Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Steven E. Keinath"'
Autor:
Pasco R. Santurri, Berryinne Decker, Peter I. Carver, Claire Hartmann-Thompson, Steven E. Keinath
Publikováno v:
Chemistry of Materials. 22:942-948
Single-layer proton exchange membranes (PEMs) have been under development for several decades. The current use of conductive polymers in PEM fuel cells has been limited primarily to single layered sulfonated fluoro polymers, e.g. Nafion. Although thi
Autor:
Peter I. Carver, Lowell S. Thomas, Pasco R. Santurri, Douglas L. Keeley, Adrian Merrington, Steven E. Keinath, Kenneth J. Bruza, Dennis A. Hucul, Joseph L. Rousseau, Claire Hartmann-Thompson, Denise M. Katona, Robert M. Nowak
Publikováno v:
Journal of Applied Polymer Science. 110:958-974
Three novel polyhedral oligosilsesquioxane (POSS) nanofillers functionalized with proton-conducting sulfonic acid groups, mixed sulfonic acid and alkyl groups, and phosphonic acid groups were synthesized, characterized by IR, 1H and 13C NMR, and MALD
Autor:
Claire Hartmann-Thompson, Steven E. Keinath, Petar R. Dvornic, Marcos Dantus, Tissa C. Gunaratne, Douglas L. Keeley, Dale J Lecaptain, Kathleen M. Pollock
Publikováno v:
Chemistry of Materials. 20:2829-2838
A series of polyhedral oligosilsesquioxane (POSS) nanosensors functionalized with fluorophores that change their wavelength of emission in response to their chemical environment has been synthesized and characterized by IR, NMR, UV, one- and two-dime
Autor:
Claire Hartmann-Thompson, Petar R. Dvornic, Keith R. McCrea, Douglas L. Keeley, Steven E. Keinath
Publikováno v:
Journal of Applied Polymer Science. 104:3171-3182
A series of novel polyhedral oligosilsesquioxane nanofiller compounds functionalized with hydrogen-bond acidic sensor groups was prepared, characterized by IR, 1H-, 13C- and 29Si-NMR, and MALDI-TOF MS, and formulated into polymer coatings for 500 MHz
Autor:
Robert A. Bubeck, Petar R. Dvornic, Alexander Hexemer, Daniel A. Fischer, Jin Hu, Xuefa Li, Steven E. Keinath
Publikováno v:
Macromolecular Chemistry and Physics. 206:1146-1153
The interaction of Cu 2+ with C, N and O moieties in nanocomposites containing copper ions complexed in poly(amidoamine-organosilicon), PAMAMOS, dendrimer networks was characterized using near edge X-ray absorption fine structure (NEXAFS). The effect
Autor:
Claire Hartmann-Thompson, Petar R. Dvornic, Steven N. Kaganove, and Douglas L. Keeley, Jin Hu, Steven E. Keinath
Publikováno v:
Chemistry of Materials. 16:5357-5364
A series of novel hyperbranched hydrogen-bond acidic polymers for surface acoustic wave (SAW) sensor applications were prepared by functionalizing hyperbranched polycarbosiloxanes or polycarbosilanes with phenol or hexafluoro-2-propanol groups. Start
Organic−Inorganic Polyamidoamine (PAMAM) Dendrimer−Polyhedral Oligosilsesquioxane (POSS) Nanohybrids
Publikováno v:
Macromolecules. 37:7818-7831
A series of novel core−shell organic−inorganic hybrid materials having polyamidoamine (PAMAM) dendrimer cores and polyhedral oligosilsesquioxane (POSS) shells were prepared. Compositional variety o...
Autor:
Anja Mueller, Salma Rahman, Matthew Jay Quast, Steven E. Keinath, Susanta K. Das, Abhijit Sarkar, K. Joel Berry, Jianfang Chai
Publikováno v:
Volume 6A: Energy.
The effects of electrolyte, catalyst, and the process of preparation of the air-cathode on the performance of Li-air batteries were investigated. An ether based electrolyte was the best choice for Ketjen Black carbon based air cathodes and delivered
In 1975, a symposium was held in Midland, Michigan, co-sponsored by the Dow Chemical Company and the then Midland Macromolecular Institute in honor of Raymond F. Boyer on the occasion of his 65th birthday and retirement from Dow. The topic of that fi
Publikováno v:
Macromolecules. 31:4498-4510
Steady shear flow properties of an extensive family of dendrimers were examined for the first time in medium to high concentration solutions. For this, the first seven generations of ethylenediamine (EDA) core−polyamidoamine (PAMAM) dendrimers, hav