 Centre de Recherche sur les Nanomateriaux et l'Énergie | |
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 | Two-Dimensional Polymers from the Anthracene Dimer and Triptycene Motifs. | Dr. Benjamin T. KingUniversity of Nevada, Reno, Nevada 89509 USA |
Résumé : The antrip monomer, in which a central triptycene core is extended to bear three anthraceno
blades, is a versatile unit for the construction of two-dimensional polymers. The parent
hydrocarbon antrip polymerizes in the crystalline state to afford a two-dimensional polymer,
poly(antrip), whose structure was inferred from spectroscopic measurements. The
dodecakisfluoro derivative, fantrip, was polymerized in the crystalline state to give
poly(fantrip), whose structure could be determined by high-resolution single-crystal X-ray
diffraction analysis. Both poly(antrip) and poly(fantrip) could be exfoliated into single sheets.
Amphiphilic derivatives of antrip were organized and polymerized at the air/water interface
to give large (cm2) single sheets that were characterized by scanning-tunneling microscopy,
optical microscopy, electron microscopy, absorbance spectroscopy, and other methods. |
Lieu et Date du séminaire :Organisation du séminaire : NanoQAM-CQMFPavillon President Kennedy, Local PK-1140.Lundi 16 Mars 2015 à 11:00. |
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