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Artykuły w czasopismach na temat "Chimie verte et durable"
Firtion, Eric, i Christophe Rupp-Dahlem. "La chimie verte et la chimie du végétal". Annales des Mines - Réalités industrielles Mai 2015, nr 2 (2015): 38. http://dx.doi.org/10.3917/rindu1.152.0038.
Pełny tekst źródłaGrésillon, Boris, i Ares Kalandides. "Berlin ville verte et durable : utopie ou réalité ?" Allemagne d'aujourd'hui N° 234, nr 4 (2020): 46. http://dx.doi.org/10.3917/all.234.0046.
Pełny tekst źródłaFizaine, Florian. "La croissance verte est-elle durable et compatible avec l’économie circulaire ? Une approche par l’identité IPAT". Natures Sciences Sociétés 29, nr 3 (lipiec 2021): 312–25. http://dx.doi.org/10.1051/nss/2021057.
Pełny tekst źródłaBarbier, Edward B. "Économie verte et développement durable : enjeux de politique économique". Reflets et perspectives de la vie économique LI, nr 4 (2012): 97. http://dx.doi.org/10.3917/rpve.514.0097.
Pełny tekst źródłaMoedas, Carlos. "La biotechnologie industrielle, facteur de développement durable et de croissance verte". Annales des Mines - Réalités industrielles Février 2017, nr 1 (2017): 5. http://dx.doi.org/10.3917/rindu1.171.0005.
Pełny tekst źródłaLéonard, Naomie. "DÉVELOPPEMENT DURABLE, ÉCONOMIE VERTE ET PRATIQUE NÉOCOLONIALE : L’ÉCOTOURISME AU COSTA RICA". InSURgência: revista de direitos e movimentos sociais 5, nr 1 (24.12.2019): 408–33. http://dx.doi.org/10.26512/insurgencia.v5i1.28898.
Pełny tekst źródłaGuertin, Pascale, i Valérie Poirier-Rouillard. "Les bibliothèques et le développement durable". Documentation et bibliothèques 63, nr 3 (12.09.2017): 5–17. http://dx.doi.org/10.7202/1041018ar.
Pełny tekst źródłaBenoit-Cattin, Luc. "La chimie, un acteur responsable et incontournable de l’économie durable". Annales des Mines - Réalités industrielles Mai 2015, nr 2 (2015): 33. http://dx.doi.org/10.3917/rindu1.152.0033.
Pełny tekst źródłaAntoniotti, Sylvain. "4èmes Journées franco-italiennes de chimie : Environnement et développement durable". Comptes Rendus Chimie 12, nr 8 (sierpień 2009): 829–30. http://dx.doi.org/10.1016/j.crci.2009.03.006.
Pełny tekst źródłaFrimousse, Soufyane, i Jean-Marie Peretti. "La contribution de la finance verte et durable à la performance extra-financière". Question(s) de management 36, nr 6 (17.11.2021): 141–66. http://dx.doi.org/10.3917/qdm.216.0141.
Pełny tekst źródłaRozprawy doktorskie na temat "Chimie verte et durable"
Garnier, Estelle. "« Une approche socio-économique de l’orientation des projets de recherche en chimie doublement verte »". Thesis, Reims, 2012. http://www.theses.fr/2012REIME002/document.
Pełny tekst źródłaSince the last two decades the rise of environmental concerns leads to the sector of chemistry to develop new practices and new products. In particular, new products and processes based on biomass as renewable resources are developed. This is what we call the Doubly Green Chemistry (2GV) (Nieddu et al. 2010).Starting from an initial request for production of "roadmap" and identification of "dominant design" (understood as dominant technological paths) for this new sector from the chemist to guide their research programs, the start idea of this thesis was to test the scheme "exploration / exploitation" of a transition path proposed by the "transition to sustainable management" approach. The main idea it was to test this approach by changing the perspective to deal with this model in terms of representation constructions of the future of this activitie.The work has put forward a variety of representations of the douly green chemistry who settled in the time until the finest level (that of the laboratory). The interest of this result of diversity is that it brings us back to the canonical model that is implicitly built around the transition from a dominant socio-technical regime based on a single artefact to another dominant socio-technical regime based on a another unique artifact.In our case oil and its refinery replaced by biomass and its biorefinery.This result suggests an enrichment of model canonical representation taking into account the possibility of a new socio-technical regime of another nature. Regime whose main characteristic is the need of maintaining a diversity of artifacts
Moutaoukil, Zakaria. "Synthèse et étude de nouveaux agents de flottation et de démétallisation et leurs applications dans l'industrie des phosphates". Electronic Thesis or Diss., Université Côte d'Azur, 2023. http://theses.univ-cotedazur.fr/2023COAZ4027.
Pełny tekst źródłaNowadays, the mining industry has seen intense activity in the development of reagents and additives for processing a wide variety of minerals, with a special focus on collectors, depressants, as well as chelating agents. Indeed, these agents demonstrated high performances at industrial level, and more particularly in the phosphate industry.The ultimate goal of this thesis work is to develop new “Home Made” reagents and additives in order to support ongoing developments in the phosphate industry in Morocco and to open new perspectives. Accordingly, our research work is focused on the synthesis and performance evaluation of reagents and additives at laboratory, pilot and industrial scales. In this context, agents, belonging to different chemical classes, have been designed for P2O5 low-grade phosphate beneficiation as well as for heavy metals removal. Indeed, with the increase in the world population and the growing demand for free-heavy metals phosphate fertilizers, it is of utmost importance to focus on the exploitation of P2O5 low-grade phosphates and the elimination of heavy metals. In this context, we developed and evaluated various home-made organophosphorus agents during reverse flotation and precipitation processes. These chemicals have proven to be very effective and have produced high yields. Furthermore, during this thesis work, we were also interested in the design, synthesis and evaluation of new bis-phosphonic acids and dihydropyrimidines, with the aim of enhancing and diversifying the portfolio of P-based products, within the framework of green and sustainable chemistry
Drillaud, Nicolas. "Agro-ressources et photo-régulation : vers la synthèse de nouveaux chromophores appliquée au domaine du développement durable". Compiègne, 2012. http://www.theses.fr/2012COMP2050.
Pełny tekst źródłaThe field of chemistry has witnessed a huge development since the 20th century. Nowadays, this field really needs to become more eco-friendly. One of the major challenges in green chemistry is to replace organic solvents with less hazardous solvents such as water. However, organic compounds are not very soluble in water, which involves a poor yield of organic reactions. To solve this problem, the use of surfactants has been considered. Indeed, those products organized themselves to form micelles, which allows the solubilization of organic compounds and play the part of chimio-reactors. Nevertheless, it can be difficult to extract the products at the end of the reaction, which will make the recycling of the reactional media less efficient. The solution we consider is to synthesize a new surfactant containing an azobenzene as chromophore. Actually, those compounds have the properties to isomerize themselves from their trans forms to their cis forms. This process is reversible. One of these surfactants was synthesized. Its physico-chemicals properties of tensioactivity and photo-regulation have been proved. The use of this surfactant as chimio-reactor for the organic synthesis has been assessed. We were able to show that its employ allows the increase of the yield of the reaction. Moreover, its photochromism properties permit to make the extraction of the products- at the end of the reaction- and also the recycling easier
Schultz, Emilien. "Construire une économie de la recherche sur projets. L’installation de l’Agence Nationale de la Recherche en France et ses conséquences dans les domaines de la génomique végétale et de la chimie durable". Thesis, Paris 4, 2016. http://www.theses.fr/2016PA040106.
Pełny tekst źródłaThe National Research Agency (ANR) created in 2005 brings the French research system closer to Anglo-saxon ones, where funding agencies play an important part in research policies. Based on an investigation of the ANR and two funding programs in plant genomics and green chemistry, this dissertation shows the significant role played by the ANR in the transformation of funding allocation in France. It contributes both to sociology of science policies and to sociology of organisations. We use data from interviews with researchers, statistical analysis of submitted projects and various reports and media contents. We show that the ANR is an intermediate and semi-autonomous organisation whose aims have significantly evolved since its creation in 2005. The definition of its missions has been a continuous object of struggles which can be seen in the « career » of the agency. Because the ANR mainly « governs through projects », its activities led to the multiplication of competitive calls for projects in France. Some of the consequences are the singularisation of local situations, the scattering of research communities and a change in how researchers behave regarding fundings. More broadly, we show that the multiplication of competitive project funding opportunities leads to an « economy of projectified research ». In this type of economy, the main issue for researchers is to control the way their research is converted into « project » in order to be funded
Tosi, Pierluigi. "Stratégies de valorisation des humines en tant que sous produits de bioraffineries grâce à l’éco conception de matériaux poreux et à leurs applications". Thesis, Université Côte d'Azur (ComUE), 2019. http://www.theses.fr/2019AZUR4100.
Pełny tekst źródłaDeveloping research and markets around by-products has become indispensable not only from the environmental point of view but also for the circular economy of the industrial processes. In this context, humins constitute one of the most promising by-products. Humins are formed during the biorefinery conversion of lignocellulosic biomass derived sugars into furanic compounds. They consist in a dark-colored, highly viscous, mixture of oligomers derived from random condensations between the several intermediates (mainly HMF and derivatives) formed during the acid catalyzed process. Our group, along with many recent researches, have proven the many hidden possibilities of this furan-rich mixture, which might in turn be attractive for the interesting properties that humins can offer. In this thesis we report several studies performed in order to valorize this material, with a particular focus on humins foams, new polymeric carbon-based porous materials derived from industrial humins in a straightforward and economic attractive way. Humins foams can be prepared by direct heating treatments of humins industrially obtained without any preliminary step such as purification, separation or modification. We show in this manuscript that is possible to control the foams properties (pores dimension, degree of cells opening, morphology, carbon content, etc.) by controlling the preparation parameters such as temperatures applied, heating ramps, gas flow, amount of humins or kind of crucible. The mechanism of foaming has been revealed, several preparation conditions screening carried out, and the material characterized from the chemical, physico-chemical and structural point of view. Furthermore, for the first time, thermal hazard studies for both humins and humins foams have been carried out, which are indispensable for their transport and commercialization in support of entire Biorefinery. Humins foams properties have been deeply studied and tested in several fields, highlighting their most promising applications. Among these, humins foams has been successfully used in the preparation of alumina porous materials by sacrificial templating, which opens the path to future investigations involving further porous materials preparation. Along humins foams, also preliminary studies of crude humins application as dyes for sensitized solar cells and for further materials and composites preparations were carried out. This thesis not only proves how promising humins materials are, highlighting their major advantages and the points of s trength that would be competitive on the market, but also aims to increase the interest around these materials. This thesis offers a good starting point for further and future valorizations, with advantages that will involve the environment along with the entire Biorefinery
Mangin, Floriane. "Synthèses de nouveaux tensioactifs éco-compatibles : étude de synthèses catalytiques et radicalaires en milieu micellaire". Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2224/document.
Pełny tekst źródłaBased on concepts of sustainable development and green chemistry, one of the alternatives envisioned by chemists is to substitute organic solvents, which can be dangerous and toxic, for greener solvents. Water is the best candidate for this substitution because it is thesafest and cheapest solvent in our countries : this solvent is non-toxic, non-flammable and inexplosive. In order to overcome the low solubility of most of organic compounds in water, surfactants can be used to improve the reaction yields. Media thus obtained are difficult to recycle because they require high dilution in order to break aggregates and recover products. Therefore, using photo-switchable surfactants is a good alternative because they can organize/disorganize by light irradiation. Organic compounds could be recovered after reactions and the recyclability of the medium can be improved. For this purpose, we synthesized three surfactants having an azobenzene moiety (anionic,cationic, nonionic), to test them in micellar catalysis. Some of these surfactants, after determining their physicochemical properties (CMCs and UV-visible spectra) were studied in a pallado-catalyzed reaction, the allylic substitution of Tsuji-Trost. We have successfully demonstrated the value of using a photo-switchable surfactant compared to commercialones in terms of yields and recyclability. In other hand, Barton decarboxylation, described for the first time in 1983, permits the formation of alkanes from carboxylic acids, using tin derivatives as hydrogen donors. Since then, this reaction has always been used as a key step in total synthesis of natural compounds in organic solvents. In addition, historically, this reaction was carried out by conventional activation (heat or ultraviolet light). Therefore, we decided to study this radical decarboxylation in water, in the presence of surfactants and using unconventional activation modes : microwave and ultrasound. Moreover, instead of tin, we preferred the use of N-phenylmaleimide, already known and studied as a radical trap, to obtain maleimides substituted by carbon chains. Yields obtained in micellar media were found tobe at least as good as in organic solvents
Gicquiaud, Julien. "Activation électrophile des alcynes vis-à-vis de l'attaque de nucléophiles carbonés catalysée par les acides de Bronsted : éco-conception et analyse du cycle de vie d'une nouvelle voie catalytique". Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0446.
Pełny tekst źródłaThis manuscript presents a study of cycloisomerization reactions, in accordance with the principles of green chemistry, based on the electrophilic activation of alkynes in the presence of achiral and chiral Brønsted acids via the formation of vinyl cation intermediates and the attack of the latter by carbon nucleophiles. The use of a catalytic amount of Brønsted acid with 2-alkynylbiaryl substrates delivered phenanthrene derivatives in good to excellent yields under mild reaction conditions. High catalytic activities, along with differences of chemo- and regioselectivity were observed when comparing to carbophilic metallic Lewis acid catalysts.The use of a directing group substituting the alkyne function, the 2-naphtholyle moiety, resulted in increased basicity of the alkyne, increased regioselectivity of the protonation step and the creation of hydrogen bonding with the catalyst, paving the way for the development of an asymmetric version of cycloisomerization reactions. In the presence of chiral Brønsted acids, such as N-triflylphosphoramides, the enantioselective synthesis of atropisomeric phenanthrenes was achieved with excellent yields and good enantiomeric excesses. An intermolecular reaction of hydroarylation of alkynes in the presence of the same catalysts delivered atropisomeric alkenes in excellent yields and enantioselectivities.The use of a directing group on the alkyne also allowed for the first time the development of Brønsted acid-catalyzed enyne cycloisomerization reactions involving the initial, selective protonation of the alkyne function. A variety of polycyclic scaffolds were obtained by this methodology with high yields and moderate enantioselectivities.The cycloisomerization catalytic reaction is known to chemists as a model reaction respecting several principles of green chemistry such as atomic economy, waste limitation and the principle of catalysis.However, no quantitative evidence is provided by chemists to promote the sustainability of the methodologies developed in their laboratories. Several monocriteria parameters and multi-criteria methods have been developed to try to address this environmental quantification issue. However, the interest in developing new catalytic systems should be associated with the development of more environmentally efficient processes in addition to knowing if it is more chemically efficient.Life cycle assessment (LCA) is the standardized reference method for quantifying the environmental impacts (e. g. climate change, toxicity, resource use) of a product over its life cycle. LCA has already been applied to green chemistry developments to compare the durability of chemical reactions, or for eco-design applications. However, it is not trivial to use LCA at the laboratory scale because it requires (i) data that are difficult for the chemist to access (ii) additional modeling steps to estimate potential impacts at the industrial scale (iii) requires the expertise of a LCA practitioner. [...]
Bruniaux, Sophie. "Nouveaux hydrotropes biosourcés : conception, synthèse et propriétés physico-chimiques en milieu hautement salin". Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2378.
Pełny tekst źródłaHistorically, chemical industry was based on fossil ressources, but alternative processes have been developed since the nineteens to be green and to answer to the environmental eco-responsibility questions. In this context, a collaboration work between three public laboratories and the SAS PIVERT emerged to find new biosourced hydrotropes starting from various polyols – such as glycerol, main byproduct of the fuel production – and resistant to high saline conditions. A specific design was defined by our physico-chemical partner for the synthesis of hydrotropes. Differents approaches were used to obtain these compounds, such as a new method of methylation using sub/supercritical methanol with a phase of optimization, and another about the scope of the reaction that reduced the reaction steps. The transposition of the reductive alkylation of various alcohols was also realized – using a heterogeneous catalysis – with the obtention of various ethers, in continuous flow conditions, by the intermediate of the use of the HCube Pro from ThalesNano
Tremblay-Morin, Jean-Philippe. "Porphyrines cationiques romées pour la radiothérapie et chimie verte catalysée". Mémoire, Université de Sherbrooke, 2005. http://savoirs.usherbrooke.ca/handle/11143/3864.
Pełny tekst źródłaTremblay-Morin, Jean-Philippe. "Porphyrines cationiques romées pour la radiothérapie et chimie verte catalysée /". [S.l. : s.n.], 2005.
Znajdź pełny tekst źródłaKsiążki na temat "Chimie verte et durable"
Ontario. Esquisse de cours 12e année: Chimie sch4c cours précollégial. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Chimie sch4 cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: L'église et la culture hre4m. Vanier, Ont: CFORP, 2007.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Politique canadienne et mondiale cpw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Exploration et création artistique aea4o cours ouvert. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Philosphie; approches et problématiques hzt4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Individus, familles et sociétés hhs4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Vie active et santé ppl4o cours ouvert. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Changements et défis sociaux hsb4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Géométrie et mathématiques discrètes mga4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaCzęści książek na temat "Chimie verte et durable"
Ducamp, Christine. "La chimie verte". W Développement durable et autres questions d'actualité, 145–62. Éducagri éditions, 2011. http://dx.doi.org/10.3917/edagri.legar.2011.01.0145.
Pełny tekst źródła"1 Problématique du développement durable et chimie". W Chimie verte, 1–34. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2002-3-002.
Pełny tekst źródła"1 Problématique du développement durable et chimie". W Chimie verte, 1–34. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-2002-3.c002.
Pełny tekst źródłaBernard, Jean-Louis. "Chapitre 9 : Biocontrôle, chimie et protection des plantes : opposition et complémentarité". W Chimie et agriculture durable, 107–22. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c012.
Pełny tekst źródłaFougeroux, André. "Chapitre 2 : Quelle agriculture voulons-nous ?" W Chimie et agriculture durable, 29–36. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c005.
Pełny tekst źródła"Avant-propos". W Chimie et agriculture durable, 9–12. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c002.
Pełny tekst źródła"Ont contribué à la rédaction de cet ouvrage". W Chimie et agriculture durable, 5–6. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c001.
Pełny tekst źródła"BIBLIOGRAPHIE". W Chimie et agriculture durable, 189–92. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c017.
Pełny tekst źródłaRegnault-Roger, Catherine. "Chapitre 1 : Agriculture et chimie : une synergie plus que séculaire !" W Chimie et agriculture durable, 19–28. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c004.
Pełny tekst źródłaRabilloud, Benoît. "Chapitre 5 : Attentes des consommateurs, besoins des agriculteurs : les enjeux de transformation de l’agriculture". W Chimie et agriculture durable, 59–64. EDP Sciences, 2022. http://dx.doi.org/10.1051/978-2-7598-2754-1.c008.
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