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Academic literature on the topic 'Polymères hydrophobes'
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Journal articles on the topic "Polymères hydrophobes"
Lefevre, Benoit, Anthony Saugey, and Gérard Vigier. "Intrusion-extrusion d'eau dans les polymères mésoporeux hydrophobes." Revue des composites et des matériaux avancés 14, no. 3 (December 23, 2004): 255–64. http://dx.doi.org/10.3166/rcma.14.255-264.
Full textSabba, Nassila, Omar Arous, and Djamel Eddine Akretche. "Extraction du plomb (II) par des membranes polymères à inclusion en utilisant l’Aliquat 336 comme transporteur." Revue des sciences de l’eau 26, no. 2 (June 3, 2013): 107–17. http://dx.doi.org/10.7202/1016062ar.
Full textDissertations / Theses on the topic "Polymères hydrophobes"
Soisson, Arnaud. "Développement de polymères hydrophobes résistants à haute température pour l’encapsulation de module de puissance." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV024.
Full textThe aim of this work is to develop new hydrophobicpolymeric materials for the protection of semi-conductorcomponents. These materials must withstand high temperature,strong electric fields and aggressive atmospheres such asmoisture. In this context, addition polyimides emerged as themost suitable polymers for the intended application. Thesynthesis of the encapsulant being made directly in the powermodules, it must be solvent free. Thus, we have developed newsolvent free synthesis routes of poly(aminobismaleimide)s andpoly(bismaleimide)s.First of all, different aliphatic diamines were used as a reactivesolvent in the synthesis of poly(aminobismaleimide)s to atemperature well below the melting point of the usedbismaleimide (m.p. > 300 °C). A first series of 3 newpoly(aminobismaleimide)s, crosslinked from 70 to 95 %, hasthus been made. From these first syntheses, 10 newpoly(aminobismaleimide)s have been developed. For 9 of them,aromatic diamines were used and, for the latter, a siloxanediamine. These results demonstrate that this process can begeneralized.Secondly, poly(bismaleimide)s were synthesized, still withoutany solvent. In order to do so, the syntheses of four newbismaleimides, liquid at room temperature, have beendeveloped. These compounds have an aliphatic or siloxanestructure in which a pyromellitic pattern has been or notintroduced. Their polymerization initiated with the suitable radicalinitiator leads to the formation of materials without the use of anysolvent.Depending on the choice of reagents, thermosetting materials orelastomers are obtained. These latter seem more suitable for thedesired application because, on one hand, the low viscosity ofthe reaction mixtures enables their application in a powermodule without any difficulty and, on the other hand, theirhydrophobic behaviour is stronger. One of them has aparticularly attractive thermal stability at 250 ° C and amechanical relaxation temperature almost out of the workingtemperature range. Therefore, this material may be used asencapsulant
Rocco, Caroline. "Polymérisation sous rayonnement UV et lumière naturelle de réseaux de polymères interpénétrés pour des revêtements auto-régénérants." Thesis, Mulhouse, 2015. http://www.theses.fr/2015MULH8175.
Full textInterpenetrating polymer networks (IPNs) combine properties of their different components. They exhibit high mechanical strength, good thermal stability and chemical resistance. They are thus interesting to overcome the limitations of stand-alone networks. One of the easy and efficient ways to produce IPNs involves light curing. Considering these features, photocured IPNs are very attractive materials for functional polymeric surfaces in the coating industry. This thesis reports the development of hydrophobic coatings showing self-replenishing properties upon surface damage. This concept relies on the segregation of functional groups chemically bound to a light-cured IPN network towards the surface, thanks to the energy difference between surface and bulk. Surface functionality self-repairing mechanism requires a homogeneous distribution and a sufficient mobility of functional groups in the polymeric network. Self-replenishing hydrophobic surfaces based on a UV-cured acrylate network have been firstly developed in order to demonstrate the proof of concept. In a second part, UV and visible-light cured IPNs combining two polymers (acrylates and epoxides) with low and high Tgs (self-replenishing together with mechanical resistance), showing different morphologies have been investigated. Finally, self-replenishing hydrophobic surfaces with enhanced Tg more suitable for industrial applications have been obtained
Morel-Limouzin, Corinne. "Structuration en solution de polymères amphiphiles très hydrophobes cationiques : latex, vésicules, lamelles." Paris 6, 2004. http://www.theses.fr/2004PA066478.
Full textCadix, Arnaud. "Synthèse et caractérisation des propriétés de polymères amphiphiles rhéo-épaississants." Paris 6, 2002. http://www.theses.fr/2002PA066483.
Full textLocatelli-Champagne, Clémentine. "Encapsulation de molécules hydrophobes par des polyélectrolytes amphiphiles : relation structure-propriétés." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://pastel.archives-ouvertes.fr/pastel-00733037.
Full textMalinova, Alexandra. "Etudes sur la préparation et la modification de membranes hydrophobes." Montpellier 2, 1996. http://www.theses.fr/1996MON20156.
Full textMiquelard-Garnier, Guillaume. "Synthèse et propriétés mécaniques d'hydrogels polyélectrolytes modifiés par des groupements hydrophobes." Paris 6, 2007. https://pastel.archives-ouvertes.fr/tel-00343871.
Full textHartmann, Patrice. "Relations structure-propriétés de surface dans les polymères acryliques perfluoroalkylés." Montpellier 2, 2002. http://www.theses.fr/2002MON20053.
Full textSchott, Marc-Alexandre. "Encapsulation moléculaire de molécules actives hydrophobes par des polymères amphiphiles aléatoires à base de poly(acide diméthylmalique)." Thesis, Montpellier 1, 2012. http://www.theses.fr/2012MON13510/document.
Full textLots of drugs meet some problems because of their poor water-solubility : poor bioavailability, desactivating metabolization, side effects. To overcome these problems, some amphiphilic polyelectrolytes have already been studied. They increased the apparent water-solubility of hydrophobic compounds, but were toxic or not degradable, thus could not be eliminated from the body. In this work, we describe the synthesis of various substituted malolactones. Anionic ring opening copolymerization of these lactones yielded random amphiphilic polyanions with varying and controlled hydrophobization ratio and aliphatic and aromatic side chains with different lengths. These polymers increase the apparent water-solubility of hydrophobic compounds. A synergy between hydrophobic and electrostatic interactions has been demonstrated when the compound is cationic. The apparent solubility of anti-infectious drugs could thus be increased by several orders of magnitude. Under intravenous injection conditions (NaCl 9 g.L-1 and pH = 7,5), these polymers form preferentially intramolecular micelles, which are not sensitive to dilution effects. As a consequence, such a drug transport system would yield no premature release. Being also degradable, these polymers could release the drug and be eliminated from the body. They meet all main physico-chemical criteria to become a drug transport system
Podhajecka, Klara. "Associating water-soluble copolymers : the role of hydrophobic side-chains on the self-assembling properties of grafted macromolecules." Paris 6, 2005. http://www.theses.fr/2005PA066239.
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