Browsing by Author "Olea, Andrés F."
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Counterion and composition effects on discotic nematic lyotropic liquid crystals - I. Size and order Montecinos, R.; Ahumada, H.; Araya Maturana, Ramiro; Olea, Andrés F.; Weiss López, Boris (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2007-12-01)Counterion and composition effects on the size and interface dynamics of discotic nematic lyotropic liquid crystals made of tetradecyltrimethylammonium halide (TTAX)-decanol (DeOH)-water-NaX, with X = Cl- and Br-, were ...
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Aguirre, M. J.; Lissi Gervaso, Eduardo A.; Olea, Andrés F. (1987)The deactivation of a number of excited polycyclic aromatic hydrocarbons by copper(II), cobalt(II), nickle(II) and chromium(III) in ethanol-water (1:1 by volume) has been investigated. In spite of the fact that most of the ...
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Barraza, Raul; Olea, Andrés F.; Fuentes, Irma; Martínez, Francisco (2003)Measurements of the electrical equivalent conductivity of potassium salts of poly(maleic acid-co-1-olefins), PA-nK(2) with n = 12, 18 has been carried out in methanol-water mixtures in the whole range of composition. The ...
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Martinez, Francisco; Neculqueo, Gloria; Torres, Manuel; Olea, Andrés F. (Sociedad Chilena de Quimica, 2001)Maleic anhydride - styrène copolymers were synthesized in acetone-toluene solution at 60° C by azo-bisisobutironitrile.The copolymers were characterized by Gel Permeation Chromatography and Differential Scanning Calorimetry.The ...
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Silva, Salom; Olea, Andrés F.; Thomas, J. K. (1991)Photoexcitation of 1‐pyrenyldiazomethane (1) leads to carbenes which attach to various molecules, e.g. surfactants, polymers, hydroxylated surfaces. This provides a convenient method of labelling these compounds with pyrene ...
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Encinas, M. V.; Lissi Gervaso, Eduardo A.; Olea, Andrés F. (1985)Abstract— The quenching rate of triplet benzophenone in water and/or water mixtures has been determined employing vitamin C, vitamin E, cystine, cysteine, reduced and oxidized glutathione, methionine and DL‐penicillamine. ...
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Olea, Andrés F.; Thomas, J. K. (1988)The kinetics of the quenching of excited pyrene by several molecules in a variety of hydrocarbon solvents and in a diol are reported. The rate constants for reaction of the excited pyrene are, for the most part, ...
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Olea, Andrés F.; Worrall, David R.; Wilkinson, Frank (2003)Data is presented on the quenching of 9,10-dicyanoanthracene by benzene derivatives in acetonitrile. The quenching occurs via a charge transfer mechanism with the quenching rate constants exhibiting a Rehm-Weller dependence ...