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Artigos de revistas sobre o assunto "Polystyrene"

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Capricho, Jaworski C., Krishnamurthy Prasad, Nishar Hameed, Mostafa Nikzad e Nisa Salim. "Upcycling Polystyrene". Polymers 14, n.º 22 (18 de novembro de 2022): 5010. http://dx.doi.org/10.3390/polym14225010.

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Several environmental and techno-economic assessments highlighted the advantage of placing polystyrene-based materials in a circular loop, from production to waste generation to product refabrication, either following the mechanical or thermochemical routes. This review provides an assortment of promising approaches to solving the dilemma of polystyrene waste. With a focus on upcycling technologies available in the last five years, the review first gives an overview of polystyrene, its chemistry, types, forms, and varied applications. This work presents all the stages that involve polystyrene’s cycle of life and the properties that make this product, in mixtures with other polymers, command a demand on the market. The features and mechanical performance of the studied materials with their associated images give an idea of the influence of recycling on the structure. Notably, technological assessments of elucidated approaches are also provided. No single approach can be mentioned as effective per se; hybrid technologies appear to possess the highest potential. Finally, this review correlates the amenability of these polystyrene upcycling methodologies to frontier technologies relating to 3D printing, human space habitation, flow chemistry, vertical farming, and green hydrogen, which may be less intuitive to many.
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Zhang, Shuang-Shuang, Shao-Kui Cao, Su Wang, Qiao-Ling Zhao, Jian-Zhuang Chen, Kun Cui e Zhi Ma. "Synthesis of well-defined α-fluorinated alkyl ester, ω-carboxyltelechelic polystyrenes and fabrication of their hydrophobic highly ordered porous films and microspheres". RSC Advances 5, n.º 111 (2015): 91140–46. http://dx.doi.org/10.1039/c5ra17073g.

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Zhang, Shuang-Shuang, Kun Cui, Jin Huang, Qiao-Ling Zhao, Shao-Kui Cao e Zhi Ma. "Synthesis of diverse α,ω-telechelic polystyrenes with di- and tri-functionality via tandem or one-pot strategies combining aminolysis of RAFT-polystyrene and a thiol–ene “click” reaction". RSC Advances 5, n.º 55 (2015): 44571–77. http://dx.doi.org/10.1039/c5ra06956d.

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Molodin, V. V., E. V. Vasenkov e P. L. Timin. "Work Head for 3D Printing of Insulated Walls from One-Stage Polystyrene Concrete". Materials Science Forum 992 (maio de 2020): 194–99. http://dx.doi.org/10.4028/www.scientific.net/msf.992.194.

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The 3D printer technology of insulating walls, using the technology of one-stage polystyrene concrete laid with electric heating of the initial mixture is described. This technology test’s results, confirming the possibility of layer-by-layer molding of the insulated wall with the bead polystyrene’s filler mixture was subjected to electro thermal treatment directly in the working head of the 3D printer were carried out. Polystyrene swells, changing the thermal characteristics of the material and, at the same time, compacting the mixture, and the 3D printer forms a quick-hardening working layer of a wall, being built from the hot mixture that is losing its mobility. The technological features of molding a wall of one-stage polystyrene concrete by a 3D printer, the uniform distribution of polystyrene granules in it and its strength were investigated. The possibility of the proposed technology using in the construction industry was proved.
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Qin, Yuman, e Shoubhik Das. "Photochemical Upcycling/Modification of Polystyrene-based Plastic Waste". CHIMIA 77, n.º 12 (20 de dezembro de 2023): 830–35. http://dx.doi.org/10.2533/chimia.2023.830.

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The escalating accumulation of plastic waste in landfills and marine environments has become a pressing concern to society. Among all plastic-based waste, polystyrenes are widely utilized as a commodity plastic and present very low recyclability. To improve this scenario, photocatalysis has recently become one of the viable techniques which can be performed under mild conditions. In this concise review, we have highlighted recent advancements in the valorization of polystyrene-based plastic waste by mainly focusing on the selective functionalization of the C–H bonds. This strategy clearly holds strong promise for the sustainable and efficient conversion of polystyrene-based waste and contributes to the reduction of waste and resource conservation.
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Donchak, Volodymyr, e Khrystyna Harhay. "Synthesis of fluorinated polystyrene". Chemistry & Chemical Technology 2, n.º 1 (15 de março de 2008): 11–14. http://dx.doi.org/10.23939/chcht02.01.011.

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Acylation of polystyrene with trifluoroacetic anhydride in a solution of aprotonic solvents, namely 1,2-dichloroethane, chlorobenzene at the presence of Lewis acid as catalyst results in obtaining of fluorinated polystyrene, which posses trifluoroacetic fragments in benzoic rings, preferably in position 4. In order to achieve a total substitution of benzene rings in polystyrene macromolecules, the ratio polystyrene : trifluoroacetic anhydride : AlCl3 must be at least 1:10:2.2 mol correspondingly
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Hoang Minh, Duc, e Ly Le Phuong. "Effect of matrix particle size on EPS lightweight concrete properties". MATEC Web of Conferences 251 (2018): 01027. http://dx.doi.org/10.1051/matecconf/201825101027.

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Expanded polystyrene lightweight concrete is a composite which can be made by adding expanded polystyrene aggregate in normalweight concrete (as matrix). The research was focused on the effect of properties and volume of the matrix on the properties of lightweight concrete. The results show that properties of structural polystyrene concrete, such as workability and compressive strength, depend on the aggregate size of the matrix. It also shows that decreasing aggregate size of the matrix is the effective way to increase workability and compressive strength of lightweight concrete. When the density of concretes decrease by 200 kg/m³, slump values decrease by about 20 to 30 mm with lightweight concrete mixtures using maximum particle size of 0.63 mm, while slump values decrease by about 40 mm with the mixtures using maximum particle size of 20 mm. At the same density, the compressive strength of the structural polystyrenre concrete significantly decreased when the coarse aggregate diameter greater than 10 mm. Therefore, coarse aggregates with diameter size are smaller than 10 mm was recommended to use for matrix. In the result, expanded polystyrene concrete with density from 1,400 kg/m³ to 2,000 kg/m³ and compressive strength more than 20 MPa for structural application was made.
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Elkin, Tatyana, Stacy Copp, Ryan Hamblin, Jennifer Martinez, Gabriel Montaño e Reginaldo Rocha. "Synthesis of Terpyridine-Terminated Amphiphilic Block Copolymers and Their Self-Assembly into Metallo-Polymer Nanovesicles". Materials 12, n.º 4 (17 de fevereiro de 2019): 601. http://dx.doi.org/10.3390/ma12040601.

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Polystyrene-b-polyethylene glycol (PS-b-PEG) amphiphilic block copolymers featuring a terminal tridentate N,N,N-ligand (terpyridine) were synthesized for the first time through an efficient route. In this approach, telechelic chain-end modified polystyrenes were produced via reversible addition-fragmentation chain-transfer (RAFT) polymerization by using terpyridine trithiocarbonate as the chain-transfer agent, after which the hydrophilic polyethylene glycol (PEG) block was incorporated into the hydrophobic polystyrene (PS) block in high yields via a thiol-ene process. Following metal-coordination with Mn2+, Fe2+, Ni2+, and Zn2+, the resulting metallo-polymers were self-assembled into spherical, vesicular nanostructures, as characterized by dynamic light scattering and transmission electron microscopy (TEM) imaging.
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Li, Jiang, Guoqing Wang, Chunhua Ding, Hong Jiang e Peiqing Wang. "Synthesis and evaluation of polystyrene–polybutadiene–polystyrene–dodecafluoroheptyl methacrylate/polystyrene–polybutadiene–polystyrene hybrid antifouling coating". Journal of Colloid and Interface Science 434 (novembro de 2014): 71–76. http://dx.doi.org/10.1016/j.jcis.2014.07.043.

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Ingratta, Mark, Manoj Mathew e Jean Duhamel. "How switching the substituent of a pyrene derivative from a methyl to a butyl affects the fluorescence response of polystyrene randomly labeled with pyrene". Canadian Journal of Chemistry 88, n.º 3 (março de 2010): 217–27. http://dx.doi.org/10.1139/v09-167.

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A series of polystyrenes randomly labeled with 1-pyrenebutanol were prepared by copolymerizing styrene and 1-pyrenebutylacrylate yielding the CoBuE–PS series. Solutions of CoBuE–PS were prepared in nine organic solvents having viscosities ranging from 0.36 to 5.5 mPa·s and the fluorescence spectra and pyrene monomer and excimer fluorescence decays were acquired. Analysis of the fluorescence spectra yielded the IE/IM ratio, whereas analysis of the fluorescence decays with the fluorescence blob model (FBM) yielded the parameters N blobo , <kblob × Nblob> , and k blobo . These parameters were compared to those obtained with two other series of pyrene-labeled polystyrenes, which had been studied earlier, namely CoA–PS and CoE–PS where pyrene was attached to the polymer backbone via a methylamide and benzyl methylether linker, respectively. Although the parameters IE/IM, N blobo , <kblob × Nblob>, and k blobo took different values according to the specific nature of the linker connecting pyrene to the polystyrene backbone, they exhibited trends that were quite similar for all the pyrene-labeled polystyrene constructs. The excellent agreement between the parameters retrieved for the three different types of pyrene-labeled polystyrenes suggests that the FBM accounts satisfyingly for differences in the nature of the label used, while still retrieving information pertinent to the polymer of interest.
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Teses / dissertações sobre o assunto "Polystyrene"

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Simard, Yan. "Thermolysis of polystyrene". Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68051.

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Styrene was recovered from polystyrene (molecular weight of 138 000) by thermolysis in a nitrogen atmosphere at temperatures between 368$ sp circ$C and 407$ sp circ$C. The results were independent of the initial weight of polystyrene which was varied between 30 and 480 grams. Up to 70% of the polystyrene was converted to styrene. The styrene yield increased with temperature. At higher temperatures, the residue left in the reactor consisted mainly of styrene monomer, dimer and trimer (MW of 190). The maximum rate constant of volatile production was found to fit a first order model. The activation energy obtained was 166.5 kJ/mol, which is in accordance with literature values.
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Califano, Rosa. "Functionalized Syndiotactic Polystyrene". Doctoral thesis, Universita degli studi di Salerno, 2012. http://hdl.handle.net/10556/306.

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2010 - 2011
La sintesi di materiali polimerici da metodo di modificazione, per ottenere le proprietà desiderate in polimeri, è un argomento importante in chimica dei polimeri e tecnologia. Molto spesso, proprietà desiderate non sono raggiungibili dalle proprietà di un omopolimero singolo. Una strategia comunemente utilizzato per raggiungere questo scopo è l'ancoraggio di gruppi funzionali specifici lungo le catene polimeriche In questo contesto che l'interesse nella funzionalizzazione di polistirene sindiotattico (s-PS) sorge, uno semi-cristallina polimero termoplastico che dispone di basso costo e eccellenti proprietà meccaniche e dielettriche, eccellente resistenza al calore e resistenza ai solventi. Inoltre, il sPS ha un polimorfismo complessa e la peculiarità che due delle sue forme note cristalline sono nanoporoso che sono caratterizzate della presenza di spazi vuoti (cavità nel δ-form e canali in forma ε) all'interno del reticolo cristallino, in grado per accogliere piccole molecole. Questa tesi presenta nuova strategia selettiva funzionalizzazione per solo fase amorfa di s-PS che al tempo stesso non cambia la fase cristallina e pertanto tutte le caratteristiche del s-PS. La solfonazione permette di introdurre un gruppo polare acido sulle catene polimeriche della fase amorfa di s-PS, che rende il polimero idrofilo, con una capacità di scambio protonico, da qui l'idea di usare pellicole solfonati di sPS come membrane polyelectrolytic in carburante cellule. [a cura dell'autore]
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PIEL, SYLVIE. "Relations structure-proprietes de copolymeres triblocs polystyrene bloc-polyisoprene bloc-polystyrene". Paris 6, 1993. http://www.theses.fr/1993PA066446.

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Plusieurs copolymeres triblocs polystyrene bloc polyisoprene bloc polystyrene, sis, ont ete soumis a l'examen des relations structures chimiques et microscopiques proprietes physiques et mecaniques. La viscosite des solutions des sis dissous dans du toluene suit une loi fonction de ne#c#c#e, nombre de nuds equivalents developpes par la chaine totale, dans le milieu. Cette loi est en ne#c#c#e#3#,#4, tant que le milieu reste concentre et enchevetre. Pour les analyses en mecanique dynamique mesurees entre 100c et +200c, nous avons montre l'importance du role joue par la longueur de chacun des blocs. On doit considerer a la fois les effets d'enchevetrements du bloc polystyrene et les nature et qualite de la morphologie. Dans le cas des elastomeres, le module tangent a la courbe de traction, etg, suit une loi derivee du modele de nielsen. Les diagrammes de mooney rivlin revelent quant a eux l'importance du role tenu par les nodules de polystyrene. Selon la longueur du segment polystyrene, celui-ci, en plus de sa fonction d'agent de reticulation chimique, peut ou non etre assimile a une charge renforcante. Le traitement des courbes d'hysterese constitue un double moyen de distinction des morphologies et de mise en evidence de phenomenes anormaux de dissipation d'energie
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Mailhot-Jensen, Bénédicte. "Etude des mécanismes de photooxydation du polystyrène, du polyacrylonitrile et du polystyrene-co-acrylonitrile". Clermont-Ferrand 2, 1993. http://www.theses.fr/1993CLF21502.

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Les comportements photochimiques du polystyrène, du polyacrylonitrile et du poly(styrene-co-acrylonitrile), sous irradiations a courte longueur d'onde (egale a 254 nm) et a grandes longueurs d'onde (superieures ou egales a 300 nm), ont été étudiés. Différentes techniques d'identification des photoproduits formes lors de l'irradiation des polymères sous forme de films solides ont été utilisées: spectroscopies irtf et uv-visible, chromatographie hplc. D'autres méthodes, permettant de transformer spécifiquement les photoproduits, ont été associées a ces techniques analytiques: traitements chimiques (sf#4,nh#3,hcl,ch#3oh,h#2o) et traitements physiques (photolyse, thermolyse et thermooxydation). L'identification des photoproduits et la caractérisation de leur stabilité thermique et photochimique ont permis d'établir le mécanisme de photooxydation de chacun des trois polymères étudiés
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Dehonor, Gomez Mariamme. "Polystyrene grafting of CNx nanotubes for the elaboration of polystyrene-based nanocomposites". Lyon, INSA, 2007. http://theses.insa-lyon.fr/publication/2007ISAL0033/these.pdf.

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This thesis is concerned to the development of novel engineered surface materials using nitrogen-doped carbon nanotubes (CNx) that were grafted with polystyrene (PS) chains using in situ radical polymerization controlled by nitroxides. The in situ polymerization method involved two main steps, the radical attachment of a system initiator-controller that could follow a Nitroxide Mediated Radical Polymerization (NMRP) in solution. The chemically modified carbon nanotubes were used in the preparation of polymer-nanotube composites with the aim of improving the dispersion of nanotubes within the matrix, but also the interfacial adhesion between them. The produces polymer-grafted Cnxnanotubes were used as nanofillers using several kind of matrices (amorphous PS, semicrystalline polyethylene oxide (PEO) and immiscible blends PS-PEO. An extensive characterization was performed on the obtained modified CNx nantubes and polymer-nanotube composites in order to evaluate their physical and chemical properties
Cette thèse concerne le développement de nouveaux matériaux à base de nanotubes de carbone dopés à l’azote (CNx) sur lesquels des chaînes de polystyrène (PS) ont été greffés in situ par polymérisation radicalaire contrôlée par des nitroxides. La méthode de polymérisation in situ se décompose en deux étapes principales : l’attachement radicalaire d’un système initiateur – contrôleur, suivi d’une polymérisation radicalaire type NMRP (Nitroxide Mediated Polymerization) en solution. Les nanotubes de carbone modifiés chimiquement sont ensuite utilisés pour l’élaboration de composites polymères – nanotubes. Le greffage de polymère est censé améliorer la dispersion des nanotubes dans la matrice ainsi que l’adhésion interfaciale nanotubes-matrice. Plusieurs types de matrices sont étudiées (PS amorphe, PEO semi-cristallin et mélanges PS-PEO). Une caractérisation approfondie a été menée sur les composites à renfort de nanotubes greffés, pour évaluer l’impact du greffage sur les propriétés mécaniques et électriques des composites
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Dehonor, Gomez Mariamme Terrones Maldonado Mauricio Gauthier Catherine Gonzalez Montiel Alfonso. "Polystyrene grafting of CNx nanotubes for the elaboration of polystyrene-based nanocomposites". Villeurbanne : Doc'INSA, 2008. http://docinsa.insa-lyon.fr/these/pont.php?id=dehonor_gomez.

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Varadi, Jasline Deepthi Das. "Scratch Behavior of Polystyrene". University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1259183439.

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Wingert, Maxwell. "Carbon dioxide foaming and High-pressure rheology of polystyrene and polystyrene/organoclay nanocomposites". The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1167770881.

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Dohnalová, Tea. "Skleněný pastýř". Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2019. http://www.nusl.cz/ntk/nusl-396117.

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The topic of my thesis are menhirs. Specifically, the largest Czech menhir known as the Stone Shepherd (3200 cm). The aim of this work was to transfer the exact shape and size of this megalith and materialize it here in Brno. This goal required the use of many procedures. At the beginning there was a photo shoot, then a 3D program, 3D program editing, and slicing into contour lines. Then I projected the menhir on a wall in real size and traced it to polystyrene boards. The next step was to cut out all 104 plates on a band saw and I could go to gluing and folding the whole object. The final step was to paint the object in white. The result is a simple and clean polystyrene object. I did not cover the contour lines - I present the object in the most direct form possible. The styrofoam megalith, despite its size, is a sculpture in the interior. Ideally, I would create an installation that would create a separate, isolated space for the object.
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Pukančíková, Andrea. "Praktické aspekty blokové polymerace styrenu". Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-216622.

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The diploma thesis deals with radical bulk polymerization of styrene. Recent knowledges about mono- and multifunctional initiators of radical polymerization and coordination polymerization of styrene with metalocene initiators are summarized in theoretical part. Experimental part of diploma thesis is focused on relationship between polymerization conditions and conversion, molecular mass and distribution of molecular mass. Experiments carried out with monofunctional initiators (dibenzoylperoxide, dilauroylperoxide, tert-butylperbenzoate) and with bifunctional initiators (Luperox 101 and Luperox 256). Polymerizations took place at temperatures from 80 to 134 °C, reaction time was from 1 to 24 hours, and pressure was 100 and 500 kPa. Conversion of monomer was determined by gravimetry and infrared spectroscopy. Molecular mass and indexes of polydisperzity were measured by gel permeation chromatography in solutions of polystyrene with tetrahydrofurane at temperature 23 °C.
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Livros sobre o assunto "Polystyrene"

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Schellenberg, Jrgen, ed. Syndiotactic Polystyrene. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470557006.

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Ita, Paul A., e Pam Safarek. World polystyrene. Cleveland, Ohio: Freedonia Group, 1998.

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Branch, Ontario Waste Management, Industrial Waste Diversion Program (Ont.) e Plast-Ex Inc, eds. Expandable polystyrene recycling. Toronto: Ministry of the Environment, 1991.

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Books, Roof, ed. Styrofoam. New York: Roof Books, 2009.

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Crevecoeur, J. Water expandable polystyrene (weps). Eindhoven: Eindhoven University ofTechnology, 1997.

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executive, Health and safety. Expanded polystyrene moulding machines. London: H.M.S.O., 1986.

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Gray, James E. Polystyrene: Properties, performance, and applications. New York: Nova Science Publishers, 2011.

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Hammond, Timothy. A study of polystyrene pyrolysis. Birmingham: University of Birmingham, 1986.

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Hancox, Robert Neil. Polystyrene pyrolysis: Kinetics and mechanisms. Birmingham: University of Birmingham, 1989.

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John, Scheirs, e Priddy Duane, eds. Modern styrenic polymers: Polystyrenes and styrenic copolymers. Chichester, West Sussex, England: J. Wiley, 2003.

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Capítulos de livros sobre o assunto "Polystyrene"

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Bährle-Rapp, Marina. "Polystyrene". In Springer Lexikon Kosmetik und Körperpflege, 441. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_8218.

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Gooch, Jan W. "Polystyrene". In Encyclopedic Dictionary of Polymers, 571–72. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9215.

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Baker, Ian. "Polystyrene". In Fifty Materials That Make the World, 175–78. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78766-4_33.

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Peacock, Andrew J., e Allison Calhoun. "Polystyrene". In Polymer Chemistry, 309–23. München: Carl Hanser Verlag GmbH & Co. KG, 2006. http://dx.doi.org/10.3139/9783446433434.021.

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Mishra, Munmaya, e Biao Duan. "Polystyrene". In The Essential Handbook of Polymer Terms and Attributes, 184–85. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003161318-179.

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Whelan, Tony, e John Goff. "Toughened Polystyrene". In Injection Molding of Thermoplastics Materials — 1, 60–69. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-0582-9_4.

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Gooch, Jan W. "Crystal Polystyrene". In Encyclopedic Dictionary of Polymers, 185. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_3158.

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Beyer, Leslie A., e Julie E. Goodman. "Polystyrene/Styrene". In Hamilton & Hardy's Industrial Toxicology, 809–14. Hoboken, New Jersey: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118834015.ch79.

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Steiner, G., e C. Zimmerer. "Polystyrene (PS)". In Polymer Solids and Polymer Melts – Definitions and Physical Properties I, 997–1005. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32072-9_113.

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Terashima, Takaya. "Polystyrene (PSt)". In Encyclopedia of Polymeric Nanomaterials, 1–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-36199-9_255-1.

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Trabalhos de conferências sobre o assunto "Polystyrene"

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Wang, Jing, David F. James, Chul B. Park, Albert Co, Gary L. Leal, Ralph H. Colby e A. Jeffrey Giacomin. "Planar Extensional Viscosity of Polystyrene and Polystyrene∕CO[sub 2] Solution". In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964859.

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Altavilla, Claudia, Filippo Fedi, Andrea Sorrentino, Salvatore Iannace e Paolo Ciambelli. "Polystyrene/MoS2@oleylamine nanocomposites". In TIMES OF POLYMERS (TOP) AND COMPOSITES 2014: Proceedings of the 7th International Conference on Times of Polymers (TOP) and Composites. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4876811.

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3

Walter, Mark E., Changchun Zeng, Wenxia Li, John J. Lannutti e L. Jim Lee. "Damage Formation During Fracture of Polystyrene/Clay and Polystyrene/Nanoporous Silica Nanocomposites". In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43406.

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Although clay-based polymer nanocomposites provide enhanced chemical properties, the mechanical properties and in particular, the effects of the nanoscale particles on mechanical properties, are not yet well understood. For this study, two types of raw polystyrene specimens, three polystyrene/clay nanocomposites, and one polystyrene/nanoporous silica nanocomposite were investigated. The nanocomposites differed in that one was produced through mechanical mixing, one through in situ polymerization, and one through exfoliation of the clay. All the clay composites had 5% particulate loading and tensile properties were similar. Standard three-point-bend fracture tests were performed to determine the fracture toughnesses of the different polystyrene nanocomposites and to investigate crack resistance curves. The process zone during crack propagation was observed in situ with an optical stereo microscope and with an optical profilometer. Post-test analysis of the microstructure and fracture surfaces was performed with electron microscopy. For the 5% particle loadings all composite polystyrene systems have lower toughnesses than the raw polystyrene.
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4

Lord, T. D., J. Embery, M. Tassieri, S. A. Butler, P. Hine, M. R. Mackley, Albert Co, Gary L. Leal, Ralph H. Colby e A. Jeffrey Giacomin. "The Rheology of Optically Transparent Polystyrene Blends Filled With Cross-Linked Polystyrene Beads." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964456.

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5

Miri, Narges, Morteza Mohammadzaheri e Lei Chen. "Optical sensing by polystyrene microspheres". In 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2013. http://dx.doi.org/10.1109/aim.2013.6584338.

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6

Sen, Nirvik, T. Shaik, K. K. Singh, R. S. Sirsam e K. T. Shenoy. "Microfluidic synthesis of polystyrene nanoparticles". In DAE SOLID STATE PHYSICS SYMPOSIUM 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0025336.

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7

Lu, Guo-Zhong, Xiu-Juan Ding, Jia-Yang Zhang, Yu Deng e Cong-Cong Li. "Preparation of Thermosetting Polystyrene Insulation Board". In 2nd Annual International Conference on Advanced Material Engineering (AME 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/ame-16.2016.155.

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8

Makai, András, Judit Kiss e Gábor Mucsi. "The Possibilities of Polystyrene Waste Recycling". In MultiScience - XXX. microCAD International Multidisciplinary Scientific Conference. University of Miskolc, 2016. http://dx.doi.org/10.26649/musci.2016.008.

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9

Grewell, David, e Avraham Benatar. "Laser microwelding of polystyrene and polycarbonate". In ICALEO® 2003: 22nd International Congress on Laser Materials Processing and Laser Microfabrication. Laser Institute of America, 2003. http://dx.doi.org/10.2351/1.5060171.

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10

Fan, Yiqiang, Huawei Li e Ian G. Foulds. "Integrated lenses in polystyrene microfluidic devices". In 2013 8th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2013. http://dx.doi.org/10.1109/nems.2013.6559692.

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Relatórios de organizações sobre o assunto "Polystyrene"

1

Abrefah, John, e George S. Klinger. Thermal Decomposition of Radiation-Damaged Polystyrene. Office of Scientific and Technical Information (OSTI), setembro de 2000. http://dx.doi.org/10.2172/965178.

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2

J Abrefah GS Klinger. Thermal Decomposition of Radiation-Damaged Polystyrene. Office of Scientific and Technical Information (OSTI), setembro de 2000. http://dx.doi.org/10.2172/763386.

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3

Mulholland, George, Gary Hembree e Arie Hartman. Sizing of polystyrene spheres produced in microgravity. Gaithersburg, MD: National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.ir.84-2914.

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4

Guttman, C. M., W. R. Blair e J. R. Maurey. Recertification of the SRM 706a, a polystyrene. Gaithersburg, MD: National Institute of Standards and Technology, 1998. http://dx.doi.org/10.6028/nist.ir.6091.

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5

Rao, G. R., L. Riester e E. H. Lee. Depth-independent hardness improvements in ion irradiated polystyrene. Office of Scientific and Technical Information (OSTI), dezembro de 1994. http://dx.doi.org/10.2172/34424.

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6

Cazzaniga, L., e R. E. Cohen. Synthesis and Characterization of Isotactic Polystyrene-Polybutadiene Block Copolymers. Fort Belvoir, VA: Defense Technical Information Center, outubro de 1988. http://dx.doi.org/10.21236/ada201701.

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7

Kesavanathan, Jana, e Robert W. Doherty. Test Procedure for Removing Polystyrene Latex Microspheres from Membrane Filters. Fort Belvoir, VA: Defense Technical Information Center, julho de 1999. http://dx.doi.org/10.21236/ada367979.

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8

Largo, Sherly R., Timothy S. Haddad, Rene I. Gonzalez e Constance Schlaefer. The Specific Refractive Index Increment for Isobutyl Poss-Polystyrene Copolymers. Fort Belvoir, VA: Defense Technical Information Center, janeiro de 2003. http://dx.doi.org/10.21236/ada419049.

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9

Lettieri, Thomas R., e Gary G. Hembree. Certification of NBS SRM 1691: 0.3�m-diameter polystyrene spheres. Gaithersburg, MD: National Bureau of Standards, janeiro de 1988. http://dx.doi.org/10.6028/nbs.ir.87-3730.

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10

Ding, Zheng-You, Shenmin Ma, Dennis Kriz, J. J. Aklonis e R. Salovey. Model Filled Polymers .11. Synthesis of Uniformly Crosslinked Polystyrene Microbeads. Fort Belvoir, VA: Defense Technical Information Center, junho de 1991. http://dx.doi.org/10.21236/ada237472.

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