Anhydride ring chemistry at a metal surface
Article Abstract:
The interaction of phthalic anhydride (I) with a clean and oxygen predosed Cu(100) surface has been studied using Fourier transform infrared spectroscopy between 95 to 300 K. I is used as a model system for studying other anhydride species such as pyrometallic dianhydride which are used in the production of polyimides. Results show that adsorption on a clean surface at 95 K is dominated by the intact planar molecule which is oriented parallel to the metal surface. A species without carbonyl and carboxylate functionalities is produced on warming.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Adsorption of dimethyl sulfoxide to the liquid/vapor interface of water and the thermochemistry of transport across the interface
Article Abstract:
A study using surface second harmonic generation (SHG) examined molecules at the liquid/vapor interface of water. In particular, this research measured SHG from dimethyl sulfoxide (DMSO) at the liquid/vapor interface of DMSO(aq) solutions at equilibrium and quantified the Gibbs free energy of adsorption of DMSO to the interface. This adsorption-energy value, coupled with data provided in literature, offers a full thermodynamic description of a model potential energy surface for the transport of DMSO across the liquid/vapor interface of water.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Microcalorimetric study of the influence of surface chemistry on the adsorption of water by high surface area carbons
Article Abstract:
An attempt is made to investigate the adsorption of water on chemically modified, high surface area carbons by employing microcalorimetric techniques. Three mechanisms of water adsorption are detailed according to measured differential heats of adsorption (H (sub ads)).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
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