Academic literature on the topic 'Amphiphilic polyelectrolytes'

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Journal articles on the topic "Amphiphilic polyelectrolytes"

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Szafraniec, Joanna, Małgorzata Janik, Joanna Odrobińska, and Szczepan Zapotoczny. "Nanocapsules templated on liquid cores stabilized by graft amphiphilic polyelectrolytes." Nanoscale 7, no. 12 (2015): 5525–36. http://dx.doi.org/10.1039/c5nr00064e.

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A surfactant-free method of preparation of nanocapsules templated on liquid cores using amphiphilic graft polyelectrolytes was developed. The nanocapsules were further coated with polyelectrolyte multilayers.
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Raffa, Patrizio. "Interactions between an Associative Amphiphilic Block Polyelectrolyte and Surfactants in Water: Effect of Charge Type on Solution Properties and Aggregation." Polymers 13, no. 11 (2021): 1729. http://dx.doi.org/10.3390/polym13111729.

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The study of interactions between polyelectrolytes (PE) and surfactants is of great interest for both fundamental and applied research. These mixtures can represent, for example, models of self-assembly and molecular organization in biological systems, but they are also relevant in industrial applications. Amphiphilic block polyelectrolytes represent an interesting class of PE, but their interactions with surfactants have not been extensively explored so far, most studies being restricted to non-associating PE. In this work, interactions between an anionic amphiphilic triblock polyelectrolyte
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Szafraniec, J., J. Odrobińska, and S. Zapotoczny. "Polymeric nanocapsules templated on liquid cores as efficient photoreactors." RSC Advances 6, no. 37 (2016): 31290–300. http://dx.doi.org/10.1039/c6ra00431h.

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Papagiannopoulos, Aristeidis, Maria Karayianni, Stergios Pispas, and Aurel Radulescu. "Formation of complexes in aqueous solutions of amphiphilic triblock polyelectrolytes of different topologies and an oppositely charged protein." Soft Matter 14, no. 15 (2018): 2860–69. http://dx.doi.org/10.1039/c8sm00208h.

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Balafouti, Anastasia, Aleksander Forys, Barbara Trzebicka, Angelica Maria Gerardos, and Stergios Pispas. "Anionic Hyperbranched Amphiphilic Polyelectrolytes as Nanocarriers for Antimicrobial Proteins and Peptides." Materials 16, no. 24 (2023): 7702. http://dx.doi.org/10.3390/ma16247702.

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This manuscript presents the synthesis of hyperbranched amphiphilic poly (lauryl methacrylate-co-tert-butyl methacrylate-co-methacrylic acid), H-P(LMA-co-tBMA-co-MAA) copolymers via reversible addition fragmentation chain transfer (RAFT) copolymerization of tBMA and LMA, and their post-polymerization modification to anionic amphiphilic polyelectrolytes. The focus is on investigating whether the combination of the hydrophobic characters of LMA and tBMA segments, as well as the polyelectrolyte and hydrophilic properties of MAA segments, both distributed within a unique hyperbranched polymer chai
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Zhu, Qin, Heng Yang, Yuanyuan Li, et al. "HP-DO3A-based amphiphilic MRI contrast agents and relaxation enhancement through their assembly with polyelectrolytes." Journal of Materials Chemistry B 4, no. 45 (2016): 7241–48. http://dx.doi.org/10.1039/c6tb01998f.

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HP-DO3A-based amphiphilic magnetic resonance imaging (MRI) contrast agents show electrostatic self-assembly ability with polyelectrolytes, good biocompatibility, and significant contrast enhancement in in vivo imaging.
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Isik, Mehmet, Ana M. Fernandes, Kari Vijayakrishna, Maria Paulis, and David Mecerreyes. "Preparation of poly(ionic liquid) nanoparticles and their novel application as flocculants for water purification." Polymer Chemistry 7, no. 8 (2016): 1668–74. http://dx.doi.org/10.1039/c5py02001h.

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Amphiphilic poly(ionic liquid) random copolymers that self-assemble into polymeric nanoparticles were prepared. The use of poly(ionic liquid) nanoparticles as flocculants enhanced the evolution rate of the sediment considerably in comparison with the parent polyelectrolytes.
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Guyomard, Aurélie, Guy Muller, and Karine Glinel. "Buildup of Multilayers Based on Amphiphilic Polyelectrolytes." Macromolecules 38, no. 13 (2005): 5737–42. http://dx.doi.org/10.1021/ma050867n.

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Millet, F., J. J. Benattar, and P. Perrin. "Vertical free-standing films of amphiphilic associating polyelectrolytes." Physical Review E 60, no. 2 (1999): 2045–50. http://dx.doi.org/10.1103/physreve.60.2045.

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Bayoudh, S., A. Laschewsky, and E. Wischerhoff. "Amphiphilic hyperbranched polyelectrolytes: a new type of polysoap." Colloid & Polymer Science 277, no. 6 (1999): 519–27. http://dx.doi.org/10.1007/s003960050419.

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Dissertations / Theses on the topic "Amphiphilic polyelectrolytes"

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Clark, Andrew Plater-Zyberk. "Self assembly of amphiphilic conjugated polyelectrolytes and nanostructured composite materials for optoelectronic applications." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1790348821&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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MILLET, FREDERIC. "Films libres verticaux de polyelectrolytes amphiphiles." Paris 6, 1999. http://www.theses.fr/1999PA066345.

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J'ai etudie le comportement interfacial d'une famille de polyelectrolytes amphiphiles associatifs, les polyacrylates de sodium modifies hydrophobes (hmpaana), greffes avec des chaines alkyles. J'ai tout d'abord etudie son adsorption a l'interface air/eau par mesures de tension de surface et reflectivite des rayons x. La vitesse d'adsorption est logarithmique, en bon accord avec les modeles theoriques. La cinetique d'adsorption est controlee par l'interaction sterique entre la couche d'adsorption en formation et les nouvelles molecules qui arrivent depuis le volume. J'ai obtenu les isothermes d
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Chaduc, Isabelle. "Synthèse d'agents RAFT macromoléculaires hydrophiles à base d'acide (méth)acrylique ou d'alginate pour l'élaboration de nanoparticules par polymérisation en émulsion." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10193/document.

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Ces travaux décrivent la synthèse de nanoparticules stabilisées par des polyélectrolytes d’originesynthétique (poly(acide (méth)acrylique)) ou naturelle (alginate) par polymérisation radicalairecontrôlée (PRC) de type RAFT en émulsion. Ce procédé est basé sur l’utilisation d’un polymèrehydrophile obtenu par RAFT (macroRAFT) qui est réactivé dans l’eau pour la polymérisation d’unmonomère hydrophobe. Des copolymères à blocs amphiphiles sont ainsi générés et s’auto-assemblent in situ pour former des nanoparticules. Dans un premier temps, nous avons cherché à conduire l’ensemble du procédé en mili
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Schott, 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.

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Nombre de principes actifs rencontrent des problèmes liés à leur faible hydrosolubilité : mauvaise biodisponibilité, métabolisation désactivante, effets secondaires. Pour contourner ce problème, des polyélectrolytes amphiphiles aléatoires ont déjà été étudiés. S'ils ont amélioré la solubilité apparente de composés hydrophobes, ils étaient parallèlement toxiques ou non dégradables, donc non éliminables par l'organisme. Dans ce mémoire, nous présentons la synthèse de différentes malolactones substituées. La copolymérisation anionique par ouverture de cycle de ces lactones a permis d'obtenir une
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Liu, Yuqing. "Synthesis and Characterization of Well-Defined, Amphiphilic, Ionic Copolymers." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1318440986.

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Guyomard, Aurélie. "Elaboration de films polyelectrolytes a base de polysaccharides amphiphiles : application à l’immobilisation de composés hydrophobes d’intérêt biologique." Rouen, 2007. http://www.theses.fr/2007ROUES064.

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Dans le but d’immobiliser des composés hydrophobes présentant un intérêt biologique à l’interface solide/liquuide, des fims minces à base de polysaccharides amphiphiles et de divers polycations ont été élaborés par la technique d’auto-assemblage couche par couche (lbl). Cette technique consiste à adsorber successivement sur un support chargé des couches de polycations et de polyanions. Les polysaccharides utilisés sont des carboxyméthylpululanes (CMP) porteurs de chaînons alkyle (CMP-τCn). L’influence des caractéristiques moléculaires eet macromoléculaires de ces dérivés (leur hydrophobie, leu
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Zaki, Afroditi Maria. "Molecular dynamics study of biomembrane interactions with biologically active polymers." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/molecular-dynamics-study-of-biomembrane-interactions-with-biologically-active-polymers(0e61623d-d73c-4f84-a1ef-6698026c4aa2).html.

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Among the great breakthroughs in nanoscience and nanotechnology is the emergence of synthetic polymers that demonstrate biological activity and thus can be exploited for biomedical applications, extending from agents in therapeutics to drug delivery and tissue engineering. A key factor in the fabrication of such polymeric materials is the ability to tune and control their properties. To this end, an insight into the mode of interactions with biological systems is imperative. Computer simulations have proved to be a valuable tool that can compliment experiments and provide -otherwise inaccessib
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Benjelloun, Abdesselam. "Synthèse et étude du comportement en milieu aqueux de nouveaux polymères amphiphiles cationiques dérivés de la 3-vinylpyridine." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL027N.

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Ce travail de recherche a été consacré à l'élaboration de nouveaux polymères amphiphiles cationiques dérivés de la 3-vinylpyridine. Ils sont obtenus par polymérisation radicalaire, en solution, des sels de pyridinium correspondants. Cette voie de synthèse nous a permis d'obtenir des homopolymères de structure bien définie et des copolymères finaux entièrement quaternisés. Pour mieux caractériser le comportement de ces polymères en solution aqueuse diluée, nous avons fait appel a différentes techniques physico-chimiques telles que la viscosimétrie, les effets de solvatochromie, la spectroscopie
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Melo, Letícia Dias de. "Partículas e filmes híbridos de polímeros e compostos de amônio quaternário com atividade antimicrobiana." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/9/9136/tde-04012012-153521/.

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Partículas e filmes híbridos de polímeros e compostos de amônio quaternário (CAQ) foram caracterizados quanto a propriedades físicas e atividade contra cepas de Pseudomonas aeruginosa ATCC 27853 e Staphylococcus aureus ATCC 25923. Partículas híbridas foram obtidas a partir de fragmentos de bicamada (BF) de brometo de dioctadecildimetilamônio (DODAB), adicionados consecutivamente de soluções de carboximetilcelulose (CMC) e cloreto de poli (dialildimetilamônio) (PDDA) e, a seguir, caracterizadas por espalhamento de luz dinâmico para determinação de distribuições de tamanho, diâmetro médio (Dz) e
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Bataille, Isabelle. "Propriétés associatives en solution aqueuse de dérivés alkylés de carboxyméthylpullulanes." Rouen, 1998. http://www.theses.fr/1998ROUES013.

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Le pullulane est un polysaccharide de fermentation caractérisé par un squelette neutre, hydrosoluble et flexible. Des dérivés anioniques et amphiphiles du pullulane ont été préparés par carboxyméthylation (0,76<DScooh<1,02) et addition de chaînes alkyle en C16 (entre 1,3 et 6,8%), en C8 (4 et 8%) ou en C16 et C4 (6 et 15%). Leurs DScooh et leurs taux de modification hydrophobe ont été déterminés par conductimétrie. Les études de viscosimétrie et de diffusion de la lumière en régime dilué à semi-dilué mettent en évidence dans NaCl 0,1 M des propriétés épaississantes marquées pour les dérivés mo
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Book chapters on the topic "Amphiphilic polyelectrolytes"

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Morishima, Yotaro. "Photoinduced electron transfer in amphiphilic polyelectrolyte systems." In Polyelectrolytes Hydrogels Chromatographic Materials. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/3-540-55109-3_2.

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Branham, Kelly D., and Charles L. McCormick. "Photophysical and Rheological Studies of Amphiphilic Polyelectrolytes." In Multidimensional Spectroscopy of Polymers. American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0598.ch032.

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Borisov, Oleg V., Ekaterina B. Zhulina, Frans A. M. Leermakers, Matthias Ballauff, and Axel H. E. Müller. "Conformations and Solution Properties of Star-Branched Polyelectrolytes." In Self Organized Nanostructures of Amphiphilic Block Copolymers I. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/12_2010_104.

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Morishima, Yotaro. "Amphiphilic Polyelectrolytes: Characterization of Associative Properties and Self-Assembled Nanostructures in Water." In ACS Symposium Series. American Chemical Society, 2006. http://dx.doi.org/10.1021/bk-2006-0937.ch002.

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Morishima, Y., M. Seki, S. Nomura, and M. Kamachi. "Amphiphilic Polyelectrolytes and Their Coulombic Complexes with Surfactants as Novel Photochemical Systems." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1994-0548.ch018.

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Ignatov, Sergei Georgievich, S. Yu Filippovich, and Ivan Alekseevich Dyatlov. "Specific Immobilization of Rotaviruses for Atomic Force Microscopy Using Langmuir Antibody Films Based on Amphiphilic Polyelectrolytes." In Macro, Micro, and Nano-Biosensors. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-55490-3_7.

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Hashidzume, Akihito, Tetsuya Noda, and Yotaro Morishima. "Stimuli-Responsive Associative Behavior of Polyelectrolyte-Bound Nonionic Surfactant Moieties in Aqueous Media." In Stimuli-Responsive Water Soluble and Amphiphilic Polymers. American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2001-0780.ch002.

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Procházka, Karel, Zuzana Limpouchová, Filip Uhlík, et al. "Fluorescence Spectroscopy as a Tool for Investigating the Self-Organized Polyelectrolyte Systems." In Self Organized Nanostructures of Amphiphilic Block Copolymers I. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/12_2010_56.

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Malinova, V., H. Menzel, and C. Wandrey. "Interactions of highly charged polyelectrolytes with monolayers of oppositely charged amphiphiles." In Mesophases, Polymers, and Particles. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b100296.

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"Complexation Between Amphiphilic Polyelectrolytes and Proteins: From Necklaces to Gels." In Physical Chemistry of Polyelectrolytes. CRC Press, 2001. http://dx.doi.org/10.1201/9781482270686-21.

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Conference papers on the topic "Amphiphilic polyelectrolytes"

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Alnaizy, R., M. Sayem Mozumder, and B. F. Abu-Sharkh. "Amphiphilic Polyelectrolytes as Primary Flocculants/Coagulants in Water Treatment: Dynamic Light Scattering Study." In World Water and Environmental Resources Congress 2004. American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40737(2004)337.

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Baccile, Niki, Alexandre Poirier, and Chloe Seyrig. "Biosurfactants and biopolymers: Between interactions, orthogonality and mutual responsivity." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/taly8346.

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Polymer-surfactant systems have many applications in everyday life, but their petrochemical origin is not only controversial but soon submitted to regulatory restrictions. In a more environmentally friendly approach, but also to forecast regulations in both EU and USA, biopolymer-biosurfactant systems are an interesting alternative. There exists a large family of both biobased surfactants and polymers, which possess a huge potential, however currently limited, because both the solution behaviour of the former and their interactions are not established, yet. [1] This presentation shows the firs
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