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yexuqing木虫之王 (文学泰斗)
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A two-dimensional polymer prepared by organic synthesis
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Article preview View full access options Nature Chemistry | Article A two-dimensional polymer prepared by organic synthesis Patrick Kissel,1 Rolf Erni,2 W. Bernd Schweizer,3 Marta D. Rossell,4 Benjamin T. King,5 Thomas Bauer,1 Stephan Götzinger,6 A. Dieter Schlüter1 & Junji Sakamoto1 Affiliations Contributions Corresponding author Journal name: Nature Chemistry Year published: (2012) DOI: doi:10.1038/nchem.1265 Received 30 September 2011 Accepted 04 January 2012 Published online 05 February 2012 Highlighting tool CompoundsUpdate Highlighting Abstract Abstract Author information Supplementary information Article toolsPrint Download citation Order reprints Rights and permissions Share/bookmark Connotea Cite U Like Delicious Digg Synthetic polymers are widely used materials, as attested by a production of more than 200 millions of tons per year, and are typically composed of linear repeat units. They may also be branched or irregularly crosslinked. Here, we introduce a two-dimensional polymer with internal periodicity composed of areal repeat units. This is an extension of Staudinger's polymerization concept (to form macromolecules by covalently linking repeat units together), but in two dimensions. A well-known example of such a two-dimensional polymer is graphene, but its thermolytic synthesis precludes molecular design on demand. Here, we have rationally synthesized an ordered, non-equilibrium two-dimensional polymer far beyond molecular dimensions. The procedure includes the crystallization of a specifically designed photoreactive monomer into a layered structure, a photo-polymerization step within the crystal and a solvent-induced delamination step that isolates individual two-dimensional polymers as free-standing, monolayered molecular sheets. http://www.nature.com/nchem/jour ... ull/nchem.1265.html |
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