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Hydrogenation of crotonaldehyde on Pt/SiO2 catalysts modified with tin added via surface organometallic chemistry on metals techniques
(Elsevier Science, 2000-04-24)
The importance of the preparation procedure and the understanding of the mechanisms that control this stage on the final properties of the catalyst are evidenced for PtSn systems obtained via surface organometallic chemistry ...
Synergism in mixtures of cationic surfactant and anionic copolymers
(2003)
Surface tension measurements have been made in aqueous solutions of anionic hemiesters of an alternating copolymer of maleic acid and styrene, MAS-n with n=0-12, in the presence of dodecyltrimethylammonium bromide, DTAB. ...
Association of alkylpyridine derivatives to dodecylsulfate micelles
(1995)
Association constants of alkylpyridine bromide, CnPyB, (methyl, ethyl, propyl, and butyl) to dodecylsulfate micelles has been determined by two methods, ultrafiltration and fluorescence spectroscopy. In the last, the ...
Determination of surface functional groups in lignocellulosic materials by chemical derivatization ESCA analysis
(2006)
Simple and convenient methods for determining surface chemical composition of lignocellulosic materials are described. The methods are based on vapor phase fluorine surface derivatization with either trifluoro acetic ...
A model of the Fermi surface for antiferromagnetic europium metal
(1973)
Energy gaps near the Fermi surface arising from magnetic Brillouin zone effects must be taken into account in order to understand the antiferromagnetism of europium metal. © 1973 Pergamon Press.
Study of the adsorption of n-heptane and 1-heptane by aerosil
(1985)
Adsorption isotherms of 1-heptene and n-heptane were determined at three near-ambient temperatures on a nonporous silica (Aerosil 200 They appear to lend support to the hypothesis that the double bond of the olefins ...
Factors affecting the strength of denture repairs: Topics of interest
(2007-07-01)
Fracture of dentures is a common clinical finding in daily prosthodontic practice, resulting in great inconvenience to both patient and dentist. A satisfactory repair should be cost-effective, simple to perform, and quick; ...