱的前体阶段,表明了受控的生长过程.

结论:

这项研究表明了创造MIL-47功能化的PAN基质的可行方法.
开发的混合MOF-聚合物材料显示出用于膜分离,过和保护织品的应用的前景.
这项工作通过将MOF与聚合物结合,为设计新的功能材料开辟了道路.

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