Browsing Meeting minutes, announcements and publications from RIT Colleges by Author "Takacs, Gerald"

Now showing items 1-20 of 23

    • Adhesion of copper to poly(tetrafluoroethylene) surfaces modified with vacuum UV radiation from helium arc plasma 

      Zheng, S.; Entenberg, Alan; Takacs, Gerald; Egitto, F.; Matienzo, L. (Springer-Verlag: Journal of Adhesion Science and Technology, 2003-12)
      Poly(tetrafluoroethylene) (PTFE) film surfaces were exposed to vacuum UV (VUV) radiation from He dc arc plasmas that were made to rotate inside a graphite tube by the application of an auxiliary magnetic field. The films ...

    • Adhesion of copper to poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) surfaces modified by vacuum UV photo-oxidation downstream from Ar microwave plasma 

      Dasilva, W.; Entenberg, Alan; Kahn, B.; Debies, Thomas; Takacs, Gerald (Springer-Verlag: Journal of Adhesion Science and Technology, 2004-12)
      Poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) surfaces were exposed to vacuum UV (VUV) photo-oxidation downstream from Ar microwave plasma. The modified surfaces showed the following: (1) an improvement in wettability ...

    • Adhesion of copper to teflon surfaces modified by vacuum UV photo-oxidation downstream from Ar microwave plasma 

      Dasilva, W.; Entenberg, Alan; Kahn, B.; Debies, Thomas; Takacs, Gerald (The American Chemical Society: Polymeric Materials Science and Engineering, 2004)
      Fluoropolymers, like Teflon(r) PTFE (polytetrafluoroethylene) and FEP (fluorinated ethylene-propylene co-polymer), have been extensively used in space applications, protective coatings, microelectronics packaging and ...

    • Adhesion of copper to Teflon ® poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) surfaces modified by vacuum UV photo-oxidation downstream from argon microwave plasma 

      Dasilva, W.; Entenberg, Alan; Kahn, B.; Debies, Thomas; Takacs, Gerald (Materials Research Society Proceedings: Materials for Space Applications, 2005)
      Good practical adhesion of sputter-deposited Cu is achieved to poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) surfaces at short treatment times of vacuum UV (VUV) photo-oxidation downstream from Ar ...

    • Atmospheric photochemistry of alkyl nitrates 

      Turberg, M.; Giolando, D.; Tilt, C.; Soper, T.; Mason, S.; Davies, M.; Klingensmith, P.; Takacs, Gerald (Elsevier: Journal of Photochemistry and Photobiology, 1990-04)
      Photoabsorption spectra of gaseous ethyl nitrate, n-propyl nitrate, 2-propyl nitrate, n-butyl nitrate and 3-methyl-1-butyl nitrate were quantitatively measured in the laboratory at room temperature for λ >185 nm. The spectra ...

    • Atmospheric photodissociation lifetimes for nitromethane, methyl nitrite, and methyl nitrate 

      Taylor, W.; Allston, T.; Moscato, M.; Fazekas, G.; Kozlowski, R.; Takacs, Gerald (Wiley: International Journal of Chemical Kinetics, 1980-04)
      Atmospheric photodissociation rate coefficients and photodissociation lifetimes for nitromethane, methyl nitrite, and methyl nitrate were calculated as a function of altitude from their measured visible and near ultraviolet ...

    • Heats of formation and bond dissociation energies of some simple sulfur- and halogen-containing molecules 

      Takacs, Gerald (The American Chemical Society: Journal of Chemical and Engineering Data, 1978-04)
      The heats of formation and bond dissoclation energies of some simple sulfur- and halogen-containing molecules are derived from information found in the literature. These thermochemical quantities are useful in determining ...

    • Photo-oxidation of multiwalled carbon nanotubes 

      Parekh, Bhavin; Debies, Thomas; Knight, Pam; Santhanam, K.S.V.; Takacs, Gerald (Materials Research Society Proceedings: Degradation Processes in Nanostructured Materials, 2006)
      MWNTs were photo-oxidized in quartz boats using low-pressure Hg lamps and emission downstream from Ar microwave plasmas which are primarily atomic line sources of 253.7 and 184.9 nm UV, and 106.7 and 104.8 nm vacuum UV ...

    • Photo-oxidation of singlewalled carbon nanotubes 

      Parekh, Bhavin; Debies, Thomas; Evans, C.; Landi, Brian; Raffaelle, Ryne; Takacs, Gerald (Materials Research Society Proceedings: Degradation Processes in Nanostructured Materials, 2006)
      UV- and vacuum UV-assisted photo-oxidation of single-walled carbon nanotube (SWNT) paper occurred with: (1) atmospheric oxygen pressure using low-pressure Hg lamps (ë = 253.7 and 184.9 nm), (2) low oxygen pressure employing ...

    • Photoabsorption spectra of gaseous methyl bromide, ethylene dibromide, nitrosyl bromide, thionyl chloride, and sulfuryl chloride 

      Uthman, A.; Demlein, P.; Allston, T.; Withiam, M.; McClements, M.; Takacs, Gerald (The American Chemical Society: The Journal of Physical Chemistry, 1978-10-05)
      The photoabsorption spectra of some molecules of atmospheric interest, CH3Br, BrCH2CH2Br, BrNO, SOCl2, and SO2Cl2, were quantitatively investigated over the wavelength region from 190 to 300 nm at 295 K and were found to ...

    • Photoetching and modification of organic polymer surfaces with vacuum UV radiation 

      Takacs, Gerald; Vukanovic, V.; Tracy, D.; Chen, J.; Egitto, F.; Matienzo, L.; Emmi, F. (Elsevier: Polymer Degradation and Stability, 1993)
      Commercially available organic polymer films were treated with radiation from 6·7 × 104 Pa He and Ar plasmas that were made to rotate inside a graphite tube by the application of an auxiliary magnetic field. To investigate ...

    • Photoetching and modification of poly(tetrafluoroethylene-co-hexafluoropropylene) polymer surfaces with vacuum UV radiation 

      Chen, J.; Tracy, D.; Zheng, S.; Xiaolu, L.; Brown, Scott; VanDerveer, William; Entenberg, Alan; Vukanovic, V.; Takacs, Gerald; Egitto, F.; Matienzo, L.; Emmi, F. (Elsevier: Polymer Degradation and Stability, 2003-03)
      Films of poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) were exposed to radiation from 6.7 x 104 Pa He and Ar dc arc plasmas that were made to rotate inside of a graphite tube by the application of an auxiliary ...

    • Primary products and secondary reactions in the photodecomposition of methyl halides 

      Takacs, Gerald; Willard, J. (The American Chemical Society: The Journal of Physical Chemistry, 1977-07-14)
      CH3I, CH3Br, and CH3CI have been photolyzed at 184.9 nm and CH3I at 253.7 nm, using CO, C2H4, C2H6, C3H8, C3D8, and CD4 as scavengers to assist in the identification of the primary decomposition products. The quantum yield ...

    • Reaction of atomic oxygen with hydrogen bromide 

      Takacs, Gerald; Glass, G. (The American Chemical Society: Journal of Physical Chemistry, 1973-04-26)
      The reaction of atomic oxygen with HBr was studied in a fast discharge flow system by monitoring epr spectra of O(3P2), Br(2P3/2), OH(2pi3/2), and H(2S1/2) at various reaction times. The experimental results were found to ...

    • Reactions of hydrogen atoms and hydroxyl radicals with hydrogen bromide 

      Takacs, Gerald; Glass, G. (The American Chemical Society: The Journal of Physical Chemistry, 1973-04-12)
      A fast discharge-flow system was used to study reactions of hydrogen atoms and hydroxyl radicals with hydrogen bromide at 295 K. The reactions were followed by monitoring the epr spectra of H(2S1/2), Br(2P3/2), and OH(2pi3/2) ...

    • Reactions of hydroxyl radicals with some hydrogen halides 

      Takacs, Gerald; Glass, G. (The American Chemical Society: The Journal of Physical Chemistry, 1973-08-02)
      The reactions of OH with HCl and HI have been studied in a fast flow system. Hydroxyl radicals were generated by NO2 titration of atomic hydrogen, and concentrations of OH, Cl , and I were determined at various reaction ...

    • RIT Undergraduate Symposium 2005 

      Bodell, A.; Williams, Scott; Ibrahim, Ahmed; Wilson, Jacquelyn; Pagano, Todd; Regula, A.; Robinson, Andrew; Axon, David; Varble, A.; Hammond, W.; Ferran, Maureen; Basener, William; Entenberg, Alan; Talbot, Justin; Debies, T.; Greeson, Nikole; Meade, Jeff; Worman, James; Donahue, Margret; Guggemos, Nick; Cress, Cory; Roberts, M.; Evans, Irene; Parekh, Bhavin; Kurinec, Santosh; Sinisgalli, Natalie; Savka, Michael; Wilson, Richard; Salvaggio, Carl; Mejia, Omar; Smith, Nakesha; Sarchet, S.; Curran, Patrick; Whiting, P.; Xiao, Danny; Walvoord, R.; Landi, Brian; Messinger, David; Korfmacher, Karl; Mueller, E.; Watkins, Amanda; Narayan, Darren; Skuse, Gary; Ewbank, Dale; Okeke, Nkiruka; Denno, P.; Plummer, P.; Langner, Andreas; Collison, Christina; Younker, J.; Wright, G.; Shipman, Paul; Landi, Brian; Barker, S.; Osier, Michael; Scott, Russell; Pearce, D.; Raish, K.; Burr, Thomas; Ballard, Sarah; Loesch, B.; Illingsworth, Marvin; Taylor, Samantha; Erickson, C.; Phillips, Daniel; Brady, B.; Frisina, D. Robert; Delva, E.; Newman, Dina; Sipos, B.; Richter, E.; Ruf, Herbert; DiLeo, Roberta; Raffaelle, Ryne; Daley, Christopher; Koestler, Devin; DeLorenzo, Joseph; Schauerman, C.; Denial, Sarah; Fuller, Lynn; Craig, Paul; Adameck, Julie; Cotman, B.; O'Handley, Suzanne; Hinke, Emma; Wiandt, Tamas; Jaeger, D.; Brandon, J.; Tubbs, Laura; Topley, E.; DeCelles, G.; Doolittle, Richard; Berns, Roy; Gregg, Elizabeth; Franklin, Scott; Buchanan, Catherine; Onyeke, E.; Grande, C.; Kistner, Jason; Clark, Pat; Binotto, E.; Privon, G.; O'Dea, Christopher; Filby, J.; Golebiewski, L.; Brazeau, H.; Baum, Stefi; Kharb, P.; Kohn, J.; Takacs, Gerald; Pappas, Brandi; Thurston, George; Bavelier, Daphne; Guidon, A.; Yi, Hye Yon; Kuhl, Michael; Lowe, Nathaniel; Sheibley, D.; Gallagher, J.; Helguera, Maria; Banach, Steve; Rubenstein, L.; Achtman, R.; Gopal, Shuba; Ramos, J.; Arney, Jonathan; Krysak, Marie; Yi, Ling (2005-08)
      The Undergraduate Research Symposium was founded to honor student achievement in scientific research and to further RIT’s goal of combining traditional laboratory work and classroom instruction with experiential learning. ...

    • Room-temperature rate constant for the hydroperoxo + hydroperoxo reaction at low pressures 

      Takacs, Gerald; Howard, Carleton (The American Chemical Society: The Journal of Physical Chemistry, 1984-05-10)
      The rate constant, k1, for the self-reaction of HO2, HO2 + HO2 --> H2O2 + O2, was investigated in a discharge-flow system at room temperature and low pressures (1-7 torr) of He carrier gas by laser magnetic resonance ...

    • Rotational spectroscopy of DO2 by FIR LMR and millimeter-wave absorption 

      Sears, Trevor; Takacs, Gerald; Howard, Carleton; Crownover, Richard; Helminger, Paul; De Lucia, Frank (Elsevier: Journal of Molecular Spectroscopy, 1986-07)
      We report the measurement of approximately 50 rotational transitions in the DO2 radical between 230 and 2530 GHz by high-resolution millimeter-wave and far-infrared laser magnetic resonance spectroscopy. The radical was ...

    • Surface composition and distribution of fluorine in plasma-fluorinated polyimide 

      Matienzo, L.; Emmi, F.; Egitto, F.; Van Hart, D.; Vukanovic, V.; Takacs, Gerald (The American Vacuum Society: Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films, 1988-05)
      Surface composition, fluorine distribution, and morphology were determined for polyimide films modified downstream from microwave plasmas containing CF4/O2. Complementary analytical techniques including x-ray photoelectron ...