Architectures de la mémoire : Peter Eisenman, Robert Lepage et W.G. Sebald

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

Le contrat du peintre : l'interartialité comme réflexivité dans le cinéma de Peter Greenaway

Ce mémoire explore la place de l’interartialité, des relations entre les arts, dans le cinéma de Peter Greenaway, et les fonctions qu’elle y remplit. À l’occasion de l’analyse de deux films qui centralisent la figure du peintre et la forme du contrat - The Draughtsman’s Contract et Nightwatching – et prenant comme point de départ théorique les travaux de Walter Moser, nous identifions et analysons quelques-unes des relations interartielles à l’oeuvre dans ces films, pour montrer que la mise en relation des arts de la peinture, du théâtre et du cinéma, dans leurs rapports biartials et pluriartials, constituent la trame fondamentale des films de Greenaway, dans une « interartialité non hiérarchique ». Nous concluons que le recours au dialogue interartiel permet au cinéaste d’esquisser, en filigrane, une posture critique sur l’art et l’artiste, une « théorie de l’art », par laquelle il exprime un point de vue sur le rôle et le statut de l’artiste au sein de la société.

Balkan als poetischer Raum : Peter Handkes Werk im Spiegel der "Morawischen Nacht"

Die morawische Nacht (2008) de Peter Handke représente un tournant: l’auteur y renonce à son engagement politique concernant les Balkans et il revient au « royaume de la poésie ». En reprenant des concepts de la théorie de l’espace dans les études culturelles, cette étude examine les moyens narratifs à partir desquels Handke projette une nouvelle image des Balkans. L’écrivain autrichien déconstruit son propre mythe du « Neuvième Pays » (Die Wiederholung, 1986), dont il a sans cesse défendu le concept dans les années 1990 (Eine winterliche Reise, 1996; Zurüstungen für die Unsterblichkeit, 1997; Die Fahrt im Einbaum, 1999; Unter Tränen fragend, 1999). Dans Die morawische Nacht, de fréquentes allusions et connotations nous ramènent aux œuvres antérieures, mentionnées ci-dessus. La signification et la fonction des nouvelles images des Balkans ne sont pas comprises que dans le cadre des références intertextuelles. Par l’entremise d’un maniement raffiné et ludique de l’ancien contenu et des vieilles structures, objets d’un nouvel usage, la poétique de Handke, toujours basée sur les soi-disant « Zwischenräume » (espaces intermédiaires) prouve toute sa puissance. Même si les Balkans perdent leur caractère absolu, ils continuent cependant à servir comme moyen de critique de la société moderne qui aspire cette fois à la mondialisation. Pendant que Handke réfute ironiquement sa naïveté de rechercher l’absolu dans le monde extérieur, le récit se révèle être le seul royaume où la paix et l’harmonie peuvent être créées.

Peter Pan contre le héros victorien : la poétique du recyclage dans le Cycle de Kraven de Xavier Mauméjean

Le Cycle de Kraven de Xavier Mauméjean met en place un réseau référentiel qui repose sur le recyclage systématique d’éléments historiques et littéraires. Afin de bien saisir le fonctionnement de ce cycle narratif, il importe de se pencher sur cette dynamique référentielle exacerbée relevant d’une poétique du recyclage (au sens de réutilisation) qui se manifeste par l’emprunt de nombreux référents historiques et littéraires, que le récit modifie à divers degrés. Au moyen de la notion de recyclage, des travaux sur la récupération de l’Histoire par l’uchronie et d’études sur le steampunk, esthétique dont relève le Cycle de Kraven, ce mémoire examine les effets de ce recyclage sur le fonctionnement du récit, mais aussi sur le lecteur. En effet, par un imposant mélange de références authentiques et fictives, le Cycle de Kraven cherche à mystifier le lecteur qui se trouve au centre d’un fourmillement intertextuel brouillant les frontières entre Histoire et fiction. Une réflexion sur le paratexte vient compléter l’analyse du Cycle de Kraven, puisque préface, notes en bas de page, liste de livres et bon de commande contribuent grandement à la création d’un effet de mystification.

Studies On Supported Cobalt (Ii), Nickel (Ii) and Copper (Ii) Complexes Of O-Phenylenediamine and Schiff Bases Derived from 3-Hydroxyquinoxaline-2-Carboxaldehyde

The thesis deals with the synthesis, characterization and catalytic activity studies of supported cobalt(ii), nickel(II) and copper(II) complexes of O-phenylenediamine and Schiff bases derived from 3-hydroxyquinoxaline -2-carboxaldehyde. Zeolite encapsulation and polymer anchoring was employed for supporting the complexes. The characterization techniques proved that the encapsulation as well as polymer supporting has been successfully achieved. The catalytic activity studies revealed that the activities of the simple complexes are improved upon encapsulation. Various characterization techniques are used such as, chemical analysis, EPR, magnetic measurements, FTIR studies, thermal analysis, electronic spectra, XRD, SEM, surface area, and GC.The present study indicated that the that the mechanism of oxidation of catechol and DTBC by hydrogen peroxide is not altered by the change in the coordination sphere around the metal ion due to encapsulation. This fact suggests outer sphere mechanism for the reactions. The catalytic activity by zeolite encapsulated complex was found to be slower than that by the neat complex. The slowing down of the reaction in the zeolite case is probably due to the constraint imposed by the zeolite framework. The rate of DTBC ( 3,5-di-tert-butylchatechol)oxidation was found to be greater than the rate of catechol oxidation. This is obviously due to the presence of electron donating tertiary butyl groups.

A PVC plasticized membrane sensor for nickel ions

A new PVC membrane sensor, which is highly selective towards Ni (II) ions, has been developed using a thiophene-derivative Schiff base as the ionophore. The best performance was exhibited by the membrane having the composition percentage ratio of 5:3:61:31 (ionophore:NaTPB:DBP:PVC) (w=w), where NaTPB is the anion excluder, sodium tetraphenylborate and DBP is the plasticizing agent (dibutyl phthalate). The membrane exhibited a good Nernstian response for nickel ions over the concentration range of 1.0 10 1– 5.0 10 6M (limit of detection is 1.8 10 6 M) with a slope of 29.5 1.0mV per decade of activity. It has a fast response time of<20 s and can be used for a period of 4 months with good reproducibility. The sensor is suitable for use in aqueous solutions of a wide pH range of 3.2–7.9. The sensor shows high selectivity to nickel ions over a large number of mono-, bi- and trivalent cations. It has been successfully used as an indicator electrode in the potentiometric titration of nickel ions against EDTA and also for direct determination of nickel content in real samples – wastewater samples from electroplating industries and Indian chocolates.

A PVC Plasticized Membrane Sensor for Nickel Ions

A new PVC membrane sensor, which is highly selective towards Ni (II) ions, has been developed using a thiophene-derivative Schiff base as the ionophore. The best performance was exhibited by the membrane having the composition percentage ratio of 5:3:61:31 (ionophore:NaTPB:DBP:PVC) (w=w), where NaTPB is the anion excluder, sodium tetraphenylborate and DBP is the plasticizing agent (dibutyl phthalate). The membrane exhibited a good Nernstian response for nickel ions over the concentration range of 1.0 10 1– 5.0 10 6M (limit of detection is 1.8 10 6 M) with a slope of 29.5 1.0mV per decade of activity. It has a fast response time of<20 s and can be used for a period of 4 months with good reproducibility. The sensor is suitable for use in aqueous solutions of a wide pH range of 3.2–7.9. The sensor shows high selectivity to nickel ions over a large number of mono-, bi- and trivalent cations. It has been successfully used as an indicator electrode in the potentiometric titration of nickel ions against EDTA and also for direct determination of nickel content in real samples – wastewater samples from electroplating industries and Indian chocolates.

Oxidation kinetics of nickel nano crystallites obtained by controlled thermolysis of diaquabis(ethylenediamine) nickel(II) nitrate

The metal complex, [Ni(en)2(H2O)2](NO3)2 (en = ethylenediamine), was decomposed in a static furnace at 200 C by autogenous decomposition to obtain phase pure metallic nickel nanocrystallites. The nickel metal thus obtained was studied by XRD, IR spectra, SEM and CHN analysis. The nickel crystallites are in the nanometer range as indicated by XRD studies. The IR spectral studies and CHN analyses show that the surface is covered with a nitrogen containing species. Thermogravimetric mass gain shows that the product purity is high (93%). The formed nickel is stable and resistant to oxidation up to 350 C probably due to the coverage of nitrogen containing species. Activation energy for the oxidation of the prepared nickel nanocrystallites was determined by non-isothermal methods and was found to depend on the conversion ratio. The oxidation kinetics of the nickel crystallites obeyed a Johnson–Mehl–Avrami mechanism probably due to the special morphology and crystallite strain present on the metal.

Cobalt (II), Nickel (II), and Copper (II) Complexes of Polystyrene-Supported Schiff Bases

Two novel polystyrene-supported Schiff bases, PSOPD and PSHQAD, were synthesized. A polymerbound aldehyde was condensed with o-phenylenediamine to prepare the Schiff base PSOPD, and a polymer-bound amine was condensed with 3-hydroxyquinoxaline-2-carboxaldehyde to prepare the Schiff base PSHQAD. This article addresses the study of cobalt (II), nickel (II), and copper (II) complexes of these polymer-bound Schiff bases. All the complexes were characterized, and the probable geometry was suggested using elemental analysis, diffuse reflectance ultraviolet, Fourier transform infrared spectroscopy, thermal studies, surface area studies, and magnetic measurements.

Studies on the preparation of Supported nickel catalysts using bis(ethylenediamine)nickel(II) complexes as precursors

Dept.of Applied Chemistry,Cochin University of Science and Technology

Surface Properties and Catalytic Activity of Ferrospinels Containing Cobalt, Nickel and Copper

The present study describes the surface properties and catalytic activities of ferrospinels containing Co, Ni and Cu prepared by the low temperature route. Various physico-chemical methods have been adopted to characterise the systems. The reactions carried out are the Friedel-Crafts benzoylation of aromatics and the cyclohexanol decomposition. We have attempted the sulphate modification of the ferrites and have studied the surface and catalytic properties of the sulphated analogues.The work is presented in six chapters, the last chapter giving the summary and conclusions of the results presented earlier. Our samples prove as potential catalysts for the benzoylation of aromatics , for which truly heterogeneous catalysts are rare. Again , the materials show remarkable dehydration/dehydrogenation activities during cyclohexanol decomposition. There is plenty of scope for research in this field, especially in the development of environmentally benign catalysts for acylation reactions.

Surface properties and catalytic activity of ferrospinels of nickel, cobalt and copper, prepared by soft chemical methods

Ferrospinels of nickel, cobalt and copper and their sulphated analogues were prepared by the room temperature coprecipitation route to yield samples with high surface areas. The intrinsic acidity among the ferrites was found to decrease in the order: cobalt> nickel> copper. Sulphation caused an increase in the number of weak and medium strong acid sites, whereas the strong acid sites were left unaffected. Electron donor studies revealed that copper ferrite has both the highest proportion of strong sites and the lowest proportion of weak basic sites. All the ferrite samples proved to be good catalysts for the benzoy lation of toluene with benzoyl chloride. copper and cobalt ferrites being much more active than nickel ferrite. The catalytic activity for benzoylation was not much influenced by sulphation, but it increased remarkably with calcination temperature of the catalyst. Surface Lewis acid sites, provided by the octahedral cations on the spinel surface, are suggested to be responsible for the catalytic activity for the benzoylation reaction.

Preparation and Characterization of Magnetic and Non-magnetic Nanosized Spinel Oxides, Nickel Nanoparticles and Nickel-Polymer Nanocomposites

Department of Physics, Cochin University of Science and Technology

Template assisted fabrication of I-D nanostructures of Nickel,Cobalt, Iron Oxide and Carbon nanotubes and a study on their structural, magnetic and nonlinear optical properties for applications

Department of Physics, Cochin University of Science & Technology