Synthetic Control of the Pore Dimension and Surface Area in Conjugated Microporous Polymer and Copolymer Networks

Jia-Xing Jiang, Fabing Su, Abbie Trewin, Colin D. Wood, Hongjun Niu, James T. A. Jones, Yaroslav Z. Khimyak, Andrew I. Cooper

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Abstract

A series of rigid microporous poly(aryleneethynylene) (PAE) networks was synthesized by Sonogashira-Hagihara coupling chemistry. PAEs with apparent Brunauer-Emmet-Teller surface areas of more than 1000 m2/g were produced. The materials were found to have very good chemical and thermal stability and retention of microporosity under a variety of conditions. It was shown that physical properties such as micropore size, surface area, and hydrogen uptake could be controlled in a “quantized” fashion by varying the monomer strut length, as for metal-organic and covalent organic frameworks, even though the networks were amorphous in nature. For the first time, it was demonstrated that these properties can also be fine-tuned in a continuous manner via statistical copolymerization of monomer struts with differing lengths. This provides an unprecedented degree of direct synthetic control over micropore properties in an organic network.
Original languageEnglish
Pages (from-to)7710-7720
Number of pages11
JournalJournal of the American Chemical Society
Volume130
Issue number24
DOIs
Publication statusPublished - 18 Jun 2008

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