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Synthetic control of the pore dimension and surface area in conjugated microporous polymer and copolymer networks

Research output: Contribution to journalJournal article

Published

  • Jia-Xing Jiang
  • Fabing Su
  • Abbie Trewin
  • Colin D. Wood
  • Hongjun Niu
  • James T. A. Jones
  • Yaroslav Z. Khimyak
  • Andrew I. Cooper
Journal publication date18/06/2008
JournalJournal of the American Chemical Society
Journal number24
Volume130
Number of pages11
Pages7710-7720
Original languageEnglish

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 m(2)/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.