TY - DATA T1 - Disubstituted Polyacetylene Brushes Grown via Surface-Directed Tungsten-Catalyzed Polymerization PY - 2007/07/31 AU - Sarav B. Jhaveri AU - Kenneth R. Carter UR - https://acs.figshare.com/articles/journal_contribution/Disubstituted_Polyacetylene_Brushes_Grown_via_Surface_Directed_Tungsten_Catalyzed_Polymerization/2993884 DO - 10.1021/la700649w.s001 L4 - https://ndownloader.figshare.com/files/4694827 KW - microwave irradiation KW - quartz surfaces KW - substrate surfaces KW - Disubstituted Polyacetylene Brushes Grown KW - functionalized surfaces KW - film thickness measurements KW - fluorescence spectrometer measurements KW - Surface polymerization KW - force microscopy KW - surface contact angle measurements KW - 30 min KW - modification process KW - novel way KW - silicon substrate KW - terminal alkyne N2 - Disubstituted polyacetylene brushes were grown from modified silicon and quartz surfaces using a transition metal-catalyzed polymerization technique employing tungsten hexachloride/tetraphenyl tin (WCl6/Ph4Sn). The substrate surfaces were initially functionalized with terminal alkyne functional groups by using an alkyne-functionalized silane, O-(propagyloxy)-N-(triethoxysilylpropyl) urethane, as a surface coupling agent. Surface polymerization of 5-decyne under microwave irradiation at 150 °C for 30 min was performed on the functional surfaces to produce surfaces consisting of grafted poly(1,2-dibutylacetylene) brushes. The alkyne-functionalized and polymer-coated surfaces were characterized using surface contact angle measurements, film thickness measurements, atomic force microscopy, and X-ray photoelectron spectroscopy, and fluorescence spectrometer measurements were performed to analyze the surfaces at each step of the modification process. This simple technique demonstrates a novel way of synthesizing a poly(1,2-dibutylacetylene) brush layer on silicon substrate, and it has future potential in the fabrication of selectively functionalized surfaces on the nanoscale via this new synthetic approach. ER -