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Glued Langmuir−Blodgett Bilayers from Porous versus Nonporous Surfactants

McCullough, Donald H ; Janout, Vaclav ; Li, Junwei ; Hsu, James T ; Truong, Quoc ; Wilusz, Eugene ; Regen, Steven L

Journal of the American Chemical Society, 2004-08, Vol.126 (32), p.9916-9917 [Periódico revisado por pares]

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Título:
Glued Langmuir−Blodgett Bilayers from Porous versus Nonporous Surfactants
Autor: McCullough, Donald H ; Janout, Vaclav ; Li, Junwei ; Hsu, James T ; Truong, Quoc ; Wilusz, Eugene ; Regen, Steven L
Assuntos: Chemistry ; Exact sciences and technology ; General and physical chemistry ; Langmuir blodgett films ; Surface physical chemistry
É parte de: Journal of the American Chemical Society, 2004-08, Vol.126 (32), p.9916-9917
Notas: istex:6903B6BD7C10BC3465C8BBD08005C44B76E9A305
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SourceType-Scholarly Journals-1
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Descrição: Poly(4-styrenesulfonate) (PSS) has been used to ionically cross-link (glue together) single Langmuir−Blodgett bilayers derived from 1,2,4,5-tetrakis[N,N-dimethyl-N-(1-hexadecyl)-ammoniummethyl]benzene (2a) and tris(N,N-dimethyl-N-hexadecylammoniummethyl)mesitylene (3). The resulting films are of high quality as judged by He/N2 permeation selectivities of ca. 100. Such selectivity is well in excess of the Knudsen diffusion limit of 2.6 and approaches that which has been found for glued bilayers of 5,11,17,23,29,35-hexakis[(N,N,N-trimethylamonium)-N-methyl-37,38,39,40,41,42-hexakis-n-hexamedecyloxy-calix[6]arene hexachloride (1). The significance of these findings to LB technology, in general, is briefly discussed.
Editor: Washington, DC: American Chemical Society
Idioma: Inglês

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