Catalyst-free Preparation of Melamine-Based Microporous Polymer Networks through Schiff Base Chemistry

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• 作者：Matthias Georg Schwab ; Birgit Fassbender ; Hans Wolfgang Spiess ; Arne Thomas ; Xinliang Feng ; Klaus Mllen
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：June 3, 2009
• 年：2009
• 卷：131
• 期：21
• 页码：7216-7217
• 全文大小：132K
• 年卷期：v.131,no.21(June 3, 2009)
• ISSN：1520-5126

文摘

Recently, the synthesis of organic materials with high porosity has received considerable scientific interest, and various chemical approaches have been applied to the build-up of microporous polymer networks. In a novel catalyst-free process using Schiff base chemistry, melamine has been reacted with various di- and trivalent aldehydes to form a series of highly cross-linked microporous aminal networks with BET surface areas as high as 1377 m²/g and a NLDFT micropore volume of up to 0.41 cm³/g. It was shown that through the proper choice of the starting compounds the porosity of the final material can be fine-tuned. The materials contain up to 40 wt % of nitrogen and were also found to exhibit high thermal stability. Owing to the cheap and abundant monomers used in this study these networks are promising candidates for large-scale applications in gas storage, gas separation, catalysis, and sensing.