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Gotowe bibliografie tematyczne / POLYMER OXIDE

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Gotowa bibliografia na temat „POLYMER OXIDE”

Autor: Grafiati

Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "POLYMER OXIDE"

1

Kausar, Ayesha. "Conjugated Polymer/Graphene Oxide Nanocomposites—State-of-the-Art". Journal of Composites Science 5, nr 11 (5.11.2021): 292. http://dx.doi.org/10.3390/jcs5110292.

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Graphene oxide is an imperative modified form of graphene. Similar to graphene, graphene oxide has gained vast interest for the myriad of industrial applications. Conjugated polymers or conducting polymers are well known organic materials having conducting backbone. These polymers have semiconducting nature due to π-conjugation along the main chain. Doping and modification have been used to enhance the electrical conductivity of the conjugated polymers. The nanocomposites of the conjugated polymers have been reported with the nanocarbon nanofillers including graphene oxide. This review essentially presents the structure, properties, and advancements in the field of conducting polymer/graphene oxide nanocomposites. The facile synthesis, processability, and physical properties of the polymer/graphene oxide nanocomposites have been discussed. The conjugated polymer/graphene oxide nanocomposites have essential significance for the supercapacitors, solar cells, and anti-corrosion materials. Nevertheless, the further advanced properties and technical applications of the conjugated polymer/graphene oxide nanocomposites need to be explored to overcome the challenges related to the high performance.

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Tran, Vinh Van, Truong Thi Vu Nu, Hong-Ryun Jung i Mincheol Chang. "Advanced Photocatalysts Based on Conducting Polymer/Metal Oxide Composites for Environmental Applications". Polymers 13, nr 18 (8.09.2021): 3031. http://dx.doi.org/10.3390/polym13183031.

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Photocatalysts provide a sustainable method of treating organic pollutants in wastewater and converting greenhouse gases. Many studies have been published on this topic in recent years, which signifies the great interest and attention that this topic inspires in the community, as well as in scientists. Composite photocatalysts based on conducting polymers and metal oxides have emerged as novel and promising photoactive materials. It has been demonstrated that conducting polymers can substantially improve the photocatalytic efficiency of metal oxides owing to their superior photocatalytic activities, high conductivities, and unique electrochemical and optical properties. Consequently, conducting polymer/metal oxide composites exhibit a high photoresponse and possess a higher surface area allowing for visible light absorption, low recombination of charge carriers, and high photocatalytic performance. Herein, we provide an overview of recent advances in the development of conducting polymer/metal oxide composite photocatalysts for organic pollutant degradation and CO2 conversion through photocatalytic processes.

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Tanaka, Takeshi, Osamu Terakado i Masahiro Hirasawa. "Thermochemical Approach for Screening of Alternative Metal Oxides as a Flame Retardant of Modacrylic Fiber". High Temperature Materials and Processes 36, nr 3 (1.03.2017): 233–42. http://dx.doi.org/10.1515/htmp-2015-0140.

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AbstractIn the view of the exploring novel flame retardants for polymers, modacrylic fibers, which consist of acrylonitrile and vinylidene dichloride, containing metal oxide have been investigated by thermogravimetric–mass spectrometry (TG-MS) analysis. It was found that, among the examined oxides, germanium and antimony oxides formed the corresponding volatile chlorides through the reactions of oxides with hydrogen chloride formed during thermal decomposition of the polymer. The results have been discussed in the framework of thermochemistry. Based on the equilibrium calculation of the polymer–oxide mixture, the predominance diagrams of the M-O-Cl systems (M = Sb and Ge) show that the chlorides are the most stable phases at 573 K, at which temperature the major decomposition of the polymer starts. These results suggest that GeO2 would be a possible candidate of a flame retardant for chlorinated polymers. However, combustion experiments revealed an insufficient performance of the oxide. The inductively coupled plasma with atomic emission spectroscopy (ICP-AES) analysis showed the reactivity of GeO2 for HCl was inferior to that of Sb2O3, and X-ray fluorescence spectrometer (XRF) analysis of the solid thermal decomposition products showed that the evaporation of germanium was less intense than that of the conventional antimony system. This result is presumably due to the smaller rate of the chlorination of GeO2 than that of Sb2O3.

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Chrissopoulou, Kiriaki, Krystalenia Androulaki, Massimiliano Labardi i Spiros H. Anastasiadis. "Static and Dynamic Behavior of Polymer/Graphite Oxide Nanocomposites before and after Thermal Reduction". Polymers 13, nr 7 (25.03.2021): 1008. http://dx.doi.org/10.3390/polym13071008.

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Nanocomposites of hyperbranched polymers with graphitic materials are investigated with respect to their structure and thermal properties as well as the dynamics of the polymer probing the effect of the different intercalated or exfoliated structure. Three generations of hyperbranched polyester polyols are mixed with graphite oxide (GO) and the favorable interactions between the polymers and the solid surfaces lead to intercalated structure. The thermal transitions of the confined chains are suppressed, whereas their dynamics show similarities and differences with the dynamics of the neat polymers. The three relaxation processes observed for the neat polymers are observed in the nanohybrids as well, but with different temperature dependencies. Thermal reduction of the graphite oxide in the presence of the polymer to produce reduced graphite oxide (rGO) reveals an increase in the reduction temperature, which is accompanied by decreased thermal stability of the polymer. The de-oxygenation of the graphite oxide leads to the destruction of the intercalated structure and to the dispersion of the rGO layers within the polymeric matrix because of the modification of the interactions between the polymer chains and the surfaces. A significant increase in the conductivity of the resulting nanocomposites, in comparison to both the polymers and the intercalated nanohybrids, indicates the formation of a percolated rGO network.

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Ahadzade, Sh M., I. A. Vakulenko i Kh Asgarov. "Factors Influence on Electrophysical Parameters of the Composite Varistors". Science and Transport Progress, nr 1(101) (14.03.2023): 29–36. http://dx.doi.org/10.15802/stp2023/283013.

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Purpose. Evaluation influence structural state polymer phase on the response voltage and coefficient nonlinearity of a multilayer varistor based on zinc oxide. Methodology. Zinc oxide consisted of 97% zinc oxide and 3% total oxides of Bi2O3, Co3O4, MnO2, B2O3, SbO3, ZrO2, Al2O3. At a temperature of 1573°K, the synthesis of semiconductor ceramics based on Zinc oxide was carried out. For composite of thermoplastic polymers and Zinc oxide, non-polar and polar polymers, high pressure polyethylene and polyvinylidene fluoride were used. The composites were obtained by hot pressing at the melting temperature of the polymer phase and a pressure of 15 MPa. After that, using silver paste, measuring electrodes 10 mm in diameter were applied to the surface of the synthesized samples, and then current–voltage characteristics were measured. Modification of composites under action of gas-discharge plasma was carried out in a special cell that creates a dielectric-gas-composite system. The structure of the composites was studied by X-ray diffraction analysis and IR spectroscopy. Findings. The obtained experimental results show that the size of the particles of the inorganic phase significantly affects the current-voltage characteristics of the composite varistor: at a given thickness of the composite varistor, the operation voltage decreases markedly, and the nonlinearity coefficient increases. Numerous experimental results obtained by us show that the impact of electric discharge plasma on the polymer Zinc oxide-composite leads to a significant change in the permittivity and the concentration of local levels at the interface of the composite. The results research showed that effect electrical plasma on the opening voltage depends on the polarity of polymer matrices. Moreover, plasma processing itself significantly changes the structure of the polymer phase at composite. Originality. The magnitude of the potential barrier at phase boundary is mainly determined by the volume fraction and size of the main structural element of ZnO ceramics. Changing the structural state of the polymer matrix allows the adjust response voltage and coefficient nonlinearity of volt-ampere characteristic of the multilayer varistor. Practical value. The discovered development of electron-ion processes at polymer phase of the varistor indicates the need to take into account change in its service characteristics from the duration and intensity of use. The result obtained has a certain practical significance, since it indicates not only the reason for the change in properties, but also the need to develop measures to increase the service life of the varistor.

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6

Barick, Barun K., Neta Shomrat, Uri Green, Zohar Katzman i Tamar Segal-Peretz. "Fabrication of Nanoscale Oxide Textured Surfaces on Polymers". Polymers 13, nr 13 (3.07.2021): 2209. http://dx.doi.org/10.3390/polym13132209.

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Nanoscale textured surfaces play an important role in creating antibacterial surfaces, broadband anti-reflective properties, and super-hydrophobicity in many technological systems. Creating nanoscale oxide textures on polymer substrates for applications such as ophthalmic lenses and flexible electronics imposes additional challenges over conventional nanofabrication processes since polymer substrates are typically temperature-sensitive and chemically reactive. In this study, we investigated and developed nanofabrication methodologies to create highly ordered oxide nanostructures on top of polymer substrates without any lithography process. We developed suitable block copolymer self-assembly, sequential infiltration synthesis (SIS), and reactive ion etching (RIE) for processes on polymer substrates. Importantly, to prevent damage to the temperature-sensitive polymer and polymer/oxide interface, we developed the process to be entirely performed at low temperatures, that is, below 80 °C, using a combination of UV crosslinking, solvent annealing, and modified SIS and RIE processes. In addition, we developed a substrate passivation process to overcome reactivity between the polymer substrate and the SIS precursors as well as a high precision RIE process to enable deep etching into the thermally insulated substrate. These methodologies widen the possibilities of nanofabrication on polymers.

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El-Said, Waleed A., Muhammad Abdelshakour, Jin-Ha Choi i Jeong-Woo Choi. "Application of Conducting Polymer Nanostructures to Electrochemical Biosensors". Molecules 25, nr 2 (12.01.2020): 307. http://dx.doi.org/10.3390/molecules25020307.

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Over the past few decades, nanostructured conducting polymers have received great attention in several application fields, including biosensors, microelectronics, polymer batteries, actuators, energy conversion, and biological applications due to their excellent conductivity, stability, and ease of preparation. In the bioengineering application field, the conducting polymers were reported as excellent matrixes for the functionalization of various biological molecules and thus enhanced their performances as biosensors. In addition, combinations of metals or metal oxides nanostructures with conducting polymers result in enhancing the stability and sensitivity as the biosensing platform. Therefore, several methods have been reported for developing homogeneous metal/metal oxide nanostructures thin layer on the conducting polymer surfaces. This review will introduce the fabrications of different conducting polymers nanostructures and their composites with different shapes. We will exhibit the different techniques that can be used to develop conducting polymers nanostructures and to investigate their chemical, physical and topographical effects. Among the various biosensors, we will focus on conducting polymer-integrated electrochemical biosensors for monitoring important biological targets such as DNA, proteins, peptides, and other biological biomarkers, in addition to their applications as cell-based chips. Furthermore, the fabrication and applications of the molecularly imprinted polymer-based biosensors will be addressed in this review.

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Kashytskyi, V. P., O. L. Sadova, M. D. Melnychuk, G. I. Golodyuk i O. B. Klymovets. "Structuring of Modified Epoxy Composite Materials by Infrared Spectroscopy". Journal of Engineering Sciences 10, nr 1 (2023): C9—C16. http://dx.doi.org/10.21272/jes.2023.10(1).c2.

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A comparative evaluation of the structuring processes of the epoxy polymer system with epoxy polymers modified with polyvinyl chloride solution and epoxy composites filled with finely dispersed titanium oxide powder was carried out. Analysis of the infrared (IR) absorption spectra of the studied epoxy polymer and epoxy composite materials showed the presence of deformation and valence vibrations of certain groups of atoms. The oscillations of groups of atoms with double bonds and regions of existence of triple bonds were also revealed. In the region of high frequencies, absorption bands correspond to valence vibrations of groups containing a hydrogen atom. The presence of triple bonds in the epoxy polymer system was determined, indicating unreacted functional groups. This fact corresponds to the low content of the gel fraction of unmodified epoxy polymers after heat treatment and indicates the formation of a system with insufficient chemical bonds. The absorption bands of the epoxy composite material filled with titanium oxide powder are characterized by a lower optical density and a larger peak area compared to the bands of the unmodified epoxy polymer, which indicates the formation of a higher number of crosslinking nodes of the epoxy composite material. The introduction of polyvinyl chloride into the composition of the epoxy polymer system increases the degree of structuring of epoxy polymers. However, a smaller number of formed chemical bonds of the modified epoxy polymer was recorded compared to epoxy composites containing titanium oxide particles. The highest degree of structuring is provided in polyvinyl chloride-modified epoxy composites containing titanium oxide powder due to intensive structuring and formation of double and triple bonds.

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Florjanczyk, Zbigniew, Ewa Zygadlo-Monikowska, Justyna Ostrowska i Anita Frydrych. "Solid polymer electrolytes based on ethylene oxide polymers". Polimery 59, nr 01 (styczeń 2014): 80–87. http://dx.doi.org/10.14314/polimery.2014.080.

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Yu, Mei Hui, Hui Min Meng i Ying Xue. "Nano-Mesh Structured Mn-Based Oxide/Conducting Polymer Composite Electrode for Supercapacitor". Materials Science Forum 859 (maj 2016): 104–8. http://dx.doi.org/10.4028/www.scientific.net/msf.859.104.

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In this work, modified nano-mesh structured Mn-based oxide electrode material and the supercapacitors are researched. Three types of conducting polymers, i.e. polyaniline (PANI), polypyrrole (PPy) and polythiophene (PTs) are considered to modify Mn-based oxide electrodes. The results of field emission scanning electron microscope show that conducting polymer film can form porous structure on Mn-based oxide electrode, this special structure is beneficial to the improvement of specific surface area, so that the specific capacitance can be increased. The specific capacitance of the supercapacitors assembled by Mn-based oxide/conducting polymer composite electrodes are tested, resulting that the maximum initial specific capacitance is 843 F g-1, cycle life is 105 times. Compared to supercapacitors assembled by general Mn-based oxide electrodes, this Mn-based oxide/conducting polymer material electrode can improve the specific capacitance up to 1.4~1.9 times, and the conductivity and cycle stability can be increased at the same time.

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Rozprawy doktorskie na temat "POLYMER OXIDE"

1

Wang, Yi. "The Synthesis and Characterization of Amphiphilic Poly(Ethylene Oxide)-Block-Poly(Octadecyl Acrylate) Block Copolymers". University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1399491109.

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Wang, Shiping. "THICKNESS AND CRYSTALLINITY DEPENDENT SWELLING OF POLY (ETHYLENE OXIDE) /POLY (METHYL METHACRYLATE) BLEND FILMS". University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1556831245474707.

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Ammar, Ali M. "REDUCTION OF GRAPHENE OXIDE USING MICROWAVE AND ITS EFFECT ON POLYMER NANOCOMPOSITES PROPERTIES". University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1533123263694685.

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Raja, Munira. "Metal-oxide-conjugated polymer interface properties for applications in polymer electronics". Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406832.

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Bhide, Mahesh. "Nitric oxide delivery from polymeric wound dressings". Akron, OH : University of Akron, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1144940498.

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Thesis (Ph. D.)--University of Akron, Dept. of Chemistry, 2006.
"May, 2006." Title from electronic dissertation title page (viewed 10/11/2006). Advisor, Daniel J. Smith; Committee members, Michael J. Taschner, Wiley J. Youngs, Kim C. Calvo, Darrell H. Reneker; Department Chair, Michael J. Taschner; Dean of the College, Ronald F. Levant; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.

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Cheng, Yen Theng. "Functional Polymer Templates for Metal Oxide Nanostructures". Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29660.

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Functional nanostructured metal oxides have attracted tremendous attention in the last several decades owing to their superior semiconducting, catalytic, and electronic properties over their bulk counterparts. While bulk metal oxide materials are typically robust, nanostructured metal oxides have been proven to show enhanced performances due to higher surface-to-volume ratios and shorter ion or electron diffusion paths. The soft templating approaches in combination with controlled polymer syntheses are particularly intriguing as they allow new opportunities to tailor the morphology and composition of the metal oxide nanostructures. The present Thesis aimed to investigate the synthesis of functional polymeric templates using reversible deactivation radical polymerisations that enable facile electrostatic complexation between the polymer templates and the inorganic precursors to nanostructure metal oxides with well-defined morphologies. In the first research chapter, we demonstrated polymerisation-induced self-aseembly as a scalable and modular synthesis approach to yield mesoporous carbon-coated anatase TiO2 in worm-like and vesicular morphologies. We also showed that the worm-like and vesicular carbon-coated TiO2 are viable as anode materials for lithium-ion batteries. In the second research chapter, we utilised cellulose nanocrystal polymer bottlebrushes to construct mesoporous carbon-coated anatase TiO2 nanorods and studied their electrochemical performance as anode materials for lithium-ion batteries. In the last research chapter, we extended the templating approach from the second research chapter to form niobium-based oxides (Nb2O5 polymorphs and titanium niobium oxides).

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7

Celik, Guler (bayrakli). "Microwave-assisted Simultaneous Novel Synthesis Of Poly(dibromophenylene Oxide)s, Poly(diiodophenylene Oxide)s (p), Conducting(cp) And/or Crosslinked (clp) And/or Radical Ion Polymers (rip)". Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608296/index.pdf.

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Microwave-assisted novel synthesis of poly(dibromophenylene oxide) or poly(diiodophenylene oxide) (P), conducting polymer (CP) and/or crosslinked polymer (CLP) and/or radical ion polymer (RIP) were achieved simultaneously from lithium, sodium or potassium 2,4,6-bromophenolate or sodium 2,4,6-iodophenolate in a very short time interval. Polymerizations were carried out by constant microwave energy with different time intervals varying from 1 to 20 min
or at constant time intervals with variation of microwave energy from 70 to 900 watt
or varying the water content from 0.5 to 5 ml at constant time intervals and microwave energy. Poly(dihalophenylene oxide) and radical ion polymers were characterized by FTIR (Fourier Transform Infrared), 1H-NMR (Proton Nuclear Magnetic Resonance), 13C-NMR (Carbon-13 Nuclear Magnetic Resonance), TGA/ FTIR (Thermal Gravimetric Analysis / Fourier Transform Infrared), DSC (Differential Scanning Calorimeter), SEM (Scanning Electron Microscope), ESR (Electron Spin Resonance), GPC (Gel Permeation Chromatography), UV-Vis (UV-Visible Spectroscopy), Light Scattering and Elemental Analysis. Conducting and crosslinked polymers were characterized by FTIR, TGA/ FTIR, DSC, SEM, ESR, XRD (Powder Diffraction X-Ray) and Elemental Analysis. The effects of heating time, microwave energy and water content on the percent conversion and the polymer synthesis were also investigated.

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Couture, Lorraine. "Adsorption of polyethylene oxide on latex particles". Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59265.

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Layer thickness measurements are used to investigate polymer adsorption and possible conformations of adsorbed polymer.
In a first step, photon correlation spectroscopy (PCS) is used to monitor the layer thickness at different ratios of polyethylene oxide (PEO) per polystyrene (PS) latex spheres. Comparison of the polymer concentration at which the equilibrium layer thickness was attained with the concentration where the adsorption isotherm reached its plateau leads to a proposed three step adsorption process. Kinetic studies of the layer thickness build-up also support this mechanism. Polymer polydispersity and the effect of anchored end groups on layer thickness are found to be in agreement with theoretical predictions.
In a second step, a rheological investigation of PEO coated polystyrene-butadiene (PSB) latex spheres was performed. The influence of coating on the second virial coefficient was determined. Comparison of the layer thickness as measured by viscosity and PCS shows the relative importance of the latex polydispersity for the two methods.

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Rodier, Bradley J. "Modification of Graphene Oxide for Tailored Functionality". Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1515509392532651.

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Li, Wei. "Composite polymer/graphite/oxide electrode systems for supercapacitors". University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439309266.

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Książki na temat "POLYMER OXIDE"

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Center, Langley Research, red. Summary of GPC/DV results for space exposed poly(arylene ether phosphine oxide)s. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1995.

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A, Banks Bruce, Hunt Jason i United States. National Aeronautics and Space Administration., red. Reactively deposited aluminum oxide and fluoropolymer filled aluminum oxide protective coatings for polymers. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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A, Banks Bruce, Hunt Jason i United States. National Aeronautics and Space Administration., red. Reactively deposited aluminum oxide and fluoropolymer filled aluminum oxide protective coatings for polymers. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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Bailey, Frederick E. Alkylene oxides and their polymers. New York: Dekker, 1991.

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T, Yoko, Saka S i United States. National Aeronautics and Space Administration., red. Preparation of oxide glasses from metal alkoxides by sol-gel method. Washington, DC: National Aeronautics and Space Administration, 1988.

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Shilo, A. E. Oksidopolimernye materialy matrichnogo tipa. Kiev: Nauk. dumka, 1989.

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Inc, ebrary. Interaction of polymers with polluted atmosphere nitogen oxides. Shawbury, Shrewsbury, Shropshire, U.K: iSmithers, 2009.

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Mallik, Robert Ronnan. An investigation of polymeric adsorption on aluminium oxide by inelastic electron tunnelling spectroscopy. Leicester: Leicester Polytechnic, 1985.

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Center, Lewis Research, red. Effects of surface area, polymer char, oxidation, and NiO additive on nitridation kinetics of silicon powder compacts. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1998.

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Tailoring the (bio)activity of polymeric and metal oxide nano- and microparticles in biotic and abiotic environments. [New York, N.Y.?]: [publisher not identified], 2012.

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Części książek na temat "POLYMER OXIDE"

1

Wohlfarth, Ch. "Partial specific volume of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide]". W Polymer Solutions, 464. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_242.

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Wohlfarth, Ch. "Second virial coefficient of poly(butylene oxide-b-ethylene oxide-b-butylene oxide)". W Polymer Solutions, 687–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_417.

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Wohlfarth, Ch. "Second virial coefficient of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide)". W Polymer Solutions, 847. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_524.

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Wohlfarth, Ch. "Second virial coefficient of poly(propylene oxide-b-ethylene oxide-b-propylene oxide)". W Polymer Solutions, 1096. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_670.

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Wohlfarth, Ch. "pVT data of poly(propylene oxide-b-ethylene oxide-b-propylene oxide) in water". W Polymer Solutions, 290–91. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_131.

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Wohlfarth, Ch. "pVT data of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) in water". W Polymer Solutions, 132. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_90.

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Wohlfarth, Ch. "Enthalpy of dilution of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) in tetrachloromethane". W Polymer Solutions, 1332. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_804.

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Wohlfarth, Ch. "Vapor-liquid equilibrium data of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) in tetrachloromethane". W Polymer Solutions, 1256–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_252.

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Wohlfarth, Ch. "Liquid-liquid equilibrium data of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) in water". W Polymer Solutions, 2711–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_543.

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Wohlfarth, Ch. "Partial specific volume of poly(ethylene oxide-co-propylene oxide)". W Polymer Solutions, 463. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_241.

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Streszczenia konferencji na temat "POLYMER OXIDE"

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Armes, S. P. "Conducting polymer-inorganic oxide colloidal nanoconmposites". W International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835671.

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Trine, Eric Brandon, Gary Arnold Pope, Chris James Britton, Robert Matthew Dean i Jonathan William Driver. "Novel Application of Polyethylene Oxide Polymer for EOR from Oil-Wet Carbonates". W SPE Improved Oil Recovery Conference. SPE, 2022. http://dx.doi.org/10.2118/209446-ms.

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Abstract The objective of this study was to test the performance of high-molecular weight polyethylene oxide (PEO) polymer in a low-permeability, oil-wet carbonate reservoir rock. Conventional HPAM polymers of similar molecular weight did not exhibit acceptable transport in the same rock, so PEO was explored as an alternative polymer. Viscosity, pressure drop across each section of the core, oil recovery, and polymer retention were measured. The PEO polymer showed good transport in the 23 mD reservoir carbonate core and reduced the residual saturation from 0.29 to 0.17. The reduction of residual oil saturation after polymer flooding using PEO was unexpected and potentially significant.

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Azens, Andris, A. Talledo, Anne M. Andersson, Gunnar A. Niklasson, B. A. Stjerna, Claes-Goeran Granqvist i James R. Stevens. "W oxide/polymer laminate/V oxide electrochromic smart windows: recent advances". W Optical Materials Technology for Energy Efficiency and Solar Energy, redaktorzy Anne Hugot-Le Goff, Claes-Goeran Granqvist i Carl M. Lampert. SPIE, 1992. http://dx.doi.org/10.1117/12.130551.

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Jia, Q. X., M. Jain, A. K. Burrell, T. M. McCleskey i Y. Lin. "Polymer-assisted deposition of metal-oxide films". W 2008 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF). IEEE, 2008. http://dx.doi.org/10.1109/isaf.2008.4693854.

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Joshi, Girish M., i Kalim Deshmukh. "Conjugated polymer/graphene oxide nanocomposite as thermistor". W NANOFORUM 2014. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4917658.

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Abyzova, E. G., E. M. Dogadina, E. N. Bolbasov, E. V. Plotnikov, S. I. Tverdokhlebov, R. D. Rodriguez i E. Sheremet. "Biodegradable polymer/graphene oxide сomposite for in vivo use". W 8th International Congress on Energy Fluxes and Radiation Effects. Crossref, 2022. http://dx.doi.org/10.56761/efre2022.n4-p-955301.

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Recently, there has been a growing need for the installation of implants to monitor particular processes, stimulate cell growth or activity, or to replace tissues. The use of remote monitoring using biodegradable materials would facilitate the work of doctors, simplify the lives of patients, and also have a beneficial effect on the environment. Remote monitoring would allow monitoring of the tissues around the implant and the condition of the implant itself. Reduced graphene oxide (rGO) is one of the promising carbon materials due to its distinctive properties: inexpensive, ease of production, and high conductivity. It is proposed to create an electronic component based on laser-reduced graphene oxide and biodegradable polymers for monitoring the state of the implant. The study of the properties of rGO on biodegradable polymers made it possible to select laser reduction modes and select the PLLA polymer for further study. The mechanical stability test suggests the formation of a composite of rGO and polymers. After chemical exposure, a change in conductivity is observed. The samples turned out to be biocompatible, which means they are suitable for subsequent studies. Further the electrical characterization and approaches to create the electronic components have been investigated. This work paves the way for the development of new implantable electronic components for monitoring important parameters of the human body.

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Kiefer, Rudolf, Roshan Khadka, Zane Zondaka, Jadranka Travas-Sejdic i Tarmo Tamm. "Polypyrrole polymerized in polyethylene oxide: linear actuation in organic and aqueous electrolytes". W Electroactive Polymer Actuators and Devices (EAPAD) XX, redaktor Yoseph Bar-Cohen. SPIE, 2018. http://dx.doi.org/10.1117/12.2300145.

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Seil, Justin T., i Thomas J. Webster. "Zinc oxide nanoparticle and polymer antimicrobial biomaterial composites". W 2010 36th Annual Northeast Bioengineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/nebc.2010.5458276.

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Gong, Zhehui, Anuja Shreeram Kulkarni, Jing Yang, Vadanasundari Vedarethinam i Kun Qian. "Polymer-metal Oxide Nanoparticles for Small Metabolite Detection". W 2019 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO). IEEE, 2019. http://dx.doi.org/10.1109/3m-nano46308.2019.8947351.

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Britten, Jerald A., i Ian M. Thomas. "Sol-gel metal oxide and metal oxide/polymer multilayers applied by meniscus coating". W Laser-Induced Damage in Optical Materials: 1993, redaktorzy Harold E. Bennett, Lloyd L. Chase, Arthur H. Guenther, Brian E. Newnam i M. J. Soileau. SPIE, 1994. http://dx.doi.org/10.1117/12.180885.

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Raporty organizacyjne na temat "POLYMER OXIDE"

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Baker, J. N., i W. H. Fletcher. Stationary market applications potential of solid oxide and solid polymer fuel cell systems. Office of Scientific and Technical Information (OSTI), grudzień 1996. http://dx.doi.org/10.2172/460350.

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Shriver, D. F., i M. A. Ratner. Mixed ionic-electronic conduction and percolation in polymer electrolyte metal oxide composites. Final report. Office of Scientific and Technical Information (OSTI), czerwiec 1997. http://dx.doi.org/10.2172/491618.

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Nizameeva, Guliya, Elgina Lebedeva, Radis Gainullin, Irek Nizameev i Oleg Sinyashin. Composite material based on oriented nickel oxide networks in a polymer matrix as an active element of a conductometric greenhouse gas sensor. Peeref, lipiec 2023. http://dx.doi.org/10.54985/peeref.2307p8656485.

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Calhoun, C. L. Jr, L. E. Nulf i A. H. Gorin. Sulfur polymer cement encapsulation of RCRA toxic metals and metal oxides. Office of Scientific and Technical Information (OSTI), czerwiec 1995. http://dx.doi.org/10.2172/161467.

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Jianzhong Lou i Shamsuddin Ilias. Development of Nanofiller-Modulated Polymeric Oxygen Enrichment Membranes for Reduction of Nitrogen Oxides in Coal Combustion. Office of Scientific and Technical Information (OSTI), grudzień 2010. http://dx.doi.org/10.2172/1013342.

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Brossia. L52119 Comparative Consumption Rates of Impressed Current Cathodic Protection Anodes. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), styczeń 2004. http://dx.doi.org/10.55274/r0010953.

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There is a variety of impressed current anode materials available for onshore applications, including High Silicon Cast Iron (HSCI), Mixed Metal Oxides (MMO), graphite, platinum (or platinum coated titanium), and conductive polymers. Many end users simply select the anode material that they have experience with. What is lacking is a clear, direct comparison of relative anode consumption rates conducted under identical conditions. The present study examined the behavior of the various anode types under different current loads and soil conditions in an effort to establish baseline consumption rates under controlled conditions. Variables that were examined included soil resistivity, the presence of coke backfill, current load, and soil type (sand or 50/50 clay/sand mix). The consumption rates of the anodes evaluated decreased in the order of: AnodeFlex, HSCI, Graphite, Pt, and MMO. A survey of field experiences yielded a slightly different order in terms of anode life with Graphite and HSCI lasting the longest. However, given the wide range of anode sizes used in the various field sites, it is difficult to directly link the field results to the consumption rates measured in the laboratory. Soil composition and resistivity were not observed to have a significant influence on anode consumption rates. The presence of coke, however, led to a decrease in consumption for all anodes in some cases by as much as a factor of nearly 70. Utilizing anode cost estimates and neglecting installation costs, the life-cycle material costs for MMO and Pt anodes are much lower than the other anode materials. Furthermore, AnodeFlex was noted to be the highest cost system from a materials perspective. This may be slightly misleading since installation and replacement costs are not factored in. Given that the installation of AnodeFlex is often much easier and less expensive than the other anode types, this may prove to be a viable financial decision when the other factors are considered. �� The primary implications of the present study are: Despite higher material costs, MMO and Pt anodes may offer significant long-term cost savings as compared to other anode types for many applications Use of coke backfill is critical to ensure lower anode consumption rates for AnodeFlex, Graphite, and to a lesser extent HSCI; coke does not appear necessary for MMO or Pt Soil composition (sand vs. clay/sand mix) and resistivity do not appear to significantly influence anode consumption rates, thus consideration of the soil environment (except groundwater chemistry) is not needed in selection of an appropriate anode Because the influence of groundwater chemistry (as part of the soil environment) was not examined, the effects of sulfate, chloride, and pH will need to be evaluated in detail to better aid in anode material selection Field use survey responses showed a wide range in observed anode lifespan, with graphite and HSCI experiencing the longest life and cable anodes the shortest The field survey also revealed that a significant cause of anode failures was connector and cable problems

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Schwartz, Bertha, Vaclav Vetvicka, Ofer Danai i Yitzhak Hadar. Increasing the value of mushrooms as functional foods: induction of alpha and beta glucan content via novel cultivation methods. United States Department of Agriculture, styczeń 2015. http://dx.doi.org/10.32747/2015.7600033.bard.

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During the granting period, we performed the following projects: Firstly, we differentially measured glucan content in several pleurotus mushroom strains. Mushroom polysaccharides are edible polymers that have numerous reported biological functions; the most common effects are attributed to β-glucans. In recent years, it became apparent that the less abundant α-glucans also possess potent effects in various health conditions. In our first study, we explored several Pleurotus species for their total, β and α-glucan content. Pleurotuseryngii was found to have the highest total glucan concentrations and the highest α-glucans proportion. We also found that the stalks (stipe) of the fruit body contained higher glucan content then the caps (pileus). Since mushrooms respond markedly to changes in environmental and growth conditions, we developed cultivation methods aiming to increase the levels of α and β-glucans. Using olive mill solid waste (OMSW) from three-phase olive mills in the cultivation substrate. We were able to enrich the levels mainly of α-glucans. Maximal total glucan concentrations were enhanced up to twice when the growth substrate contained 80% of OMSW compared to no OMSW. Taking together this study demonstrate that Pleurotuseryngii can serve as a potential rich source of glucans for nutritional and medicinal applications and that glucan content in mushroom fruiting bodies can be further enriched by applying OMSW into the cultivation substrate. We then compared the immune-modulating activity of glucans extracted from P. ostreatus and P. eryngii on phagocytosis of peripheral blood neutrophils, and superoxide release from HL-60 cells. The results suggest that the anti-inflammatory properties of these glucans are partially mediated through modulation of neutrophileffector functions (P. eryngiiwas more effective). Additionally, both glucans dose-dependently competed for the anti-Dectin-1 and anti-CR3 antibody binding. We then tested the putative anti-inflammatory effects of the extracted glucans in inflammatory bowel disease (IBD) using the dextran sulfate sodium (DSS)–induced model in mice. The clinical symptoms of IBD were efficiently relieved by the treatment with two different doses of the glucan from both fungi. Glucan fractions, from either P. ostreatus or P. eryngii, markedly prevented TNF-α mediated inflammation in the DSS–induced inflamed intestine. These results suggest that there are variations in glucan preparations from different fungi in their anti-inflammatory ability. In our next study, we tested the effect of glucans on lipopolysaccharide (LPS)-induced production of TNF-α. We demonstrated that glucan extracts are more effective than mill mushroom preparations. Additionally, the effectiveness of stalk-derived glucans were slightly more pronounced than of caps. Cap and stalk glucans from mill or isolated glucan competed dose-dependently with anti-Dectin-and anti-CR-3 antibodies, indicating that they contain β-glucans recognized by these receptors. Using the dextran sulfate sodium (DSS)-inflammatory bowel disease mice model, intestinal inflammatory response to the mill preparations was measured and compared to extracted glucan fractions from caps and stalks. We found that mill and glucan extracts were very effective in downregulatingIFN-γ and MIP-2 levels and that stalk-derived preparations were more effective than from caps. The tested glucans were equally effective in regulating the number of CD14/CD16 monocytes and upregulating the levels of fecal-released IgA to almost normal levels. In conclusion, the most effective glucans in ameliorating some IBD-inflammatory associated symptoms induced by DSS treatment in mice were glucan extracts prepared from the stalk of P. eryngii. These spatial distinctions may be helpful in selecting more effective specific anti-inflammatory mushrooms-derived glucans. We additionally tested the effect of glucans on lipopolysaccharide-induced production of TNF-α, which demonstrated stalk-derived glucans were more effective than of caps-derived glucans. Isolated glucans competed with anti-Dectin-1 and anti-CR3 antibodies, indicating that they contain β-glucans recognized by these receptors. In conclusion, the most effective glucans in ameliorating IBD-associated symptoms induced by DSS treatment in mice were glucan extracts prepared from the stalk of P. eryngii grown at higher concentrations of OMSW. We conclude that these stress-induced growing conditions may be helpful in selecting more effective glucans derived from edible mushrooms. Based on the findings that we could enhance glucan content in Pleurotuseryngii following cultivation of the mushrooms on a substrate containing different concentrations of olive mill solid waste (OMSW) and that these changes are directly related to the content of OMSW in the growing substrate we tested the extracted glucans in several models. Using dextran sulfate sodium (DSS)–inflammatory bowel disease (IBD) mice model, we measured the colonic inflammatory response to the different glucan preparations. We found that the histology damaging score (HDS) resulting from DSS treatment reach a value of 11.8 ± 2.3 were efficiently downregulated by treatment with the fungal extracted glucans, glucans extracted from stalks cultivated at 20% OMSWdownregulated to a HDS value of 6.4 ± 0.5 and at 80% OMSW showed the strongest effects (5.5 ± 0.6). Similar downregulatory effects were obtained for expression of various intestinal cytokines. All tested glucans were equally effective in regulating the number of CD14/CD16 monocytes from 18.2 ± 2.7 % for DSS to 6.4 ± 2.0 for DSS +glucans extracted from stalks cultivated at 50% OMSW. We finally tested glucans extracted from Pleurotuseryngii grown on a substrate containing increasing concentrations of olive mill solid waste (OMSW) contain greater glucan concentrations as a function of OMSW content. Treatment of rat Intestinal epithelial cells (IEC-6) transiently transfected with Nf-κB fused to luciferase demonstrated that glucans extracted from P. eryngii stalks grown on 80% OMSWdownregulatedTNF-α activation. Glucans from mushrooms grown on 80% OMSW exerted the most significant reducing activity of nitric oxide production in lipopolysaccharide (LPS) treated J774A.1 murine macrophages. The isolated glucans were tested in vivo using the Dextran Sodium Sulfate (DSS) induced colitis in C57Bl/6 mice and found to reduce the histology damaging score resulting from DSS treatment. Expression of various intestinal cytokines were efficiently downregulated by treatment with the fungal extracted glucans. We conclude that the stress-induced growing conditions exerted by OMSW induces production of more effective anti-inflammatory glucans in P. eryngii stalks.

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