| Effects of substrate polarity and chain length on conformational and thermal properties of phosphonic acid self-assembled bilayers. | |
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MedLine Citation:
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PMID: 16285779 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Conformational and thermal behavior of self-assembled structures of three phosphonic acids, OPA (octadecylphosphonic acid), TPA (tetradecylphosphonic acid), and OcPA (octylphosphonic acid), with different alkyl chain lengths are investigated and compared. The orientation of self-assembled bilayers depends on whether the substrate is nonpolar (graphite) or polar (mica). For nonpolar substrates, bilayers lay parallel to the surface, and for polar substrates, bilayers lay perpendicular to the surface. Thermal behaviors of these structures on mica and graphite are also investigated, showing that, depending on the temperature they are submitted to, molecules stack, unstack, or agglomerate on mica and form larger domains on graphite. |
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Authors:
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G N Fontes; B R A Neves |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Langmuir : the ACS journal of surfaces and colloids Volume: 21 ISSN: 0743-7463 ISO Abbreviation: Langmuir Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-11-15 Completed Date: 2007-04-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882736 Medline TA: Langmuir Country: United States |
Other Details:
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Languages: eng Pagination: 11113-8 Citation Subset: - |
Affiliation:
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Departamento de Física, ICEx, Universidade Federal de Minas Gerais, Ave. Antonio Carlos, 6627-Belo Horizonte, CEP 30123-970, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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