Polyacetylene-type networks prepared by coordination polymerization of diethynylarenes: new type of microporous organic polymers

Macromol Rapid Commun. 2012 Jan;33(2):158-63. doi: 10.1002/marc.201100599. Epub 2011 Nov 22.

Abstract

Microporous organic polymers (MOP) of a new type have been synthesised in high yields by a simple coordination polymerization of 1,3-diethynylbenzene, 1,4-diethynylbenzene and 4,4'-diethynylbiphenyl catalysed by [Rh(cod)acac] and [Rh(nbd)acac] complexes. The new MOPs are non-swellable polyacetylene-type conjugated networks consisting of ethynylaryl-substituted polyene main chains that are crosslinked by arylene linkers. Prepared MOP samples have a mole fraction of branching units (by (13)C CP/MAS NMR) from 0.30 to 0.47 and exhibit the BET (Brunaer-Emmett-Teller) surface up to 809 m(2) g(-1) and hydrogen uptake up to 0.69 wt% (77 K, H2 pressure 750 torr).

Keywords: adsorption; conjugated polymers; hydrogen storage; microporous organic polymers; polyacetylenes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylene / analogs & derivatives*
  • Acetylene / chemistry
  • Benzene Derivatives / chemistry*
  • Catalysis
  • Hydrogen / chemistry*
  • Polyynes / chemistry*
  • Porosity

Substances

  • 1,4-diethynylbenzene
  • Benzene Derivatives
  • Polyynes
  • Hydrogen
  • Acetylene