Littérature scientifique sur le sujet « Pointe polymère »
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Articles de revues sur le sujet "Pointe polymère"
Pelletier, H., C. Gauthier et R. Schirrer. « Analyses des sillons viscoélastiques lors d'un contact entre une pointe rigide et la surface d'un polymère ». Matériaux & ; Techniques 96, no 3 (2008) : 111–20. http://dx.doi.org/10.1051/mattech:2008026.
Texte intégralChen, Weifeng, Shaona Chen, Weimin Hu, Dejiang Li et Zhongxu Dai. « The Preparation Approaches of Polymer/graphene Nanocomposites and their Appilcation Research Progress as Electrochemical Sensors ». Journal of New Materials for Electrochemical Systems 20, no 4 (31 octobre 2017) : 205–21. http://dx.doi.org/10.14447/jnmes.v20i4.356.
Texte intégralMa, Liang. « Comparing the Principles of Reversible Covalent Chemistry and Supramolecular Chemistry Points to New Directions in the Development of Polymers ». Highlights in Science, Engineering and Technology 26 (30 décembre 2022) : 446–54. http://dx.doi.org/10.54097/hset.v26i.4025.
Texte intégralHu, Jin Lian, et Jing Lu. « Shape Memory Polymers in Textiles ». Advances in Science and Technology 80 (septembre 2012) : 30–38. http://dx.doi.org/10.4028/www.scientific.net/ast.80.30.
Texte intégralValenzuela, Loreto M., Doyle D. Knight et Joachim Kohn. « Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets ». International Journal of Biomaterials 2016 (2016) : 1–10. http://dx.doi.org/10.1155/2016/6273414.
Texte intégralZore, Ashish, Peng Geng, Yuwei Zhang et Michael R. Van De Mark. « Defining the Collapse Point in Colloidal Unimolecular Polymer (CUP) Formation ». Polymers 14, no 9 (7 mai 2022) : 1909. http://dx.doi.org/10.3390/polym14091909.
Texte intégralBrowne, Emer, Zelalem A. Worku et Anne Marie Healy. « Physicochemical Properties of Poly-vinyl Polymers and Their Influence on Ketoprofen Amorphous Solid Dispersion Performance : A Polymer Selection Case Study ». Pharmaceutics 12, no 5 (8 mai 2020) : 433. http://dx.doi.org/10.3390/pharmaceutics12050433.
Texte intégralNizina, T. A., Dmitrii R. Nizin, N. S. Kanaeva, N. M. Kuznetsov et D. A. Artamonov. « Applying the Fractal Analysis Methods for the Study of the Mechanisms of Deformation and Destruction of Polymeric Material Samples Affected by Tensile Stresses ». Key Engineering Materials 799 (avril 2019) : 217–22. http://dx.doi.org/10.4028/www.scientific.net/kem.799.217.
Texte intégralPeram, Shyamsundar Reddy, Madhava Rao Byraboina, Narendran Dama, Suryanarayana Murthy Kurivella et Jagadish Mandava. « An Overview of Thermal Behavior of Polymers : Lead Acid Battery Applications ». European Journal of Engineering and Technology Research 7, no 1 (10 janvier 2022) : 12–17. http://dx.doi.org/10.24018/ej-eng.2022.7.1.2704.
Texte intégralPeram, Shyamsundar Reddy, Madhava Rao Byraboina, Narendran Dama, Suryanarayana Murthy Kurivella et Jagadish Mandava. « An Overview of Thermal Behavior of Polymers : Lead Acid Battery Applications ». European Journal of Engineering and Technology Research 7, no 1 (10 janvier 2022) : 12–17. http://dx.doi.org/10.24018/ejeng.2022.7.1.2704.
Texte intégralThèses sur le sujet "Pointe polymère"
Pham, Thi Nhung. « Fabry-Perot interferometer based on end-of-fiber polymer microtip for chemical sensing ». Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0006.
Texte intégralFabry−Perot interferometers (FPIs) have received a significant attention for their use in sensor applications. FPIs consist of an optical cavity with separate parallel reflecting surfaces which reflect incident light, resulting in an optical interferometric signal. The FPI signal depends on the distance between the reflecting surfaces and the refractive index of the cavity medium, which are sensitive to variation of environment humidity, temperature, pressure, and material. FPIs can be attached to optical fibers to form compact fiber optic FPI-based sensors in which the optical fiber works as a waveguide for both incident and reflected signal. This thesis presents FPI-based chemical sensors incorporating a polymer microtip located at the end of an optical fiber and characterizes their sensing capabilities for humidity, water, and chemical targets.Firstly, we develop a pentaerythritol triacrylate (PETA) tip on the facet of an optical fiber by a self-guiding photopolymerization. One end of the optical fiber is placed inside a PETA droplet and the self-guiding photopolymerization of PETA is actuated by a 375 nm laser injected to the other end of the fiber. The optimal conditions to form a straight and mechanically stable PETA tip are 1.0 μW of laser power × 1.0 second of exposure time. However, the PETA chains do not completely polymerize during this self-polymerization, leading to an unstable dynamic resonant frequency of the tip. Thus, the tip needs a post-polymerization under a UV 365 nm lamp to achieve a stable dynamic characteristic, which is applicable for further sensing applications.Secondly, we demonstrate the PETA tip as an effective sensor to detect humidity. The PETA tip acts as an optical cavity formed between the fiber-core/PETA and the PETA/environment interface, resulting in a clear interferometric signal. The FPI signal of the tip is highly sensitive to humidity in the air. This is due to hydroxyl groups within the PETA structure, which strongly absorb water molecules in the humid air and significantly swell the tip. The length and/or the refractive index of the tip are therefore changed, resulting in a FPI shift. The tip exhibits a consistent sensitivity of 90pm/%RH, equivalent to a relative sensitivity of 104 ppm/%RH in the humidity range from 30 to 80%. The sensing performance is highly reproducible and stable. Furthermore, the cross effect of the temperature is negligible, indicating a great practical potential for the devices.Next, we apply the FPI-based PETA tips to determine the water content in glycerol and ethylene glycol solutions. The FPI signal of the PETA tip shifts nonlinearly towards longer wavelengths as the water content increases from 0 to 100 wt.%. The shift in the FPI signal occurs due to the contraction in the tip length, which is linked to the loss of water inside the PETA structure caused by the hydrophilic solutions. When the water contamination is below 10 wt.%, the tip shows a sensitivity of 394 pm/wt.% and 226 pm/wt.% for glycerol and ethylene glycol solutions, respectively. Therefore, the FPI-based PETA tip shows a great potential in determining water content in hydrophilic aqueous solutions, including hydrocarbons.Finally, a tip consisting of a PETA core and a shell of molecularly imprinted polymers (MIPs) is developed for detecting Dansyl-L-phenylalanine. The PETA tip is initially fabricated using the self-guiding polymerization and MIPs are then copolymerized to form a thin shell layer around the PETA tip. Upon the selective binding of Dansyl-L-phenylalanine, the refractive index of the MIP layer changes, leading to the change in the FPI signal of the whole PETA/MIP tip. This straightforward and affordable method offers new innovative possibilities for creating FPI-based MIP fiber optic sensors, which can be applied for a wide range of analytes, including both non-fluorescent and fluorescent targets
Piluso, Pierre. « Développement de nouvelles formulations à base de polymères fonctionnels pour la mise au point de papiers techniques à propriétés spécifiques ». Electronic Thesis or Diss., Lyon, 2018. http://www.theses.fr/2018LYSE1090.
Texte intégralThis PhD work dealt with the study of the acetalization reaction of polyvinyl alcohol (PVA) in aqueous medium by non-water soluble aldehydes bearing long alkyl chains and a vinyl end group such as 10-undecenal in specific conditions: in 8 wt% concentrated PVA solutions and with low acetalization degree (AD) from 0.33 mol% to 5.6 mol%. The main purpose of this grafting reaction is to obtain an activated surface on water casted polymer films. First, the impact of reactants concentrations, pH and reaction atmosphere on the acetalization kinetics was studied with a model compound first, pentane-2,4-diol, then with PVA. A new 1H NMR titration method allowed to carry out in situ quantification of the amount of reactant and of grafted aldehyde.On main objectives of this work was to obtain the highest DA while keeping PVA solutions viscosity as low as possible to keep a sufficiently low solution viscosity for a solvent cast process. The impact of AD by 10-undecenal on PVA solution organization and on the rheological properties of 8 wt% PVA aqueous solutions were investigated first until 1.85 mol% AD. A surface vinyl groups quantification method was developed through chemical labeling of the vinyl groups at the surface of solvent casted PVA films and 1H NMR titration of the labels. This method allowed the study of vinyl groups orientation toward the surface of acetalized PVA films until 1.48 mol% AD.The influence of PVA molar mass and of aldehyde alkyl chain length on acetalization kinetics and solutions viscosity was also studied. The use of a low molar mass polymer appeared to be an efficient way to obtain highly modified films while keeping a low 8 wt% acetalized PVA solution viscosity
Piluso, Pierre. « Développement de nouvelles formulations à base de polymères fonctionnels pour la mise au point de papiers techniques à propriétés spécifiques ». Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1090.
Texte intégralThis PhD work dealt with the study of the acetalization reaction of polyvinyl alcohol (PVA) in aqueous medium by non-water soluble aldehydes bearing long alkyl chains and a vinyl end group such as 10-undecenal in specific conditions: in 8 wt% concentrated PVA solutions and with low acetalization degree (AD) from 0.33 mol% to 5.6 mol%. The main purpose of this grafting reaction is to obtain an activated surface on water casted polymer films. First, the impact of reactants concentrations, pH and reaction atmosphere on the acetalization kinetics was studied with a model compound first, pentane-2,4-diol, then with PVA. A new 1H NMR titration method allowed to carry out in situ quantification of the amount of reactant and of grafted aldehyde.On main objectives of this work was to obtain the highest DA while keeping PVA solutions viscosity as low as possible to keep a sufficiently low solution viscosity for a solvent cast process. The impact of AD by 10-undecenal on PVA solution organization and on the rheological properties of 8 wt% PVA aqueous solutions were investigated first until 1.85 mol% AD. A surface vinyl groups quantification method was developed through chemical labeling of the vinyl groups at the surface of solvent casted PVA films and 1H NMR titration of the labels. This method allowed the study of vinyl groups orientation toward the surface of acetalized PVA films until 1.48 mol% AD.The influence of PVA molar mass and of aldehyde alkyl chain length on acetalization kinetics and solutions viscosity was also studied. The use of a low molar mass polymer appeared to be an efficient way to obtain highly modified films while keeping a low 8 wt% acetalized PVA solution viscosity
Torri, Niccolò. « Phénomènes de localisation et d’universalité pour des polymères aléatoires ». Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10114/document.
Texte intégralThe pinning model describes the behavior of a Markov chain in interaction with a distinguished state. This interaction can attract or repel the Markov chain path with a force tuned by two parameters, h and β. If β = 0 we obtain the homogeneous pinning model, which is completely solvable. The disordered pinning model, i.e. when β > 0, is most challenging and mathematically interesting. In this case the interaction depends on an external source of randomness, independent of the Markov chain, called disorder. The interaction is realized by perturbing the original Markov chain law via a Gibbs measure, which defines the Pinning Model. Our main aim is to understand the structure of a typical Markov chain path under this new probability measure. The first research topic of this thesis is the pinning model in which the disorder is heavy-tailed and the return times of the Markov chain have a sub-exponential distribution. In our second result we consider a pinning model with a light-tailed disorder and the return times of the Markov chain with a polynomial tail distribution, with exponent α > 0. It is possible to show that there exists a critical point, h(β). Our goal is to understand the behavior of the critical point when β -> 0. The answer depends on the value of α and in the literature there are precise results only for the case α < ½ et α > 1. We show that for α ∈ (1/2, 1) the behavior of the pinning model in the weak disorder limit is universal and the critical point, suitably rescaled, converges to the related quantity of a continuum model
Massines, Françoise. « Mise au point d'une technique ultrasonore pour la caracterisation des polymeres en fonction de la temperature et de la pression ». Toulouse 3, 1987. http://www.theses.fr/1987TOU30030.
Texte intégralBoivin, Mathieu. « Contrôle de la morphologie dans les cellules solaires hybrides polymère-points quantiques colloïdaux ». Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/27761/27761.pdf.
Texte intégralGargouri, Myriem. « Mise au point de nanoparticules polycationiques pour le transfert de gènes ». Thesis, Nancy 1, 2010. http://www.theses.fr/2010NAN10061/document.
Texte intégralThe aim of this study is to develop non-viral delivery systems for DNA. Nanoparticles were prepared by using nanoprecipitation and double emulsion methods. The nanoparticles were characterized physicochemical. Cytotoxicity and transfection efficiency of nanoparticles were performed in different cell lines. Cytotoxicity tests based on mitochondrial activity revealed that all type of nanoparticles had limited cytotoxicity, but depending on both the cell type and the nanoparticles concentration. In order to increase transfection efficiency, photochemical internalization was used to improve endosomal release of nanoparticles. All the results revealed the difficulty to elaborate an efficient DNA vector presenting a low cytotoxicity
Leblanc, Jonathan. « Étude et mise au point d'un procédé d'élaboration de mélanges à base de polyamides combinant un pilote de polycondensation et des mélangeurs statiques ». Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL046N.
Texte intégralThe aim of this work is to develop a process, which enables to blend polyamide in molten state with others polymers, directly at the outlet of a polycondensation reactor. Contrary to currently industrial processes, no remelting stage is needed in this one. The study has been carried out with polyamide 66 / polyethylene glycol blends (products with very different viscosities) and with polyamide 66 / ethylene propylene blends (products with similar viscosities), with or without polypropylene-graft-maleic-anhydride as interfacial agent. The first part of this work deals with the characterization of the dispersions obtained for these blends when their elaborations are carried out using conventional processes. Only few studies are available on blends, which exhibit a large difference between components viscosity. This work led us to develop a model to correlate, in this case, the dispersed phase size to the main operating conditions of each processes.The second part is dedicated to the design and the realization of an experimental installation, which is composed of polycondensation plant equipped, at the outlet of reactors, with a blending device based on static mixers technology. Its operation has been tested and experiments have been carried out in order to study the influence of the different processing parameters on blends morphology. The comparison of the results with those previously obtained using conventional processes allowed then to precise the performances and the limits of the process developed in this study
Gerard, Eric-Jack. « Synthese, caracterisation et comportement de polyurethannes hydrophiles : etude du mecanisme de la polycondensation reticulante ». Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13192.
Texte intégralTran, Van-Thanh. « Mise au point de microparticules biodégradables en vue de la libération prolongée d'une protéine ». Angers, 2010. http://www.theses.fr/2010ANGE0076.
Texte intégralLivres sur le sujet "Pointe polymère"
Tieu, Doan. A dynamic optimization package and the application of an end-point collocation method to batch polymer reactors. Ottawa : National Library of Canada = Bibliothèque nationale du Canada, 1992.
Trouver le texte intégralGranados, Manuel Laopez, et David Martin Alonso. Furfural : An Entry Point of Lignocellulosic Biomass to Renewable Chemicals, Polymers, and Biofuels. World Scientific Publishing Co Pte Ltd, 2018.
Trouver le texte intégralLuh, Song-ping. The cloud point composition and flory-huggins interaction parameters of polyethylene glycol and sodium lignin sulfonate in water-ethanol mixtures. 1987.
Trouver le texte intégralSIMON, Guilhem, dir. Spectroscopies vibrationnelles. Editions des archives contemporaines, 2020. http://dx.doi.org/10.17184/eac.9782813002556.
Texte intégralOptics of Nanomaterials. Taylor & Francis Group, 2010.
Trouver le texte intégralGavrilenko, Vladimir I. Optics of Nanomaterials. Jenny Stanford Publishing, 2019.
Trouver le texte intégralGavrilenko, Vladimir I. Optics of Nanomaterials. Taylor & Francis Group, 2019.
Trouver le texte intégralGavrilenko, Vladimir I. The Optics of Nanomaterials. World Scientific Publishing Company, 2007.
Trouver le texte intégralEpstein, Irving R., et John A. Pojman. An Introduction to Nonlinear Chemical Dynamics. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195096705.001.0001.
Texte intégralBanerjee, Diptonil, Amit Kumar Sharma et Nirmalya Sankar Das. Nano Materials Induced Removal of Textile Dyes from Waste Water. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/97898150502951220101.
Texte intégralChapitres de livres sur le sujet "Pointe polymère"
Gooch, Jan W. « Nodal Points ». Dans Encyclopedic Dictionary of Polymers, 487. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_7929.
Texte intégralGooch, Jan W. « Flash Points ». Dans Encyclopedic Dictionary of Polymers, 310. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5039.
Texte intégralGooch, Jan W. « Brittle Point ». Dans Encyclopedic Dictionary of Polymers, 94. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1598.
Texte intégralGooch, Jan W. « Clear Point ». Dans Encyclopedic Dictionary of Polymers, 147. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2441.
Texte intégralGooch, Jan W. « Cloud Point ». Dans Encyclopedic Dictionary of Polymers, 148. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_2467.
Texte intégralGooch, Jan W. « Critical Point ». Dans Encyclopedic Dictionary of Polymers, 179. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3094.
Texte intégralGooch, Jan W. « Curie Point ». Dans Encyclopedic Dictionary of Polymers, 187. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3197.
Texte intégralGooch, Jan W. « Dew Point ». Dans Encyclopedic Dictionary of Polymers, 203. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3467.
Texte intégralGooch, Jan W. « Set Point ». Dans Encyclopedic Dictionary of Polymers, 655. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10488.
Texte intégralGooch, Jan W. « Silver Point ». Dans Encyclopedic Dictionary of Polymers, 666. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10671.
Texte intégralActes de conférences sur le sujet "Pointe polymère"
Shankar, Vivek, Shekhar Sunit, Robert Zagitov, Abhishek Kumar Gupta, Suresh Kumar, Ritesh Kumar, Kumarish Pahari, Rahul Agarwal, Petro Nakutnyy et Santhosh Veerabhadrappa. « Evaluation of Alternative Polymers for Mangala Polymer Flood ». Dans ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211461-ms.
Texte intégralZhang, Yadong, Liming Wang, Tatsuo Wada et Hiroyuki Sasabe. « Carbazole Main-Chain Polymers with Di-Acceptor-Substituents for Nonlinear Optics ». Dans Organic Thin Films for Photonic Applications. Washington, D.C. : Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wd.8.
Texte intégralZeni, Luigi. « Surface plasmon resonance in polymer optical fibers for point of care analysis ». Dans Biophotonics in Point-of-Care III, sous la direction de Michael T. Canva, Ambra Giannetti, Julien Moreau et Hatice Altug. SPIE, 2024. http://dx.doi.org/10.1117/12.3016714.
Texte intégralGross, K. A., F. Y. Yan, C. C. Berndt et G. P. Simon. « Repair of Multi-Layered, Polymer-Based Thermal Spray Coatings ». Dans ITSC2005, sous la direction de E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p0074.
Texte intégralMorozov, Yevhenii M., Nestor Gisbert Quilis, Fiona Diehl, Sven Klees, Jonas Grün, Ulrich Jonas et Jakub Dostálek. « One- and two-photon crosslinked polymer hydrogel microstructures for optical spectroscopy and biosensing applications ». Dans Biophotonics in Point-of-Care II, sous la direction de Michael T. Canva, Ambra Giannetti, Julien Moreau et Hatice Altug. SPIE, 2022. http://dx.doi.org/10.1117/12.2621516.
Texte intégralHasler, Roger, Ivana Vísová, Markéta Vrabcová, Milan Houska, Monika Spasovová, Hana Lísalová et Jakub Dostálek. « Fiber optic probe with antifouling polymer brush biointerface for bi-modal biosensing in complex liquid samples ». Dans Biophotonics in Point-of-Care II, sous la direction de Michael T. Canva, Ambra Giannetti, Julien Moreau et Hatice Altug. SPIE, 2022. http://dx.doi.org/10.1117/12.2621192.
Texte intégralSeright, Randall Scott, et Dongmei Wang. « Impact of Salinity, Hardness, Lithology, and ATBS Content on HPAM Polymer Retention for the Milne Point Polymer Flood ». Dans SPE Western Regional Meeting. SPE, 2023. http://dx.doi.org/10.2118/212946-ms.
Texte intégralMaji, Debashis, et Soumen Das. « Simulation and feasibility study of flow sensor on flexible polymer for healthcare application ». Dans 2013 IEEE Point-of-Care Healthcare Technologies (PHT). IEEE, 2013. http://dx.doi.org/10.1109/pht.2013.6461302.
Texte intégralDennar, Linda, Mohammed Amro et Sven Reichmann. « Polymer Selection for Enhanced Oil Recovery in a Niger-Delta Formation Via Laboratory Experiments ». Dans SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/211928-ms.
Texte intégralde Mello, J. C. « Plastic electronics for point-of-care diagnostics ». Dans IET Seminar on Polymer Electronics : Towards the Future. IET, 2009. http://dx.doi.org/10.1049/ic.2009.0064.
Texte intégralRapports d'organisations sur le sujet "Pointe polymère"
Hayes, Michael. Introduction of Continuous Fiber-reinforced Polymer : A New Additive Manufacturing Path for Aerospace. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, août 2023. http://dx.doi.org/10.4271/epr2023019.
Texte intégralCommittee on Toxicology. New Approach Methodologies (NAMs) In Regulatory Risk Assessment Workshop Report 2020- Exploring Dose Response. Food Standards Agency, mars 2024. http://dx.doi.org/10.46756/sci.fsa.cha679.
Texte intégralAcosta, Felipe, et Guillermo Riveros. Repair of corroded steel girders of hydraulic steel structures (HSS) using fiber-reinforced polymers (FRP). Engineer Research and Development Center (U.S.), août 2023. http://dx.doi.org/10.21079/11681/47404.
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