Long-hypothesized 'next generation wonder material' created for first time
-hybridized carbon is an irreversible reaction and generally fails to provide bulk polymeric materials with low defect densities. On the contrary, alkyne metathesis is a reversible reaction and proceeds through either a non-productive pathway, in which the end groups are simply exchanged without forming any new chemical structures, or through a productive pathway, in which new products are formed, usually along with small alkyne by-products .
We selected 1,2,3,4,5,6-hexapropynylbenzene as the major monomer for the γ-graphyne synthesis. Alkyne metathesis of HPB produced 2-butyne as the by-product in the productive pathway. The low boiling point of 2-butyne allows its easy removal under a reduced pressure, which promotes the polymer growth.
France Dernières Nouvelles, France Actualités
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