Bibliografias temáticas / Polymers

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Literatura científica selecionada sobre o tema "Polymers"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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Artigos de revistas sobre o assunto "Polymers"

Chen, Guang, Lei Tao, and Ying Li. "Predicting Polymers’ Glass Transition Temperature by a Chemical Language Processing Model." Polymers 13, no. 11 (2021): 1898. http://dx.doi.org/10.3390/polym13111898.

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We propose a chemical language processing model to predict polymers’ glass transition temperature (Tg) through a polymer language (SMILES, Simplified Molecular Input Line Entry System) embedding and recurrent neural network. This model only receives the SMILES strings of a polymer’s repeat units as inputs and considers the SMILES strings as sequential data at the character level. Using this method, there is no need to calculate any additional molecular descriptors or fingerprints of polymers, and thereby, being very computationally efficient. More importantly, it avoids the difficulties to gen

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Chen, Jian Fang, and Ai Hua Ling. "Design and Synthesis of a Miktoarm Star PMMAZO-(PCL)₂ Copolymer." Advanced Materials Research 332-334 (September 2011): 2089–92. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.2089.

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A series of novel miktoarm star polymers were synthesized by combination of at-om transfer radical polymerization(ATRP), chemical modification and ring-opening polymeri-zation(ROP). These miktoarm star polymers carring one poly[6-(4-methoxy-4’-oxy-azobenzene) hexylmethacrylate] azobenzene (PMMAZO) side-chain liquid crystalline(LC) arm and two polycaprolactone(PCL) arms. These precursors and miktoarm star polymers were characterized by proton nuclear resonance (1H-NMR), and gel permeation chramatograph(GPC). The information of PMMAZO(OH)2 and PMMAZO-(PCL)2 miktoarm star polymer confirmed the ex

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Ansari, Aysha Praveen, Anamika Saini, Ila Joshi, et al. "Conducting Polymers: Types and Applications." International Journal of All Research Education and Scientific Methods 13, no. 01 (2025): 01–19. https://doi.org/10.56025/ijaresm.2024.121224005.

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Conducting Polymers (CPs) represent a unique class of materials that combine the electrical conductivity of metals with the mechanical properties and processability of conventional polymers. This paper provides a comprehensive review of the various types of conducting polymers, including Polyaniline (PANI), Polypyrrole (PPy), Polythiophene (PT), and their derivatives. The synthesis techniques of these polymers, such as Chemical, Electrochemical, and Template-Based Methods, are discussed, highlighting their impact on the polymer's structure, conductivity, and functional properties. Each polymer

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Brostow, Witold, Hanna Fałtynowicz, Osman Gencel, Andrei Grigoriev, Haley E. Hagg Lobland, and Danny Zhang. "Mechanical and Tribological Properties of Polymers and Polymer-Based Composites." Chemistry & Chemical Technology 14, no. 4 (2020): 514–20. http://dx.doi.org/10.23939/chcht14.04.514.

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A definition of rigidity of polymers and polymer-based composites (PBCs) by an equation is formulated. We also discuss tribological properties of polymers and PBCs including frictions (static, sliding and rolling) and wear. We discuss connections between viscoelastic recovery in scratch resistance testing with brittleness B, as well as Charpy and Izod impact strengths relations with B. Flexibility Y is related to a dynamic friction. A thermophysical property, namely linear thermal expansivity, is also related to the brittleness B. A discussion of equipment needed to measure a variety of proper

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Shahzadi, Maria, Taimoor Hassan, and Sana Saeed. "Application of Natural Polymers in Wound Dressings." Pakistan Journal of Medical and Health Sciences 16, no. 10 (2022): 1–2. http://dx.doi.org/10.53350/pjmhs2216101.

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Natural polymers because of their biodegradability, biocompatibility and closeness to the extracellular matrix are frequently used in regenerative medicine for burns and wound dressing. By triggering and stimulating the wound healing process, natural polymers aid in the restoration of damaged tissues and, as a result, skin regeneration1. Natural polymers have proven to be effective in a variety of biomedical applications, such as controlled administration of drugs, gene delivery, and regenerative medicine, among others.Plants, animals, and microbial are the major sources responsible for produc

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Martens, C. M., R. Tuinier, and M. Vis. "Depletion interaction mediated by semiflexible polymers." Journal of Chemical Physics 157, no. 15 (2022): 154102. http://dx.doi.org/10.1063/5.0112015.

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We present a simple mean-field theory to describe the polymer-mediated depletion attraction between colloidal particles that accounts for the polymer’s chain stiffness. We find that for fixed polymer radius of gyration and volume fraction, the strength of this attraction increases with increasing chain stiffness in both dilute and semidilute concentration regimes. In contrast, the range of attraction monotonically decreases with chain stiffness in the dilute regime, while it attains a maximum in the semidilute regime. The obtained analytical expressions for the depletion interaction were compa

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Caldona, Eugene B., Ernesto I. Borrego, Ketki E. Shelar, Karl M. Mukeba, and Dennis W. Smith. "Ring-Forming Polymerization toward Perfluorocyclobutyl and Ortho-Diynylarene-Derived Materials: From Synthesis to Practical Applications." Materials 14, no. 6 (2021): 1486. http://dx.doi.org/10.3390/ma14061486.

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Many desirable characteristics of polymers arise from the method of polymerization and structural features of their repeat units, which typically are responsible for the polymer’s performance at the cost of processability. While linear alternatives are popular, polymers composed of cyclic repeat units across their backbones have generally been shown to exhibit higher optical transparency, lower water absorption, and higher glass transition temperatures. These specifically include polymers built with either substituted alicyclic structures or aromatic rings, or both. In this review article, we

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Ewert, Ernest, Izabela Pospieszna-Markiewicz, Martyna Szymańska, et al. "New N4-Donor Ligands as Supramolecular Guests for DNA and RNA: Synthesis, Structural Characterization, In Silico, Spectrophotometric and Antimicrobial Studies." Molecules 28, no. 1 (2023): 400. http://dx.doi.org/10.3390/molecules28010400.

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The present work reports the synthesis of new N4-donor compounds carrying p-xylyl spacers in their structure. Different Schiff base aliphatic N-donors were obtained synthetically and subsequently evaluated for their ability to interact with two models of nucleic acids: calf-thymus DNA (CT-DNA) and the RNA from yeast Saccharomyces cerevisiae (herein simply indicated as RNA). In more detail, by condensing p-xylylenediamine and a series of aldehydes, we obtained the following Schiff base ligands: 2-thiazolecarboxaldehyde (L1), pyridine-2-carboxaldehyde (L2), 5-methylisoxazole-3-carboxaldehyde (L3

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Chang, L. L., D. L. Raudenbush, and S. K. Dentel. "Aerobic and anaerobic biodegradability of a flocculant polymer." Water Science and Technology 44, no. 2-3 (2001): 461–68. http://dx.doi.org/10.2166/wst.2001.0802.

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Flocculant polymers are used to improve the efficiency of separation processes used in wastewater treatment. The subsequent fate and effects of these additives are uncertain, however, with some previous reports indicating them to be biodegradable while others indicate complete recalcitrance. The biodegradability of a common flocculant polymer was therefore evaluated, using both aerobic and anaerobic batch assays. Knowledge of the polymer's chemical composition also allowed degradation stoichiometries to be calculated for complete biodegradation and also for incomplete degradation to several hy

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Becskereki, Gergely, George Horvai, and Blanka Tóth. "The Selectivity of Molecularly Imprinted Polymers." Polymers 13, no. 11 (2021): 1781. http://dx.doi.org/10.3390/polym13111781.

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The general claim about novel molecularly imprinted polymers is that they are selective for their template or for another target compound. This claim is usually proved by some kind of experiment, in which a performance parameter of the imprinted polymer is shown to be better towards its template than towards interferents. A closer look at such experiments shows, however, that different experiments may differ substantially in what they tell about the same imprinted polymer’s selectivity. Following a short general discussion of selectivity concepts, the selectivity of imprinted polymers is analy

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Mais fontes

Teses / dissertações sobre o assunto "Polymers"

Schlindwein, Walkiria Santos. "Conducting polymers and polymer electrolytes." Thesis, University of Leicester, 1990. http://hdl.handle.net/2381/33889.

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Polymers are mostly used as insulator materials. Since the late sixties, two new classes of polymeric materials possessing either ionic or electronic conductivities have been extensively studied. The work carried out in this thesis concerns of the study of polymer electrolytes based on poly(ethylene oxide) (PEO) complexed with divalent salts (ionic conductors) and polypyrroles (PPy) electrochemically and chemically prepared (electronic conductors). Different techniques were used to study their properties including Differential Scanning Calorimetry (DSC), Variable Temperature Polarising Microsc

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Muangpil, Sairoong. "Functionalised polymers and nanoparticle/polymer blends." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.654111.

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The incorporation of nanoparticles into polydimethylsiloxane polymers either in the form of physical blending or chemical crosslinking has long been studied as it can improve the properties of composite materials. Interactions between the host polymer and the filler particle, filler concentration and conformation of each component are the key factors that influence these properties. Understanding the effect of these factors is of fundamental importance in all practical applications of composite materials. This thesis describes the study of a range of PDMS composites by using a variety of exper

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Chester, Shawn Alexander. "Mechanics of amorphous polymers and polymer gels." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68898.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 345-356).<br>Many applications of amorphous polymers require a thermo-mechanically coupled large-deformation elasto-viscoplasticity theory which models the strain rate and temperature dependent response of amorphous polymeric materials in a temperature range which spans the glass transition temperature of the material. We have formulated such a theory, and also numerically implemented our theory in a finite element pr

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Mohagheghian, Iman. "Impact response of polymers and polymer nanocomposites." Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648854.

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Sun, Shuangyi. "Alkoxyphenacyl Polymers: A Novel Photodegradable Polymer Platform." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1424234383.

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Michal, Brian. "Multi-Functional Stimuli-Responsive Polymers." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1459440396.

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Amalou, Zhor. "Contribution à l'étude de la structure semi-cristalline des polymères à chaînes semi-rigides." Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210832.

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Les polymères semi-cristallins à chaînes semi-rigides, bien qu’abondamment utilisés dans la vie quotidienne, représentent des systèmes complexes qui ne sont pas encore parfaitement compris. Parmi les nombreux domaines de recherche sur cette famille de polymères, l’étude de la morphologie semi-cristalline et des processus de cristallisation et de fusion de ceux-ci restent des sujets très importants. L’investigation de la morphologie semi-cristalline est rendue difficile car elle présente une structure hiérarchique composée de plusieurs niveaux d’organisation, dont le plus petit est observable à

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Smartt, William Mark. "Formation of microporous polymer via thermally-induced phase transformations in polymer solutions." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/32853.

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Cooke, Richard Hunter III. "THE ENHANCEMENT OF PEROXIDE-CURED FLUOROELASTOMER RUBBER TO METAL BONDING." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1377022145.

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Yang, Lianyun. "Novel Ferroelectric Behavior in Poly(vinylidene fluoride-co-trifluoroethylene)-Based Random Copolymers." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1431686125.

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Mais fontes

Livros sobre o assunto "Polymers"

Powell, Peter C. Engineering with polymers. 2nd ed. Stanley Thornes, 1998.

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Godovsky, Yu K., K. Horie, A. Kaneda, et al. Speciality Polymers/Polymer Physics. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/bfb0017962.

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Akelah, A. Functionalized polymers and their applications. Chapman and Hall, 1990.

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Rubinson, Judith F., and Harry B. Mark, eds. Conducting Polymers and Polymer Electrolytes. American Chemical Society, 2002. http://dx.doi.org/10.1021/bk-2003-0832.

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Chiellini, Emo, Junzo Sunamoto, Claudio Migliaresi, Raphael M. Ottenbrite, and Daniel Cohn, eds. Biomedical Polymers and Polymer Therapeutics. Springer US, 2002. http://dx.doi.org/10.1007/b112950.

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I, Kroschwitz Jacqueline, ed. Polymers: Polymer characterization and analysis. Wiley, 1990.

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Emo, Chiellini, and International Symposium on Frontiers in Biomedical Polymers including Polymer Therapeutics: From Laboratory to Clinical Practice (3rd : 1999 : Shiga, Japan), eds. Biomedical polymers and polymer therapeutics. Kluwer Academic/Plenum Publishers, 2001.

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Donald, A. M. Liquid crystalline polymers. Cambridge University Press, 1992.

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Efremovich, Zaikov Gennadiĭ, Bouchachenko A. L, and Ivanov V. B, eds. Aging of polymers, polymer blends and polymer composites. Nova Science Publishers, 2002.

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Efremovich, Zaikov Gennadiĭ, Bouchachenko A. L, and Ivanov V. B, eds. Aging of polymers, polymer blends, and polymer composites. Nova Science Publishers, 2002.

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Capítulos de livros sobre o assunto "Polymers"

Xanthos, Marino. "Polymers and Polymer Composites." In Functional Fillers for Plastics. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527605096.ch1.

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Xanthos, Marino. "Polymers and Polymer Composites." In Functional Fillers for Plastics. Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527629848.ch1.

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Voisey, K. T. "Polymers and Polymer Composites." In The Engineer’s Guide to Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62937-2_6.

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Iftekhar, Huma. "Polymers in Dentistry." In Materials Research Foundations. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903353-17.

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Dentistry is notable for its diverse array of materials, which encompasses polymers, metal alloys, ceramics, composite materials and inorganic salts. Foundational understanding of polymer characteristics used in dentistry is beneficial because it offers insights pertinent for healthcare practice. Polymeric materials have found increased use in biological applications because of their many beneficial features and broad range of applicability. Significant advancement in the domains of engineering and nanotechnology has made these polymers possible to be customized for particular dental needs. In

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Walton, David J., and J. Phillip Lorimer. "General principles and historical aspects." In Polymers. Oxford University Press, 2000. http://dx.doi.org/10.1093/hesc/9780198503897.003.0001.

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This chapter provides an overview of polymers, which are formed by linking large numbers of small molecules together. Polymers are now ubiquitous in daily life. Not only have polymers found a wide use in structural and textile materials, polymer substitutes have also found a wide application in medicine. Moreover, synthetic polymers have had a sizeable impact in the field of fibres, plastics, and rubbers (elastomers). While the majority of polymers are synthetic polymers, there are natural polymers such as proteins, natural rubber, and cellulose, each of which could be fitted into a similar ca

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Han, Chang Dae. "Rheology of Particulate-Filled Polymers, Nanocomposites, and Fiber-Reinforced Thermoplastic Composites." In Rheology and Processing of Polymeric Materials: Volume 1: Polymer Rheology. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195187823.003.0018.

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Polymer composites consisting of a thermoplastic polymer forming the matrix phase and a large amount of inorganic particles (commonly referred to as fillers) or glass fibers, which are often referred to as particulate-filled polymers, are very common in the plastics and elastomer’s industries (Deanin and Schott 1974; Kraus 1965; Lubin 1969). Polymer composites are developed to achieve a set of properties not possessed by the thermoplastic polymer (i.e., polymeric matrix) alone. Polymeric matrices can be thermoplastics, which soften and behave as viscous liquids when heated to above their glass

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Han, Chang Dae. "Relationships Between Polymer Rheology and Polymer Processing." In Rheology and Processing of Polymeric Materials: Volume 1: Polymer Rheology. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195187823.003.0005.

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Polymer products have long been used for a variety of applications in our daily lives, as well as for some more exotic applications, such as biomedical devices, superhigh- speed airplanes, and outer-space vehicles. Other applications are too numerous to mention them all here. There are many steps involved in the production of polymer products, from the synthesis of raw materials to the manufacturing of the finished products. Of the many steps involved, the fabrication (processing) step plays a pivotal role in determining the quality of the final products. Successful processing of polymeric mat

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Sachdeva, Amit, and Pramod K. Singh. "Reliability Study of Polymers." In AI Techniques for Reliability Prediction for Electronic Components. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1464-1.ch002.

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The chapter deals with brief introduction to polymers, composites, and nanocomposites along with their reliability. When we talk about polymeric composites, the terms crystallinity and amorphicity play a very important role, and both of these properties are highly affected by variation in temperature condition. On increasing temperature, the crystalline domains of polymers tend to become amorphous, and as we reduce the temperature, crystalline domains tend to increase. So the reliability of a particular polymer is widely dependent on temperature conditions.

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Shirkhedkar, Atul A., Rajashri B. Sumbe, Kalyani A. Autade, Sachin N. Kothawade, and Amruta A. Banka. "Polymer Nanotechnology in Medicine." In Polymers in Modern Medicine (Part 1). BENTHAM SCIENCE PUBLISHERS, 2024. https://doi.org/10.2174/9789815274585124010006.

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Polymeric nanomaterials possess a distinct set of properties for systems due to their large surface area to mass ratio, high reactivity, and nanoscale size. These attributes make them unique in many application fields. Their application in nanomedicine has completely changed therapeutic and diagnostic modalities because they are precisely engineered materials at the molecular level. Nanoparticles are widely used in site-specific controlled delivery and direct targeting to increase pharmacological efficacy and decrease side effects. Polymers are potentially perfect for meeting the needs of ever

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Pawar, Ashish Y., Shubhangi N. Albhar, Sachin Namdeo Kothawade, and Deepak D. Sonawane. "Polymers in Diagnostics." In Polymers in Modern Medicine - Part 2. BENTHAM SCIENCE PUBLISHERS, 2024. https://doi.org/10.2174/9789815322378124010008.

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Historically, laboratory verification has been the mainstay of medical diagnostics. This has resulted in arduous processes, expensive equipment, and a shortage of medically educated workers, not to mention delayed findings. However, the growing need for point-of-care medical testing devices coupled with the ongoing medical and digital technology integration has made it easier to create devices that have high selectivity, specificity, and quick reaction times. Every pandemic has brought attention to the development of these devices on a global scale, underscoring the pressing need to improve ac

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Trabalhos de conferências sobre o assunto "Polymers"

Fivizzani, Kenneth P., Leonard Dubin, Barbara E. Fair, and John E. Hoots. "Manganese Stabilization by Polymers for Cooling Water Systems." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89433.

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Abstract Manganese from natural water sources causes deposition and associated corrosion problems in municipal and industrial water systems, particularly where chlorination is employed. Polymers are used to limit the precipitation of iron/manganese and manganese salts. Evidence for solubilization of manganese salts by polymeric and molecular agents has also been obtained. Factors such as dosage and composition have a significant impact on the performance of polymers. A polymer’s ability to perform effectively is also significantly affected by operating conditions such as temperature, pH, iron:

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Gu, Ji-Dong. "Microorganisms and Microbial Biofilms in the Degradation of Polymeric Materials." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03570.

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Abstract Biodegradation and biodeterioration of polymeric materials affect a wide range of industries including manufacturing, aviation and space. Degradability of polymeric materials by microorganisms has been observed and the degree of degradability is determined mostly by the chemical structures of polymeric materials and the presence of degradative microbial population. Current understanding of polymer degradability has been advanced in recent years through the application of advanced detection techniques in both the biology of microorganisms and corrosion science, but the subject is still

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Nicolas, George, Amannie Kweik, and Zahid Amjad. "Inhibitory Activity of Biopolymers, Synthetic Polymers, and Phosphonates against the Formation of Calcium Phosphate Scale in Cooling Water Systems." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09013.

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Abstract The inhibition of calcium phosphate (Ca/P) precipitation by natural organic polyelectrolytes, bio- and hybrid polymers, homo- and co-polymers of acrylic acid and maleic acid containing different functional groups was examined in aqueous solution. Additionally, commonly used phosphonates were also evaluated as Ca/P inhibitors. It has been found that performance of additive (polymeric and non-polymeric) as Ca/P inhibitor depends upon additive concentration, ionic charge, and molecular weight. Based on the inhibition data, the ranking in terms of decreasing effectives is: biopolymer &amp

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Amjad, Zahid, and Peter G. Koutsoukos. "A Current Review of Polymeric Dispersants and Their Practical Significance in Industrial Water Treatment." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12988.

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Abstract The fouling of equipment surfaces by suspended matter and precipitated scale forming salts is a critical concern to water technologists and plant operators. Certain feed waters, especially surface waters, require far more extensive pretreatment than sources such as deep wells. Polymeric dispersants are used in water treatment formulations to control fouling of equipment surfaces. This paper compares the performance of commercially available polymers as dispersants for a variety of suspended matter i.e., corrosion products, hydroxyapatite, clay, etc., under stressed industrial water sy

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Wilson, D. "Influence of Molecular Weight on Selection and Application of Polymeric Scale Inhibitors." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94048.

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Abstract A homologous series of polycarboxylic acids of varying molecular weight have been evaluated in performance tests for their activity against sulphate and carbonate scales. Assessment of compatibility with brines and polymer efficiency both before and after thermal and hydrolytic stability testing was determined using jar and capillary tube blocking tests. Simulated 'squeeze' treatments on core samples have been performed to study the adsorption/desorption behaviour of the range of polymers. From test results on the polymers, it can be demonstrated that polymer molecular weight has a ma

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Kweik, Amannie, and Zahid Amjad. "Study on the Effect of Polymer Architecture in Inhibiting Calcium Oxalate Precipitation." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13014.

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Abstract In this study, the effect of polymer architecture (i.e., composition, functional group, monomer type, etc.) on calcium oxalate (CaOx) precipitation in aqueous solution was investigated using the spontaneous precipitation method. The polymers tested include: natural, bio-, and synthetic homo- and copolymers. The experimental results show that performance of polymers as CaOx inhibitors strongly depends on polymer architecture and type and charge of comonomers. In general, polymers containing carboxyl group perform better than co- and terpolymers containing hydrophobic and bulky comonome

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Smyk, E. B., J. E. Hoots, K. P. Fivizzani, and K. E. Fulks. "The Design and Application of Polymers in Cooling Water Programs." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88014.

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Abstract Polymer technology for cooling water applications has advanced significantly in recent years. A variety of monomers and functional groups can be incorporated into a single polymer capable of handling a variety of problems. The development of cooling water polymers is traced through the design stage, screening and optimization, and final application testing. This process illustrates how structure can be modified to optimize performance. By choosing the best monomers and optimizing composition and molecular weight, new polymers with superior performance can be developed. These advanceme

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Bain, Douglas I., Grace Fan, Joseph Fan, and Robert J. Ross. "Scale and Corrosion Inhibition by Thermal Polyaspartates." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99120.

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Abstract Organic polymers have found wide spread use as inhibitors for the prevention of mineral scales in heat transfer equipment. Recently a biodegradable organic polymer has been developed which provides both scale and corrosion control. The development of the polymeric inhibitor and laboratory evaluations of scale and corrosion inhibition is discussed together with its potential application in open recirculating cooling systems.

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Bykov, Alexey, Galina Demidenko, Linda Nikoshvili, and Elena Bakhvalova. "INFLUENCE OF THE NATURE OF AROMATIC POLYMER AS A PT PARTICLE STABILIZER ON ITS ACTIVITY AND SELECTIVITY IN THE LIQUID-PHASE HYDROGENATION OF AROMATIC AND POLYAROMATIC SUBSTRATES." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.16.

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A series of platinum catalytic systems stabilized in aromatic polymers were obtained in this work. Commercially available styrene-divinylbenzene (MN100) and polymers synthesized by one-stage crosslinking by the Friedel-Crafts reaction from benzene, naphthalene, and an equimolar benzene-naphthalene mixture were used as polymers. The obtained systems were tested in liquid-phase hydrogenation reactions of benzene, toluene, and benzene-toluene mixture, as well as anthracene in a dodecane medium. The reaction products were studied using GC-MS. Polymers and catalytic systems were studied using diffu

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Liu, Y. S., H. S. Cole, and H. R. Philipp. "Interactions of excimer lasers with polymers." In International Laser Science Conference. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.fb2.

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Interaction of high photon energy (> 5-eV) radiation from excimer lasers with polymeric materials has drawn much interest because of its potential importance in material processing such as etching and patterning which have found use over a number of diversified fields such as medicine, polymer science, and microelectronics. The laser etching process is noncontact, maskless, selective, and offers a high spatial resolution. Although the topic has been the subject of numerous recent studies, basic parameters for understanding interactions between polymers and high energy photons are not well u

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Relatórios de organizações sobre o assunto "Polymers"

Lambeth, Robert H., Randy A. Mrozek, Joseph L. Lenhart, Yelena R. Sliozberg, and Jan W. Andzelm. Branched Polymers for Enhancing Polymer Gel Strength and Toughness. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada577092.

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Bohnert, G. W. Conductive Polymers. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/804936.

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Stavland, Arne, Siv Marie Åsen, Arild Lohne, Olav Aursjø, and Aksel Hiorth. Recommended polymer workflow: Lab (cm and m scale). University of Stavanger, 2021. http://dx.doi.org/10.31265/usps.201.

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Polymer flooding is one of the most promising EOR methods (Smalley et al. 2018). It is well known and has been used successfully (Pye 1964; Standnes & Skjevrak 2014; Sheng et al. 2015). From a technical perspective we recommend that polymer flooding should be considered as a viable EOR method on the Norwegian Continental Shelf for the following reasons: 1. More oil can be produced with less water injected; this is particularly important for the NCS which are currently producing more water than oil 2. Polymers will increase the aerial sweep and improve the ultimate recovery, provided a prop

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Salovey, Ronald, and John J. Aklonis. The Behavior of Polymers Filled with Monodisperse Polymeric Beads. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada242732.

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Pang, Yi. Exploring novel silicon-containing polymers---From preceramic polymers to conducting polymers with nonlinear optical properties. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5097635.

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Ortega, Yina, and Felipe Salcedo. Transforming agriculture: advancements in compost-biopolymers composites for enhanced sustainability. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps.ss.bbb.11.

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In the Cesar Department in Colombia, sustainable agriculture faces critical challenges despite its thriving livestock sector. Extensive cattle ranching and poor soil management worsen soil conditions. Additionally, significant environmental concerns arise from the substantial discharge of wastewater in the dairy processing industry. This study aims to valorize biosolids derived from wastewater during dairy plant disinfection to enhance sustainable livestock production. It explores the use of biosolids as the primary matrix for creating composted compounds and biopolymers for agricultural purpo

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Russell, Thomas P. Interfacial Behavior of Polymers: Using Interfaces to Manipulate Polymers. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1171152.

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Kempel, Leo, and Shanker Balasubramaniam. RF Polymers II. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada495291.

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Phillips, Shawn H., Timothy S. Haddad, Rusty L. Blanski, Andre Y. Lee, and Richard A. Vaia. Molecularly Reinforced Polymers. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada409917.

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Gordon, III, Runt Bernard, Painter James P., and Paul C. New Conducting Polymers. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada197009.

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