Academic literature on the topic 'Particle polymerization'

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Journal articles on the topic "Particle polymerization"

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Bilal, Salma, Salma Gul, and Anwar-ul-Haq Ali Shah. "Calculation of particle size distribution of polyaniline salts using imagej." Journal of Scientific and Innovative Research 4, no. 1 (2015): 17–21. http://dx.doi.org/10.31254/jsir.2015.4105.

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The detailed analysis of particle size distribution is desirable in several technical fields that ma-nipulate granular/particulate materials including size reduction. This article describes the mani-pulation of scanning electron micrographs (SEM) of polyaniline (PANI) salts using ImageJ soft-ware. The PANI salts were prepared by two servable methods i.e. emulsion polymerizations and inverse emulsion polymerizations. 1,2 The effects of these synthesis routs on the particles shape and size distributions of the PANI salts were evaluated. Slight differences in the particle shapes were observed for
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Šňupárek, Jaromír, Pavel Bradna, Libuše Mrkvičková, František Lednický, and Otakar Quadrat. "Effect of Coagulative Mechanism of Particle Growth on the Structural Heterogeneity of Ethyl Acrylate-Methacrylic Acid Copolymer Latex Particles." Collection of Czechoslovak Chemical Communications 58, no. 10 (1993): 2451–57. http://dx.doi.org/10.1135/cccc19932451.

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Latex particles of ethyl acrylate-methacrylic acid copolymers prepared by semicontinuous emulsion polymerization with a monomer emulsion feed were found to disintegrate into smaller subparticles on alkalization. The phenomenon observed by light scattering and scanning electron microscopy is explained in terms of heterogeneous structure of latex particles which are agglomerates of small particles formed by coagulation during polymerization. The influence of particle size and polymerization route on particle heterogenity is discussed.
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Zhang, Wenyang, Zhengwen Wu, Hanjun Mao, et al. "Particle morphology, structure and properties of nascent ultra-high molecular weight polyethylene." Royal Society Open Science 7, no. 8 (2020): 200663. http://dx.doi.org/10.1098/rsos.200663.

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The effects of particle morphology on the structure and swelling/dissolution and rheological properties of nascent ultra-high molecular weight polyethylene (UHMWPE) in liquid paraffin (LP) were elaborately explored in this article. Nascent UHMWPE with different particle morphologies was prepared via pre-polymerization technique and direct polymerization. The melting temperature and crystallinity of UHMWPE resins with different particle morphologies were compared, and a schematic diagram was proposed to illustrate the mechanism of UHMWPE particle growth synthesized by pre-polymerization method
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Park, Jae-Jung, Yongsoo Kim, Chanmin Lee, et al. "Morphological Analysis of PSMA/PEI Core–Shell Nanoparticles Synthesized by Soap-Free Emulsion Polymerization." Nanomaterials 11, no. 8 (2021): 1958. http://dx.doi.org/10.3390/nano11081958.

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Emulsion polymerization presents the disadvantage that the physical properties of polymer particles are altered by surfactant adsorption. Therefore, in the soap-free emulsion polymerization method, a hydrophilic initiator is utilized while inducing repulsion among particles on the polymer particle surface, resulting in stable polymer particle production. In this study, we developed a methodology wherein spherical and uniform poly(styrene-co-maleic anhydride) (PSMA)/polyethyleneimine (PEI) core–shell nanoparticles were prepared. Further, their morphology was analyzed. During PSMA polymerization
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Yogo, Toshinobu, Tomoyuki Nakamura, Ko-ichi Kikuta, Wataru Sakamoto та Shin-ichi Hirano. "Synthesis of α–Fe2O3 particle/oligomer hybrid material". Journal of Materials Research 11, № 2 (1996): 475–82. http://dx.doi.org/10.1557/jmr.1996.0057.

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A nanocrystalline α–Fe2O3 particle/oligomer hybrid can be synthesized by polymerization of iron (III) 3-allylacetylacetonate (IAA) followed by in situ hydrolysis. The polymerization of IAA was dependent upon the polymerization temperature and solvent. GPC measurement showed that the polymerization degree of the IAA oligomer ranged from ∼3 to ∼6. The magnetic particle/oligomer hybrid was synthesized by hydrolysis of the IAA oligomer under a neutral or alkaline condition. Crystalline particles from 10 to 40 nm were finely dispersed in the oligomeric matrix, depending upon the hydrolysis conditio
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Capek, I. "On the inverse miniemulsion copolymerization and terpolymerization of acrylamide, N, N′-methylenebis(acrylamide) and methacrylic acid." Open Chemistry 1, no. 3 (2003): 291–304. http://dx.doi.org/10.2478/bf02476230.

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AbstractThe kinetics of free-radical copolymerization and terpolymerization of acrylamide (AAm), N, N′-methylenebis(acrylamide) (MBA) and methacrylic acid (MA) in the inverse water/monomer/cyclohexane/Tween 85 miniemulsion was investigated. Polymerizable sterically-stable miniemulsions were formulated in cyclohexane as a continuous medium. Polymerizations are very fast and reach the final conversion within several minutes. The dependence of the polymerization rate vs. conversion is described by a curve with two nonstationary rate intervals. The maximum rate of polymerization slightly increases
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GRITSKOVA, I. A., E. V. ANOHIN, A. A. EZHOVA, et al. "Polymer-monomer particles formation and particle size distribution during heterophase polymerization in the presence of water-insoluble organosilicon surfactant." Plasticheskie massy, no. 3-4 (May 23, 2022): 16–20. http://dx.doi.org/10.35164/0554-2901-2022-3-4-16-20.

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In this work mechanism of polymer particles formation during styrene heterophase polymerization in the presence of waterinsoluble organosilicon surfactant was investigated. Dependency between monomer conversion rate from early stages of polymerization and particle diameters change, molecular weight, particle size and molecular weight distribution was analyzed. The effect of the gel effect and Ostwald maturation on particle diameter and polymer molecular weight was evaluated.
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Peng, Hao, Huan Wei, Jun Xiang, and Haojun Fun. "Synthesis and Characterization if Large Particle Size Self-Matting Core-shell Acrylic Resin." Journal of the American Leather Chemists Association 117, no. 9 (2022): 379–90. http://dx.doi.org/10.34314/jalca.v117i9.6168.

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Acrylic resin plays an important role in leather-making, such as finishing agent, filler and tanning agent. Acrylic resin can be easily fabricated via conventional emulsion polymerization, but how to prepare large particle size with self-matting effect has always been a challenge. In this paper, a continuous three-stage polymerization method: seed-polymerization coupled core-polymerization and shell polymerization was employed to prepare large particle size self-matting acrylic resin emulsion. Simultaneously, the effect of feeding methods on particles size and the effects of latex particle siz
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Li, Joshua Qing Song, Yan Qiu Wang, and Hai Wang. "Preparation and Characterization of Silica/Polymer Hybrid Submicron Particles via a Semi-Continuous Soap-Free Emulsion Polymerization." Advanced Materials Research 1120-1121 (July 2015): 225–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1120-1121.225.

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Submicron hybrid particles were prepared by direct polymerization of three monomers of styrene, methyl methacrylate (MMA), and vinyl acetate (VAC) onto the hydrophilic surface of 230 nm silica submicron particles without any coupling agent in a semi-continuous emulsifier-free emulsion polymerization at a monomer starved condition. The polymerization was initiated by potassium persulfate with constant monomer feed at 0.01, 0.02, or 0.04 mL/min, after adding 230 nm silica seed particles. The particle growth was investigated with a laser particle size analyzer and SEM, and the particle surfaces b
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Qiu, Min, Liang Xiang, Minjing Shang, and Yuanhai Su. "Continuous Differential Microemulsion Polymerization to Prepare Nanosized Polymer Latices in Microreactors." Advances in Polymer Technology 2021 (November 24, 2021): 1–12. http://dx.doi.org/10.1155/2021/2966920.

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Microreactors are a promising platform for continuous synthesis of polymer latices when combined with emulsion polymerization. However, this application has long been haunted by fouling and clogging problems. In this work, we proposed the strategy of conducting differential microemulsion polymerization in microreactors within a biphasic slug flow and achieved rapid and stable preparation of nanosized PMMA latices (polymeric content as high as 15.7% with average particle size smaller than 20 nm). We started by exploring the temperature thresholds with thermal and redox initiation, the effect of
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Dissertations / Theses on the topic "Particle polymerization"

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Leswin, Joost Sieger Kaspar. "Particle Formation in RAFT-mediated Emulsion Polymerization." Thesis, The University of Sydney, 2007. http://hdl.handle.net/2123/2176.

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Particle formation in RAFT-mediated emulsion polymerization has been studied using reaction calorimetry. By measuring the heat flow during controlled feed ab-initio emulsion polymerization in the presence of amphipathic RAFT agents, particle formation by self-assembly of these species could be observed. Two different monomer systems, i.e. styrene and n-butyl acrylate, and various degrees of hydrophobicity of the initial macro-RAFT agents have been studied and compared. The different macro-RAFT agents were synthesized by first forming a hydrophilic block of poly(acrylic acid) that would later o
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Leswin, Joost Sieger Kaspar. "Particle Formation in RAFT-mediated Emulsion Polymerization." University of Sydney, 2007. http://hdl.handle.net/2123/2176.

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Doctor of Philosophy(PhD)<br>Particle formation in RAFT-mediated emulsion polymerization has been studied using reaction calorimetry. By measuring the heat flow during controlled feed ab-initio emulsion polymerization in the presence of amphipathic RAFT agents, particle formation by self-assembly of these species could be observed. Two different monomer systems, i.e. styrene and n-butyl acrylate, and various degrees of hydrophobicity of the initial macro-RAFT agents have been studied and compared. The different macro-RAFT agents were synthesized by first forming a hydrophilic block of poly(acr
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Gilmore, Cheryl Matthews. "Particle nucleation and growth in a polymerically stabilized emulsion polymerization system." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/11707.

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Ramanathan, L. S. "Studies on particle forming polycondensation and ring opening polymerization process." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2270.

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Brunier, Barthélémy. "Modeling of Pickering Emulsion Polymerization." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10320/document.

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L’objectif du présent projet est de développer une méthodologie pour la modélisation fondamentale de procédés de polymérisation en émulsion sans tensioactif stabilisés par des particules inorganiques, dénommées "polymérisation en émulsion Pickering". La modélisation des systèmes de polymérisation en émulsion nécessite la modélisation de la distribution de taille des particules (PSD), qui est une propriété importante d'utilisation finale du latex. Cette PSD comprend des sous-modèles dédiés à la nucléation des particules, le transfert de masse entre les différentes phases (monomère, radicaux, st
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Roßner, Christian. "High-Precision Particle Arrangement in Gold‒Polymer-Nanocomposites using RAFT Polymerization." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7CAD-0.

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Rodrigues, Jeffrey Collin. "Comparison of shear stability of mini and macroemulsion latexes with respect to particle size and number distribution." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/9136.

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Downey, Jeffrey S. "Precipitation polymerization of divinylbenzene to monodisperse microspheres : an investigation of the particle formation mechanism /." *McMaster only, 2000.

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Godin, Alexandra [Verfasser]. "Particle formation and multiphase morphologies in catalytic aqueous ethylene polymerization / Alexandra Godin, geb. Tchernook." Konstanz : Bibliothek der Universität Konstanz, 2017. http://d-nb.info/113819610X/34.

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Virtanen, Otto L. J. [Verfasser], Walter [Akademischer Betreuer] Richtering, and Sebastian [Akademischer Betreuer] Seiffert. "Insight into precipitation polymerization of N-isopropylacrylamide : reaction mechanism, particle formation and particle structure / Otto L. J. Virtanen ; Walter Richtering, Sebastian Seiffert." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1130792501/34.

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Books on the topic "Particle polymerization"

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Masayoshi, Okubo, ed. Polymer particles. Springer, 2005.

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Okubo, Masayoshi. Polymer particles. Springer, 2011.

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Zirkzee, Hendricus Franciscus. A novel approcah to the encapsulation of silica particles: Mechanisims and kinetics. Technische Universiteit Eindhoven, 1997.

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Piotr, Garstecki, ed. Microfluidic reactors for polymer particles. Wiley, 2011.

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T, Bhatt Ramakrishna, and United States. National Aeronautics and Space Administration., eds. The effect of polymer char on nitridation kinetics of silicon. National Aeronautics and Space Administration, 1994.

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T, Bhatt Ramakrishna, and United States. National Aeronautics and Space Administration., eds. The effect of polymer char on nitridation kinetics of silicon. National Aeronautics and Space Administration, 1994.

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Herk, Alex M. van, and Katharina Landfester. Hybrid Latex Particles: Preparation with emulsion Polymerization. Springer, 2012.

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Herk, Alex M. van, and Katharina Landfester. Hybrid Latex Particles: Preparation with emulsion Polymerization. Springer London, Limited, 2010.

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Kumacheva, Eugenia, and Piotr Garstecki. Microfluidic Reactors for Polymer Particles. Wiley & Sons, Incorporated, John, 2011.

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Kumacheva, Eugenia, and Piotr Garstecki. Microfluidic Reactors for Polymer Particles. Wiley & Sons, Incorporated, John, 2011.

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Book chapters on the topic "Particle polymerization"

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Seki, Shu, Tsuneaki Sakurai, Masaaki Omichi, Akinori Saeki, and Daisuke Sakamaki. "Single-Particle Triggered Polymerization." In SpringerBriefs in Molecular Science. Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55684-8_7.

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Zeaiter, Joseph, and José A. Romagnoli. "Optimization of the Particle Size in Emulsion Polymerization." In Monitoring Polymerization Reactions. John Wiley & Sons, 2014. http://dx.doi.org/10.1002/9781118733813.ch18.

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Herk, A. M. "Particle Growth in Emulsion Polymerization." In Polymeric Dispersions: Principles and Applications. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5512-0_2.

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Venkatesan, J., and Cesar A. Silebi. "Particle Size Characterization During Emulsion Polymerization." In ACS Symposium Series. American Chemical Society, 1998. http://dx.doi.org/10.1021/bk-1998-0693.ch018.

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Takahashi, T., H. Fukazawa, and H. Kawaguchi. "Particle-forming precipitation polymerization under unusual conditions." In Aqueous Polymer Dispersions. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b12162.

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Takahashi, T., H. Fukazawa, and H. Kawaguchi. "Particle-forming precipitation polymerization under unusual conditions." In Aqueous Polymer Dispersions. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-36474-0_33.

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Van Gilder, R. L., and M. A. Langhorst. "Application of High-Speed, Integrated, Computerized, Hydrodynamic Chromatography for Monitoring Particle Growth During Latex Polymerization." In Particle Size Distribution. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0332.ch019.

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Tauer, K., and I. Kühn. "Particle Nucleation at the Beginning of Emulsion Polymerization." In Polymeric Dispersions: Principles and Applications. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5512-0_4.

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Wang, Lei, Junting Li, Yang Zheng, Yucheng Huang, Yali Qiao, and Brian C. Benicewicz. "RAFT Polymerization on Particle Surfaces: Same Goal, Different Strategies." In ACS Symposium Series. American Chemical Society, 2015. http://dx.doi.org/10.1021/bk-2015-1188.ch013.

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Napper, D. H., and R. G. Gilbert. "Emulsion Polymerization: The Mechanisms of Latex Particle Formation and Growth." In An Introduction to Polymer Colloids. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0521-4_6.

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Conference papers on the topic "Particle polymerization"

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Demadis, Konstantinos D., Georgia Skordalou, and Ioannis Aristodemou. "Distinct Mechanisms of Silica Scale Formation: Silicic Acid Polycondensation and Silica Particle Growth." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14290.

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Abstract Silica scales are perhaps the most recalcitrant deposits in the water treatment industry. Silica scale control can be achieved either by silica removal or by chemical inhibitors. Our goal is the discovery, design and application of organic additives that have some effect on silica polycondensation. Most silica control strategies assume that silica behaves like any other mineral scale. However, silica is a profoundly different issue because of its distinctly different phisicochemical features from other scales. So, silica scale control presents a rather “unorthodox” task because the ac
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Krishna, Krishangi, Jieliyue Sun, and Kimani C. Toussaint. "Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloids." In Novel Optical Materials and Applications. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/noma.2024.noth3b.2.

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We employ femtosecond-laser pulses for a two-step microfabrication process: optical tweezing of microparticles to target positions, followed by immediate particle immobilization by two-photon polymerization. The challenges and opportunities of this platform are discussed.
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Gill, J. S. "Silica Scale Control." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98226.

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Abstract Silica is becoming the critical limiting factor in the reuse of water. Silica deposit is caused as a result of its polymerization, coprecipitation with other minerals, precipitation with other multivalent ions, and biological activity in the water. Several of these processes may take place concurrently, making it difficult to predict equilibrium solubility. The solubility of amorphous silica is also dependent on many other factors such as, pH, temperature, particle size, particle hydration, and the presence of other ions, such as iron, aluminum, etc.. A hard silica scale is formed whe
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Wang, Yang, and Francis J. Doyle. "Reachability analysis of particle size distribution in semibatch emulsion polymerization." In 2003 European Control Conference (ECC). IEEE, 2003. http://dx.doi.org/10.23919/ecc.2003.7085066.

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Lipin, Alexander G., and Andrey A. Lipin. "Modeling of particulate materials coating with polyacrylamide shells." In INTERNATIONAL SCIENTIFIC-TECHNICAL SYMPOSIUM (ISTS) «IMPROVING ENERGY AND RESOURCE-EFFICIENT AND ENVIRONMENTAL SAFETY OF PROCESSES AND DEVICES IN CHEMICAL AND RELATED INDUSTRIES». The Kosygin State University of Russia, 2021. http://dx.doi.org/10.37816/eeste-2021-1-174-177.

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Coating of particulate material with thin polymeric shell, which is obtained by polymerization on the particle surface, was considered. A mathematical model of this process is presented. The model simulates heat and mass transfer, polymerization kinetics and evaporation surface change in coating process.
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Liotta, V., C. Georgakis, and M. S. El-Aasser. "Real-time estimation and control of particle size in semi-batch emulsion polymerization." In Proceedings of 16th American CONTROL Conference. IEEE, 1997. http://dx.doi.org/10.1109/acc.1997.609717.

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Guo, Qing, Haiyan Liu, Juan Chen, and Dazi Li. "Optimal grade transition of continuous polymerization process based on multiobjective particle swarm optimization." In 2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE). IEEE, 2015. http://dx.doi.org/10.1109/sice.2015.7285317.

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Immanuel, C. D., F. J. Doyle, and C. F. Cordeiro. "Experimental studies of the sensitivity of particle size distribution in emulsion co-polymerization." In Proceedings of American Control Conference. IEEE, 2001. http://dx.doi.org/10.1109/acc.2001.945568.

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Immanuel, C. D., and F. J. Doyle. "Tracking of a reference particle size distribution trajectory in semi-batch emulsion polymerization." In Proceedings of 2002 American Control Conference. IEEE, 2002. http://dx.doi.org/10.1109/acc.2002.1023150.

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Gonsalves, K. E., G. Carlson, X. Chen, J. Kumar, R. Perez, and M. Jose Yacaman. "Surface Functionalized Nanostructured Gold/Polymer Composites." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/otfa.1995.md.13.

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Nanometric gold particles were synthesized by a liquid/liquid phase-transfer reaction. Composites of these particles were prepared by free-radical polymerization of solutions of the particles in methyl methacrylate monomer. Concentrations of 1.0, 0.7, and 0.3 mg/mlwere prepared, with no noticeable agglomeration of particles during processing. PMMA/gold films showed a linear absorption peak at 530 nm, which is characteristic of nanosized gold. High-resolution electron microscopy measurement showed that the particle diameters varied from 5 to 11 nm. Degenerate four-wave mixing experiments on 10-
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Reports on the topic "Particle polymerization"

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Van Pelt, Christopher. Investigation into Redox-Active Copolymers for use in Polymerization Induced Self-Assembled Particles. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/1923624.

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Saiwan, Chintana. Mesostructural ultra thin silica film formation through admicellar technique. Chulalongkorn University, 2003. https://doi.org/10.58837/chula.res.2003.78.

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Thin silica film formation from adsolubilization of inorganic silica precursors, letra-n-butoxysilane (TBOS) and tetraethyl orthosilicate (TBOS) in admicellar polymerization were studies. Cetyltrimethylammonium bromide (CTAB) at 700 uM and octyl phenol ethoxylate or Triton X-100 at 200 uM were used as surfactant templates for adsolubilizates TBOS and TBOS respectively. For the TBOS/CTAB system, the atomic force microscopy (AFM) topographic images showed fibers, hemispheres and flat layers existing along with increase of surface coverge on the mica surface as the TBOS feed concentration was inc
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