Browsing by Subject "Reaccions químiques"
Now showing items 1-20 of 23
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A new CVD diamond mosaic-detector for (n, a) cross-section measurements at the n_TOF experiment at CERN
(2013-08-02)
Article
Restricted access - publisher's policyAt then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ... -
Analysis of the non-ideal crosslinking process in thiol-X “click” thermosets
(Elsevier, 2024-04-13)
Article
Open AccessThiol-click reactions are widely used in the preparation of thermosets. The network build-up process follows step-wise polymerization behavior, which is commonly analyzed assuming ideal step-wise behavior using well- known ... -
Avaluació eficient dels residus de productes absorbents d’higiene personal a través d'una nova combinació d'un reactor autoclau i la gasificació
(Universitat Politècnica de Catalunya, 2015-01)
Bachelor thesis
Restricted access - author's decision
Covenantee: FaterEl present Treball de Final de Grau s’ha realitzat durant l’estada a l’empresa Fater S.p.A. a la ciutat de Pescara, Itàlia. Aquest treball forma part d’un projecte europeu anomenat VIRGIN (Highly-efficient ValorIsation of ... -
Chemical processing routes based on reaction pathways
(Universitat Politècnica de Catalunya / Denmarks Tekniske Universitet, 2013)
Bachelor thesis
Open Access
Covenantee: Danmarks tekniske universitetThe integration of reaction and separation tasks in one process unit represents a potential advantage for overcoming reaction limitations, such as reaction equilibrium. The design of reactive separation units based on ... -
Contribution to the Study of Heterogeneous Catalytic Reactions in SCFs: Hydrogenation of Sunflower Oil in Pd Catalysts at Single‐Phase Conditions.
(Universitat Politècnica de Catalunya, 2005-12-10)
Doctoral thesis
Open AccessLa hidrogenación es uno de los procesos químicos industriales más importantes. Una amplia variedad de productos químicos es obtenida mediante la hidrogenación catalítica. <br/>Uno de los procesos típicos de hidrogenación ... -
CuZn/ZrO2 catalytic honeycombs for dimethyl ether steam reforming and autothermal reforming
(Elsevier, 2013-02)
Article
Restricted access - publisher's policyDimethyl ether (DME) steam reforming simulating practical applications was tested over catalytic honeycombs coated with ZrO2 and loaded with different amounts of Cu and Zn. The best catalytic performance in terms of ... -
Equilibrium of simultaneous tert-amyl ethyl ether and tert-amyl alcohol formation reactions
(Universitat Politècnica de Catalunya / Teknillinen Korkeakoulu ( Helsinki University of Technology), 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Ethanol steam reforming for hydrogen generation over structured catalysts
(2013-04)
Article
Restricted access - publisher's policyThe present paper reports on the preparation, characterization and reaction evaluation of structured catalysts toward hydrogen generation via ethanol steam reforming. To these ends, 400 cpsi cordierite monoliths were ... -
Gel reaction flow patterns in a non-element reactor with two branch flows
(Universitat Politècnica de Catalunya / Keio University, 2017-07)
Master thesis
Open AccessIn the framework of chemical and energy engineering fluids have been the subject of many studies for a lot years. In some cases, these fluids upon contact form gels. These gels have many applications like medical, ... -
Métodos actuales de revalorización de plásticos por medio del reciclaje químico
(Universitat Politècnica de Catalunya, 2023-09-14)
Master thesis
Open AccessAquest treball té per objectiu general descriure els mètodes actuals de revaloració de plàstics per mitjà del reciclatge químic. Després d'un fonament teòric on s'exposen els conceptes bàsics sobre els plàstics i polímers, ... -
Molècules en acció : del big bang als materials del futur
(Universitat Politècnica de Catalunya, 2010)
Book
Open AccessL'origen de la vida, la forma com els animals s'atreuen o com les plantes es defensen, els mecanismes del càncer, les addiccions, la composició dels pigments de les obres d'art, la forma d'obtenir vehicles més segurs, ... -
New bio-based materials obtained by thiol-ene/thiol-epoxy dual curing click procedures from eugenol derivates
(2017-08)
Article
Open AccessNovel bio-based and dual-curable thermosets were prepared from eugenol derivatives. The curing sequence combined two click reactions, a photoinduced radical thiol-ene reaction followed by a thermally activated thiol-epoxy ... -
New epoxy thermosets derived from clove oil prepared by epoxy-amine curing
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-01-01)
Article
Open AccessNew thermosets from a triglycidyl eugenol derivative (3EPOEU) as a renewable epoxy monomer were obtained by an epoxy-amine curing process. A commercially-available Jeffamine® and isophorone diamine, both obtained from ... -
Numerical study on Taylor flow in monolithic reactors
(Universitat Politècnica de Catalunya / Technishe Universität Dresden, 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Procés de fabricació del BHT
(Universitat Politècnica de Catalunya, 2015-01)
Bachelor thesis
Restricted access - author's decisionL’objectiu del projecte és avaluar, de manera teòrica, la viabilitat industrial del procés de fabricació del 2,6-ditert-butil-4-metil-fenol, conegut com BHT, a partir de fenol. S’estudien les diverses vies de reacció ... -
Room-temperature Suzuki-Miyaura reaction catalyzed by Pd supported on rare earth oxides: Influence of the point of zero charge on the catalytic activity
(2013-06-01)
Article
Restricted access - publisher's policyFive Pd/REO (rare earth oxide) compounds (Pd/La2O3, Pd/CeO2, Pd/Pr6O11, Pd/Sm2O 3, and Pd/Gd2O3) have been successfully used as precatalysts in the Suzuki-Miyaura C-C cross-coupling reaction of aryl bromides with arylboronic ... -
Sequential curing of off-stoichiometric thiol-epoxy thermosets with a custom-tailored structure
(2016-01-01)
Article
Open AccessA new dual-curing system based on sequential thiol-epoxy click polycondensation and epoxy anionic homopolymerization was studied. Formulations of diglycidyl ether of bisphenol A and trimethylolpropane tris(3-mercaptopropionate) ... -
Sequential dual curing by selective Michael addition and free radical polymerization of acetoacetate-acrylate-methacrylate mixtures
(2018-01)
Article
Open AccessA new family of poly(keto ester)-poly(methacrylate) thermosets based on off-stoichiometric acetoacetate-acrylate/methacrylate formulations has been prepared and characterized. The first stage of curing is a self-limiting ... -
State of the art in dual-curing acrylate systems
(2018-02-12)
Article
Open AccessAcrylate chemistry has found widespread use in dual-curing systems over the years. Acrylates are cheap, easily handled and versatile monomers that can undergo facile chain-wise or step-wise polymerization reactions that ... -
Study of cross-linking reactions on butadiene binders in aqueous finishing
(2010-12-14)
Article
Restricted access - publisher's policyButadienes, like acrylic binders and polyurethanes, can be cross-linked to improve their wet fastness properties. Nowadays, four types of cross-linkers for leather finishing are available: polyaziridines,polyisocyanates, ...