Academic literature on the topic 'Polyvinyl sulfide (PVS) materials'

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Journal articles on the topic "Polyvinyl sulfide (PVS) materials"

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Kostic, R., M. Romcevic, D. Markovic, J. Kuljanin, and M. I. Comor. "Far-infrared spectroscopy of a nanocomposite of polyvinyl alcohol and lead sulfide nanoparticles." Science of Sintering 38, no. 2 (2006): 191–95. http://dx.doi.org/10.2298/sos0602191k.

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A nanocomposite consisting of lead sulfide (PbS) nanoparticles (NPs) with average diameter of 26 ?, according to absorption threshold shift, and polyvinyl alcohol (PVA) was characterized using far-infrared absorption spectroscopy. The experimental results are consistent with theoretical calculations that include proper mechanical boundary conditions at the nanocrystal-host interface.
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Kuljanin, J., M. I. Čomor, V. Djoković, and J. M. Nedeljković. "Synthesis and characterization of nanocomposite of polyvinyl alcohol and lead sulfide nanoparticles." Materials Chemistry and Physics 95, no. 1 (2006): 67–71. http://dx.doi.org/10.1016/j.matchemphys.2005.05.050.

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Abdel-Galil, A., M. R. Balboul та H. E. Ali. "Synthesis and Characterization of γ-Irradiated Cadmium Sulfide/Polyvinyl Alcohol Nanocomposites Films". Journal of Electronic Materials 49, № 3 (2020): 2222–32. http://dx.doi.org/10.1007/s11664-019-07926-9.

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Rayevska, Oleksandra E., Galyna Ya Grodzyuk, Oleksandr L. Stroyuk, Stepan Ya Kuchmiy, and Victor F. Plyusnin. "Size Control of Cadmium Sulfide Nanoparticles in Polyvinyl Alcohol and Gelatin by Polyethyleneimine Addition." MRS Proceedings 1534 (2013): A139—A144. http://dx.doi.org/10.1557/opl.2013.311.

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Zhang, Chun‐Xia, Hong‐Wei Li, and Yuqing Wu. "Polyvinyl Alcohol–Supported AuAgNCs‐CDs Film as a Selective Sensor for Gas Hydrogen Sulfide Detection in Air." Macromolecular Rapid Communications 41, no. 24 (2020): 2000120. http://dx.doi.org/10.1002/marc.202000120.

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Chekanova, V. V., Yu S. Pakhomova, A. M. Kompaniets, V. A. Kireev, and Hvozdiuk Ya. V. "Physicochemical Properties of Solutions of Polyvinyl Alcohol (PVA) of Different Molecular Weights." Ukraïnsʹkij žurnal medicini, bìologìï ta sportu 6, no. 2 (2021): 242–48. http://dx.doi.org/10.26693/jmbs06.02.242.

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The physicochemical properties (surface tension, dynamic viscosity, crystallization and melting temperatures) of polyvinyl alcohol solutions of molecular weight 9, 31 and 72 kDa have been studied. The surface tension and the critical concentration of micelle formation were determined by the method of stalogometry, and the dynamic viscosity was determined using an Oswald viscometer. The crystallization and melting temperatures were determined in a cooled modified chamber of the UOP-6 software freezer at a rate of 2°C/min. Cryomicroscopic studies were carried out on a polarizing microscope "MIN-
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Carvalhal, Cintia Iara Oda, José Antônio Nunes de Mello, Lourenço Correr Sobrinho, Américo Bertolazzo Correr, and Mário Alexandre Coelho Sinhoreti. "Dimensional Change of Elastomeric Materials after Immersion in Disinfectant Solutions for Different Times." Journal of Contemporary Dental Practice 12, no. 4 (2011): 252–58. http://dx.doi.org/10.5005/jp-journals-10024-1043.

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ABSTRACT Aim The aim of this study was to evaluate the influence of immersion period in two disinfectant solutions on dimensional change of four elastomeric impression materials. Materials and methods Four representative materials of each class of elastomers: Xantopren (polydimethylsiloxane—PDS), Express (polyvinyl siloxane—PVS); Permlastic (polysulfide— PS) and Soft Impregum (polyether—EP) were mixed according to manufacturers’ instructions and then inserted into a metal matrix prepared according to the specification of ISO 4823. The molds were removed from the matrix after 7 minutes and imme
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Soliman, Mai, Alhanoof Aldegheishem, Norah Alsubaie, Razan Alshamrani, and Elzahraa Eldwakhly. "Dimensional Accuracy of Working Dies Fabricated by Different Impression Materials and Techniques: 3D Digital Assessment." Journal of Biomaterials and Tissue Engineering 11, no. 1 (2021): 106–11. http://dx.doi.org/10.1166/jbt.2021.2552.

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Accuracy of dental impression plays a significant role in the success of definitive restorations. This study aimed to compare the dimensional accuracy of working dies fabricated using two different impression materials and techniques. Forty working dies fabricated from 40 impressions of preprepared mandibular first molar tooth replica stabilized in a jaw model to receive full coverage crown. Two different Polyvinyl siloxane (PVS) impression materials were used; Aquasil and Virtual. Two different impression techniques were used with each type of impression material; One-step and two-step. The w
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Costa, Camilla, Matteo Cornacchia, Marcello Pagliero, Bruno Fabiano, Marco Vocciante, and Andrea Pietro Reverberi. "Hydrogen Sulfide Adsorption by Iron Oxides and Their Polymer Composites: A Case-Study Application to Biogas Purification." Materials 13, no. 21 (2020): 4725. http://dx.doi.org/10.3390/ma13214725.

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An experimental study of hydrogen sulfide adsorption on a fixed bed for biogas purification is proposed. The adsorbent investigated was powdered hematite, synthesized by a wet-chemical precipitation method and further activated with copper (II) oxide, used both as produced and after pelletization with polyvinyl alcohol as a binder. The pelletization procedure aims at optimizing the mechanical properties of the pellet without reducing the specific surface area. The active substrate has been characterized in its chemical composition and physical properties by X-ray Diffraction (XRD), Field Emiss
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Studenikina, L. N., S. Y. Domareva, Y. E. Golenskikh, and A. V. Matveeva. "Features of high-filled composites based on various brands of polyvinyl alcohol." Proceedings of the Voronezh State University of Engineering Technologies 83, no. 1 (2021): 316–22. http://dx.doi.org/10.20914/2310-1202-2021-1-316-322.

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Composites based on polyvinyl alcohol (PVA) and polysaccharides (PS) have significant potential for use as compostable packaging materials, as well as in various fields of crop production. PVS are produced by the industry of various brands that differ in molecular weight (MM) and the residual content of vinyl acetate (BA) groups, and as a result - the degree of hydrolysis. Depending on the brand of PVA and the nature of the filler, such properties of composites based on them as water resistance, strength, degree of bioconversion, etc.will differ significantly. The purpose of the work: a compre
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Dissertations / Theses on the topic "Polyvinyl sulfide (PVS) materials"

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Pötzsch, Robert, Brian C. Stahl, Hartmut Komber, Craig J. Hawker, and Brigitte I. Voit. "High refractive index polyvinylsulfide materials prepared by selective radical mono-addition thiol–yne chemistry." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36422.

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We report on a new framework for preparing high-refractive index polymeric materials which combines the selective thiol radical mono-addition to phenyl-acetylene derivatives with hyperbranched architectures. Using this strategy we have synthesized a series of linear and hyperbranched polyvinyl sulfide (PVS) materials, employing different dithiol (A₂ and A'₂) and di- and trialkyne (B and B₃) monomers. The process requires only a simple radical initiator, such as AIBN, in lieu of expensive or toxic catalysts and this chemistry produces polymers in high yield (up to 96%) and high molecular weight
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