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Relevant bibliographies by topics / Heterogeneous Polystyrene

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Academic literature on the topic 'Heterogeneous Polystyrene'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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Journal articles on the topic "Heterogeneous Polystyrene"

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Barbosa, Antonio C. F., Marcelo R. Pace, Luciana Witovisk, and Veronica Angyalossy. "A new method to obtain good anatomical slides of heterogeneous plant parts." IAWA Journal 31, no. 4 (2010): 373–83. http://dx.doi.org/10.1163/22941932-90000030.

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A new method is presented to prepare anatomical slides of plant materials including a combination of soft and hard tissues, such as stems with cambial variants, arboreal monocotyledons, and tree bark. The method integrates previous techniques aimed at softening the samples and making them thereby more homogeneous, with the use of anti-tearing polystyrene foam solution. In addition, we suggest two other alternatives to protect the sections from tearing: adhesive tape and/or Mayer’s albumin adhesive, both combined with the polystyrene foam solution. This solution is cheap and easy to make by dis

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Yin, Ruizhi, Enxi Shen, Chenjia Liang, Dezhong Song, Samir El Hankari, and Jia Huo. "Utilizing Recycled Expanded Polystyrene Plastics to Stabilize Metal–Organic Frameworks for Heterogeneous Catalysis." Processes 12, no. 5 (2024): 961. http://dx.doi.org/10.3390/pr12050961.

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Polystyrene plastics present significant environmental and human health threats due to their poor recyclability and degradability. However, leveraging their properties to enhance material performance stands out as one of the most effective strategies for mitigating these issues. Here, we have employed recycled expanded polystyrene plastics to manufacture metal–organic framework/expanded polystyrene plastic composites (MOF@EPP) using an adverse solvent precipitation method. This method simultaneously recycles EPPs and safeguards moisture-sensitive MOFs. Due to the exceptional hydrophobic proper

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Malik, Muhammad Salman, Asif Ali Qaiser, and Muhammad Ahmed Arif. "Structural and electrochemical studies of heterogeneous ion exchange membranes based on polyaniline-coated cation exchange resin particles." RSC Advances 6, no. 116 (2016): 115046–54. http://dx.doi.org/10.1039/c6ra24594c.

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Lemaire, Marc. "Heterogeneous asymmetric catalysis." Pure and Applied Chemistry 76, no. 3 (2004): 679–88. http://dx.doi.org/10.1351/pac200476030679.

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Examples of enantioselective catalysts, including homogeneous supported catalysts and biphasic liquid/liquid, are described and compared. In the case of asymmetric hydride transfer, polythiourea was proven to be more efficient for ruthenium-catalyzed reduction of arylketones, although the iridium complexes gave rise to higher ee when using amino sulfonamide bound to a polystyrene matrix. In the case of asymmetric reduction, the modification of the binap allows the formation of a polymer that could be used as a catalyst precursor and exhibits enantioselectivities as high as observed in solution

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Yu, Rongbing, Shupeng Zhang, Yuting Luo, Ruofei Bai, Jiangfang Zhou, and Haiou Song. "Synthetic possibility of polystyrene functionalization based on hydroxyl groups of graphene oxide as nucleophiles." New Journal of Chemistry 39, no. 7 (2015): 5096–99. http://dx.doi.org/10.1039/c5nj00815h.

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Wang, Chia-Ying, and M. D. Ediger. "Lifetime of spatially heterogeneous dynamic domains in polystyrene melts." Journal of Chemical Physics 112, no. 15 (2000): 6933–37. http://dx.doi.org/10.1063/1.481319.

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Dong, Laura Beth, Salomon Turgman-Cohen, George W. Roberts, and Douglas J. Kiserow. "Effect of Polymer Size on Heterogeneous Catalytic Polystyrene Hydrogenation." Industrial & Engineering Chemistry Research 49, no. 22 (2010): 11280–86. http://dx.doi.org/10.1021/ie1011905.

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Nair, Vipin A., Suni M. Mustafa, and Sreekumar Krishnapillai. "Polystyrene Supported Manganese Complexes: Heterogeneous Catalysts for Oxidation Reactions." Journal of Polymer Research 10, no. 4 (2003): 267–73. http://dx.doi.org/10.1023/b:jpol.0000004629.53837.b3.

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Liang, Yeru, Luyi Chen, Dongyang Zhuang, et al. "Fabrication and nanostructure control of super-hierarchical carbon materials from heterogeneous bottlebrushes." Chemical Science 8, no. 3 (2017): 2101–6. http://dx.doi.org/10.1039/c6sc03961h.

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Super-hierarchical carbons with a unique carbonaceous hybrid nanotube-interconnected porous network were fabricated by utilizing well-defined carbon nanotube@polystyrene bottlebrushes as building blocks.

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Sharma, Saurabh, Yamini Yamini, and Pralay Das. "Hydrogenation of nitroarenes to anilines in a flow reactor using polystyrene supported rhodium in a catalyst-cartridge (Cart-Rh@PS)." New Journal of Chemistry 43, no. 4 (2019): 1764–69. http://dx.doi.org/10.1039/c8nj04646h.

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The present methodology described the chemo-selective hydrogenation of various nitroarenes in a flow reactor under polystyrene supported rhodium in a catalyst-cartridge (Cart-Rh@PS) as a heterogeneous nano-catalyst.

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Dissertations / Theses on the topic "Heterogeneous Polystyrene"

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Chattopadhyay, S. "Synthesis and compatibilizing effect of well defined linear and branched copolymers in heterogeneous polystyrene-rubber blends." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1999. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/3919.

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Noble, Kristen Felice. "Tailored Chain Sequences of Brominated Syndiotactic Polystyrene Copolymers via Post-Polymerization Functionalization in the Heterogeneous Gel State." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/93515.

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This dissertation demonstrates the preparation of blocky brominated syndiotactic polystyrene (sPS-co-sPS-Br) copolymers with tailored chain sequences using a simple, post-polymerization functionalization method conducted in the heterogeneous gel state, and investigates the effect of sPS reaction state and sPS/solvent gel morphology on the copolymer microstructure and thermal properties. Gel-state (Blocky) brominated copolymers were prepared from a 10 w/v% sPS/carbon tetrachloride (CCl4) gel and a 10 w/v% sPS/chloroform (CHCl3) gel in a matched set containing 6−32 mol% p-bromostyrene (Br-Sty) u

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Fahs, Gregory Bain. "The Effect of Ionomer Architecture on the Morphology in Gel State Functionalized Sulfonated Syndiotactic Polystyrene." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/97193.

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This dissertation presents a discussion of blocky and randomly functionalized sulfonated syndiotactic polystyrene copolymers. These copolymers have been prepared over a range of functionalization (from 2% to 10%) in order to assess the effect of the incorporation of these polar side groups on both the thermal behavior and morphology of these polymer systems. The two different architectures are achieved by conducting the reaction in both the heterogeneous gel-state to obtain blocky copolymers and in the homogeneous solution state to obtain randomly functionalized copolymers. In order to compare

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Langhe, Deepak. "POLYMER CRYSTALLIZATION IN DROPLETS AND CONFINED LAYERS USING MULTILAYERED FILMS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1317931856.

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Fisher, Daniel C. "PREPARATION AND APPLICATION OF CATALYSTS FOR THE STEREOSPECIFIC REDUCTION AND PHOTOOXYGENATION OF OLEFINS IN CONTINUOUS OPERATIONS: A NOVEL METHOD FOR THE PRODUCTION OF ARTEMISININ." VCU Scholars Compass, 2017. https://scholarscompass.vcu.edu/etd/5159.

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Over the last two centuries, the discovery and application of catalysts has had a substantial impact on how and what chemicals are produced.Given their broad significance, our group has focused on developing new catalyst systems that are recoverable and reusable, in an attempt to reduce concomitant costs. Our efforts have centered on constructing a recyclable chiral heterogeneous catalyst capable of effecting asymmetric hydrogenations of olefins with high stereoselectivity. A class of phosphinoimidazoline ligands, developed by researchers at Boehringer-Ingelheim, known as BIPI ligands, have pr

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Santos, Fábio Júnior Mota dos. "Espumas de poliestireno impregnadas com nanopartículas de ouro para a redução do p-nitrofenol." Universidade Estadual da Paraíba, 2017. http://tede.bc.uepb.edu.br/jspui/handle/tede/3026.

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Submitted by Jean Medeiros (jeanletras@uepb.edu.br) on 2018-05-18T12:53:12Z No. of bitstreams: 1 PDF - Fábio Junior Mota dos Santos.pdf: 16470271 bytes, checksum: 931fe4e9cb3a582ced25e4d4c19d1ffc (MD5)<br>Made available in DSpace on 2018-05-18T12:53:12Z (GMT). No. of bitstreams: 1 PDF - Fábio Junior Mota dos Santos.pdf: 16470271 bytes, checksum: 931fe4e9cb3a582ced25e4d4c19d1ffc (MD5) Previous issue date: 2017-03-31<br>There are countless researches related to the treatment of waste water because they contain large amounts of recalcitrant chemicals, such as p-Nitrophenol widely used in the in

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Gittsegrad, Anna. "Heterogeneous Structural Organization of Polystyrene Fibers Prepared by Electrospinning." Thèse, 2018. http://hdl.handle.net/1866/20040.

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Wang, Chia-Ying. "Spacially heterogeneous dynamics in supercooled O-terphenyl and polystyrene melts /." 1999. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Manz, Alyssa Sarah Jane Hennings. "Probing Heterogeneous Dynamics One Molecule at a Time: Polystyrene near the Glass Transition." Thesis, 2019. https://doi.org/10.7916/d8-ge1m-yv03.

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Polymeric systems near their glass transition are known to exhibit heterogeneous dynamics that evolve both over space and time, yet many of the underlying principles of these dynamics are still poorly understood. In this thesis, experimental single molecule studies aimed at uncovering the dynamics of polystyrene near its glass transition temperature are described. In a first approach, the influence of temperature on the timescales associated with dynamic heterogeneity – also referred to as exchange times – are identified by following the dynamics of a fluorescent perylene diimide probe embedde

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Thurau, Courtney T. "Physical aging and equilibrium dynamics of polystyrene and polycarbonate : the role of spatially heterogeneous dynamics /." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.

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Books on the topic "Heterogeneous Polystyrene"

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Alyssa Sarah Jane Hennings Manz. Probing Heterogeneous Dynamics One Molecule at a Time: Polystyrene near the Glass Transition. [publisher not identified], 2019.

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Book chapters on the topic "Heterogeneous Polystyrene"

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Davankov, Vadim, and Maria Tsyurupa. "Macroporous (Heterogeneous) Polystyrene Networks." In Hypercrosslinked Polymeric Networks and Adsorbing Materials. Elsevier, 2011. http://dx.doi.org/10.1016/s0166-526x(11)56003-9.

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Rubinstein, Michael, and Ralph H. Colby. "Thermodynamics of mixing." In Polymer Physics. Oxford University PressOxford, 2003. http://dx.doi.org/10.1093/oso/9780198520597.003.0004.

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Abstract Mixtures are systems consisting of two or more different chemical species. Binary mixtures consist of only two different species. An example of a binary mixture is a blend of polystyrene and polybutadiene. Mixtures with three components are called ternary. An example of a ternary mixture is a solution of polystyrene and polybutadiene in toluene. If the mixture is uniform and all components of the mixture are intermixed on a molecular scale, the mixture is called homogeneous. An example of a homogeneous mixture is a polymer solution in a good solvent. If the mixture consists of several

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T. Varkey, Jaya. "Synthesis and Catalytic Activity Studies of Silver Nanoparticles Stabilized in Polymeric Hydro Gel." In Silver Micro-Nanoparticles - Properties, Synthesis, Characterization, and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97824.

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Silver nanoparticles (AgNPs) are one of the most vital and fascinating nanomaterials among several metallic nanoparticles that are involved in biomedical applications. But their stabilization towards agglomeration is a serious concern. Synthesized silver nanoparticles can be dispersed in polymeric hydrogel for stabilization and can be efficiently used in heterogeneous catalysis. Polystyrene crosslinked with 1, 6-hexanediol diacrylate can be suitably functionalized for catalytic activities. The nature of the support has a profound influence on the reactivity of the polymeric resin. A flexible s

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Chen, Xiaozheng, and Alexander Feil. "Detection and classification of heterogeneous materials as well as small particles using NIR-spectroscopy by validation of algorithms." In OCM 2019 - 4th International Conference on Optical Characterization of Materials, March 13th – 14th, 2019, Karlsruhe, Germany : Conference Proceedings. KIT Scientific Publishing, 2019. http://dx.doi.org/10.58895/ksp/1000087509-7.

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Detection, characterization and sorting of plastics using Near-Infrared (NIR) Spectroscopy is State of the Art for plastic recycling processes. NIR active materials could be characterized according to the specific spectra of each material in the NIR spectrum. This works well for homogeneous materials, as they have known uniform spectra. For the detection of heterogeneous material and particles with smaller size than the resolution of NIR camera, the analysis becomes difficult due to mixed spectra. In this paper, the capturing of spectra information with a NIR camera takes place simultaneously

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Sheppard, R. C. "Introduction — a retrospective viewpoint." In Fmoc Solid Phase Peptide Synthesis. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780199637256.003.0005.

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The Chemical Society publication Annual Reports on the Progress of Chemistry for 1963 attempted to inform readers of all the highly significant advances in all the major fields of pure chemistry during that year. Fortunately, the section on peptide chemistry drew attention to a paper by R. B. Merrifield which had just been published in the Journal of the American Chemical Society: A novel approach to peptide synthesis has been the use of a chloromethylated polystyrene polymer as an insoluble but porous solid phase on which the coupling reactions are carried out. Attachment to the polymer const

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Conference papers on the topic "Heterogeneous Polystyrene"

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Zhao, Jun-Feng, and Han-Xiong Huang. "Migration of Nanoclay in PP/PS Blend and Effect of Its Localization on Cell Structure." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-68660.

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In this work, the migration of clay in polypropylene/polystyrene (PP/PS) blend and the effect of its final localization on cell structure of microcellular foamed blend nanocomposites were studied. To observe the clay migration, a multilayered blend, alternatively superposed PS and PP/clay films with a thickness of 0.2 mm, was subjected to low shear flow. Batch foaming was performed on obtained blend nanocomposites to study the influence of the nanoclay localization on cell structure by using CO2 as the foaming agent. When subjected to flow, most clay dispersed in PP phase migrated into PS grad

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Binkley, Michael, Andrew Ledbetter, Stefanie Shahan, and J. Mark Meacham. "Reduced Order Modeling and Experimental Investigation of Acoustic Particle Manipulation in Complex 3D Geometries." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66904.

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A reduced order computational model and imaging experiments are presented as a combined method to investigate migration and trapping of microscale particles within an ultrasonic droplet generator. Use of two-dimensional (2D) cross-sectional representations of the three-dimensional (3D) device enables observation of acoustic focusing phenomena that are otherwise visually inaccessible. Our approach establishes relationships between system operating parameters and particle retention due to acoustic radiation forces that arise during atomization of heterogeneous particle suspensions. The droplet g

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Burra, K. G., P. Singh, N. Déparrois, and A. K. Gupta. "Pyrolysis and CO2 Gasification of Composite Polymer Absorbent Waste for Syngas Production." In ASME 2019 Power Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/power2019-1884.

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Abstract Development of alternative carbonaceous sources for energy production is essential to alleviate the dependence on depleting fossil fuels which led to increasing atmospheric CO2 and thus global warming. While biomass utilization for energy and chemical production has been extensively studied in the literature, such studies on municipal solid wastes is difficult to interpret due to the heterogeneous nature of the waste. Understanding of the influence of individual components is necessary for comprehensive development of waste-to-energy pathway. One such waste that is complicated and has

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Reports on the topic "Heterogeneous Polystyrene"

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Afeworki, Mobae, and Jacob Schaefer. Mechanism of DNP-Enhanced Polarization Transfer Across the Interface of Polycarbonate/Polystyrene Heterogeneous Blends. Defense Technical Information Center, 1991. http://dx.doi.org/10.21236/ada242570.

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