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Journal articles on the topic 'Polystyrene'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Capricho, Jaworski C., Krishnamurthy Prasad, Nishar Hameed, Mostafa Nikzad, and Nisa Salim. "Upcycling Polystyrene." Polymers 14, no. 22 (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’

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2

Zhang, Shuang-Shuang, Shao-Kui Cao, Su Wang та ін. "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, № 111 (2015): 91140–46. http://dx.doi.org/10.1039/c5ra17073g.

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3

Zhang, Shuang-Shuang, Kun Cui, Jin Huang, Qiao-Ling Zhao, Shao-Kui Cao та 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, № 55 (2015): 44571–77. http://dx.doi.org/10.1039/c5ra06956d.

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4

Molodin, V. V., E. V. Vasenkov, and P. L. Timin. "Work Head for 3D Printing of Insulated Walls from One-Stage Polystyrene Concrete." Materials Science Forum 992 (May 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

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5

Qin, Yuman, and Shoubhik Das. "Photochemical Upcycling/Modification of Polystyrene-based Plastic Waste." CHIMIA 77, no. 12 (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 hold

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6

Dr., Nabil Abdullah N. Alkadasi, and Abdul Jabar Mohmmed Saleh Al-Eyani Dr. "Synthesis and Characteristics of Polystyrene Nanoparticles and Polystyrene Monolayers." Chemistry Research Journal 3, no. 3 (2018): 1–6. https://doi.org/10.5281/zenodo.13890510.

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In this paper, polystyrene nanoparticles and polystyrene monolayers were<strong> </strong>successfully synthesized. Polystyrene nanoparticles were carried out, at 80 °C temperature by soap-free emulsion polymerization. Polystyrene monolayers was synthesized from polystyrene nanoparticles. The product of polystyrene nanoparticles shows the best results. While the polystyrene monolayers<strong> </strong>shows enhancement product. The characterization of Polystyrene nanoparticles and polystyrene monolayers<strong> </strong>fabrications were done by SEM and TEM.

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7

Hoang Minh, Duc, and 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 den

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8

Donchak, Volodymyr, and Khrystyna Harhay. "Synthesis of fluorinated polystyrene." Chemistry & Chemical Technology 2, no. 1 (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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9

Elkin, Tatyana, Stacy Copp, Ryan Hamblin, Jennifer Martinez, Gabriel Montaño, and Reginaldo Rocha. "Synthesis of Terpyridine-Terminated Amphiphilic Block Copolymers and Their Self-Assembly into Metallo-Polymer Nanovesicles." Materials 12, no. 4 (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-coordinat

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10

Ingratta, Mark, Manoj Mathew, and 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, no. 3 (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 we

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11

Li, Jiang, Guoqing Wang, Chunhua Ding, Hong Jiang, and Peiqing Wang. "Synthesis and evaluation of polystyrene–polybutadiene–polystyrene–dodecafluoroheptyl methacrylate/polystyrene–polybutadiene–polystyrene hybrid antifouling coating." Journal of Colloid and Interface Science 434 (November 2014): 71–76. http://dx.doi.org/10.1016/j.jcis.2014.07.043.

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12

Nishimoto, Noriyuki. "Polystyrene." Kobunshi 37, no. 11 (1988): 812–13. http://dx.doi.org/10.1295/kobunshi.37.812.

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13

Tan, N. C. Beck, X. Liu, R. M. Briber, and D. G. Peiffer. "Immiscibility in polystyrene/sulfonated polystyrene blends." Polymer 36, no. 10 (1995): 1969–73. http://dx.doi.org/10.1016/0032-3861(95)91439-e.

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14

Hempenius, Mark A., Bea M. W. Langeveld-Voss, John A. E. H. van Haare, et al. "A Polystyrene−Oligothiophene−Polystyrene Triblock Copolymer." Journal of the American Chemical Society 120, no. 12 (1998): 2798–804. http://dx.doi.org/10.1021/ja972910v.

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15

Khoukhi, Maatouk, Shaimaa Abdelbaqi, and Ahmed Hassan. "Yearly Energy Performance Assessment of Employing Expanded Polystyrene with Variable Temperature and Moisture–Thermal Conductivity Relationship." Materials 12, no. 18 (2019): 3000. http://dx.doi.org/10.3390/ma12183000.

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This paper investigated the impact of the changes of thermal conductivity of an expanded polystyrene insulation layer embedded in a typical residential building on the cooling effect at different temperatures and moisture contents. The simulation was performed using expanded polystyrene (EPS) in the extremely hot conditions of Al-Ain (United Arab Emirates, UAE) at different levels of density, denoted as low density LD (12 kg/m3), high density HD (20 kg/m3), ultra-high density UHD (30 kg/m3), and super-high density SHD (35 kg/m3), and three moisture content levels (10%, 20%, and 30%), compared

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16

Sugumar, Pradeepkumar, D. Shaaz Moin Sha, Shreya Gowda, T. Vijay, and S. Keerthana. "An assessment on the potential of tenebrio molitor used for biodepolymerization of plastics and polystyrene: influencing factors, various feeding cases and gut microbiota." IOP Conference Series: Earth and Environmental Science 1074, no. 1 (2022): 012029. http://dx.doi.org/10.1088/1755-1315/1074/1/012029.

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Abstract The present study aims to analyze the potential of mealworms (Tenebrio Monitor) used for the biodepolymerization of waste papers, plastics and polystyrenes. The various influencing factors were analyzed such as: temperature, light intensity, moisture content and energy sources. The study was conducted with two types of feeding cases that the first was, the waste papers, plastics and polystyrene were fed with oats (Avena sativa) and the above wastes were added directly to the mealworms without any additional energy sources. A similar weight of 100gms of all three wastes has been added

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17

Juhl, Thomas Brokholm, Jesper de Claville Christiansen, and Erik Appel Jensen. "Mechanical testing of polystyrene/polystyrene laser welds." Polymer Testing 32, no. 3 (2013): 475–81. http://dx.doi.org/10.1016/j.polymertesting.2013.01.009.

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18

Pitt, W. G., D. J. Fabrizius-Homan, D. F. Mosher, and S. L. Cooper. "Vitronectin adsorption on polystyrene and oxidized polystyrene." Journal of Colloid and Interface Science 129, no. 1 (1989): 231–39. http://dx.doi.org/10.1016/0021-9797(89)90435-9.

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19

Wu, Wen-li, William E. Wallace, John H. van Zanten, Barry J. Bauer, Da-wei Liu, and Apollo Wong. "Diffusion of linear polystyrene into crosslinked polystyrene." Polymer 38, no. 11 (1997): 2583–94. http://dx.doi.org/10.1016/s0032-3861(97)85589-9.

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20

Chen, Y., S. D. Worley, T. S. Huang, et al. "Biocidal polystyrene beads. IV. Functionalized methylated polystyrene." Journal of Applied Polymer Science 92, no. 1 (2004): 368–72. http://dx.doi.org/10.1002/app.20038.

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21

Das, Mukta, Nazia Ahsan, Md A. B. H. Susan, et al. "A Facile Route to Catalytic Degradation of Polystyrene over Zeolite and Barium Carbonate." Asian Journal of Chemistry 36, no. 7 (2024): 1650–56. http://dx.doi.org/10.14233/ajchem.2024.31786.

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The present work investigated the catalytic degradation of polystyrene over zeolite and barium carbonate catalysts under heat reflux. The spectroscopic analysis confirmed the formation of alkyl benzene on degradation of polystyrene over both zeolite and BaCO3 catalysts. The thermal stability of the polystyrene products after degradation was found to be lower compared to the pure polystyrene. The crystallinity and morphology of the polystyrene products before and after degradation were also examined using X-ray diffraction and scanning electron microscopy. In addition, a plausible mechanism of

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22

YANUTINA, S. E. "Use of Foam Polystyrene Waste in the Conditions of a Reinforced Concrete Products Factory." Zhilishchnoe Stroitel'stvo, no. 10 (2020): 49–52. http://dx.doi.org/10.31659/0044-4472-2020-10-49-52.

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The relevance of research in the factory laboratory of JSC «198 KZHI», which is part of the HC GVSU «Center», is dictated by the need to dispose of foam polystyrene waste that occurs in large quantities when producing the precast concrete. In the production of three-layer external wall panels, polystyrene heatinsulating plates of the PPS 17-R-A brand are used as an effective insulation material. The secondary use of PPS 17-R-A for its intended purpose, as a heater, is not possible. The volume of foam polystyrene produced varies from 25 to 45 m3 per month. Utilization (disposal) of foam polysty

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23

Judovits, Lawrence H., R. C. Bopp, U. Gaur, and Bernhard Wunderlich. "The heat capacity of solid and liquid polystyrene, p-substituted polystyrenes, and crosslinked polystyrenes." Journal of Polymer Science Part B: Polymer Physics 24, no. 12 (1986): 2725–41. http://dx.doi.org/10.1002/polb.1986.090241209.

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24

Nowoświat, Artur, Artur Miros, and Paweł Krause. "Change in the Properties of Expanded Polystyrene Exposed to Solar Radiation in Real Aging Conditions." Sustainability 16, no. 17 (2024): 7320. http://dx.doi.org/10.3390/su16177320.

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Although polystyrene materials with added graphite are actively used for the thermal insulation of buildings, there are serious problems with the detachment and warping of these materials under the influence of solar radiation. However, no systematic studies have yet been carried out on the aging of polystyrene under exposure to solar radiation. The article presents research aimed at determining changes in the thermal conductivity, compressive stress, tensile strength, and water absorption of expanded polystyrene with the addition of graphite, exposed to direct solar radiation under in situ co

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25

Osemeahon, Sunday A., Usaku Reuben, and Ezekiel Emmanuel. "Development of adhesive from polystyrene waste." BIOMED natural and applied science 02, no. 01 (2022): 13–24. http://dx.doi.org/10.53858/bnas02011324.

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Background: This study aimed to develop adhesive from waste polystyrene, which has the capacity to both reduce environmental pollution and create wealth from waste. Methods: Polystyrene waste was obtained from waste heap “bola” around Jimeta metropolis, Yola, Adamawa State, Nigeria. The polystyrene waste was washed and dried. The washed waste was used to formulate adhesive using various solvents such as toluene, gasoline, blend of gasoline and toluene, and blend of gasoline and acetone. The formulated adhesives were characterized by study some physical properties of the formulated adhesive, su

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26

Alahmad, Waed. "Sunlight Photodegradable Polystyrene-TiO2/SiO2 Composite." Chemistry & Chemical Technology 13, no. 2 (2019): 190–97. http://dx.doi.org/10.23939/chcht13.02.190.

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27

TOMOTSU, Norio, Masahiko KURAMOTO, and Nobuhide ISHIHARA. "Syndiotactic Polystyrene." KOBUNSHI RONBUNSHU 75, no. 6 (2018): 527–42. http://dx.doi.org/10.1295/koron.2018-0033.

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28

TSUKAHARA, Yasuhisa. "Polystyrene Macromonomers." Kobunshi 46, no. 10 (1997): 738–40. http://dx.doi.org/10.1295/kobunshi.46.738.

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29

Tonjes, D. J., and R. L. Swanson. "Polystyrene Overestimated." Science 328, no. 5974 (2010): 45–46. http://dx.doi.org/10.1126/science.328.5974.45-c.

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30

Seemann, Ralf, Karin Jacobs, and Ralf Blossey. "Polystyrene nanodroplets*." Journal of Physics: Condensed Matter 13, no. 21 (2001): 4915–23. http://dx.doi.org/10.1088/0953-8984/13/21/318.

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31

Lagowski, J. B., I. G. Csizmadia, and G. J. Vancso. "Polystyrene models." Journal of Molecular Structure: THEOCHEM 258, no. 3-4 (1992): 341–60. http://dx.doi.org/10.1016/0166-1280(92)85075-v.

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32

Kobayashi, Mikihiko, Mitsuru Egashira, and Takeshi Konno. "Fabrication of Polystyrene Fibers Containing Nanoparticles of TiO₂ and ZnO by Electrospinning." Materials Science Forum 561-565 (October 2007): 663–66. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.663.

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Polystyrene fibers were fabricated by electrospinning. Polystyrene resin was dissolved in chloroform, N,N-dimethylformamide, or their mixtures. In experiments with 10 wt-% solutions of polystyrene in various solvents, a 1:1 solvent mixture was found to be optimal. In the 1:1 solvent, an increase in polystyrene concentration resulted in a decrease in the number of beads on the electrospun fibers and an increase in their diameter. A 20 wt% solution of polystyrene gave fibers with a diameter of about 1.8 $m with almost no beads. Polystyrene fibers containing nanoparticles were prepared by electro

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33

Russ, Thomas, Rüdiger Brenn, and Mark Geoghegan. "Equilibrium Swelling of Polystyrene Networks by Linear Polystyrene." Macromolecules 36, no. 1 (2003): 127–41. http://dx.doi.org/10.1021/ma0211885.

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34

Tsukahara, Yasuhisa, Jun Inoue, Yoshinori Ohta, and Shinzo Kohjiya. "Miscibility of regular multibranched polystyrene with linear polystyrene." Polymer 35, no. 26 (1994): 5785–89. http://dx.doi.org/10.1016/s0032-3861(05)80058-8.

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35

Brunacci, A., J. M. G. Cowie, R. Ferguson, J. L. Gómez Ribelles, and A. Vidaurre Garayo. "Structural Relaxation in Polystyrene and Some Polystyrene Derivatives." Macromolecules 29, no. 24 (1996): 7976–88. http://dx.doi.org/10.1021/ma960336m.

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36

Chipara, D. M., and A. Perez. "Self-healing of polystyrene block–polyisoprene block–polystyrene." Plastics, Rubber and Composites 43, no. 9 (2014): 279–83. http://dx.doi.org/10.1179/1743289814y.0000000094.

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37

Kim, Chung, Seung Park, Sung Kim, Su Kwon, Jun Baek, and Bun Lee. "Polystyrene Chain Growth from Di-End-Functional Polyolefins for Polystyrene-Polyolefin-Polystyrene Block Copolymers." Polymers 9, no. 12 (2017): 481. http://dx.doi.org/10.3390/polym9100481.

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38

Kausar, Ayesha. "Synthesis and properties of novel polystyrene/polyurea and functional graphene-based nanocomposite foams." Journal of Cellular Plastics 53, no. 3 (2016): 305–18. http://dx.doi.org/10.1177/0021955x16652104.

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A simple route has been adopted for the fabrication of polyurea using polycondensation of 4,4'-diphenylmethane diisocyanate and 1,4-phenylene diamine. Amalgamation of polystyrene, polyurea and functional graphene (F–G) yielded a series of nanocomposite foams. The morphological, electrical, mechanical, thermal, and flammability properties of materials were investigated and found to be dependent upon the intrinsic properties of graphene-based materials and their state of dispersion in matrix. Field emission scanning electron microscopy revealed a strong interaction between polystyrene/polyurea a

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39

Mergen, Ömer Bahadır, Ertan Arda, and Gülşen Akın Evingür. "Electrical, optical, and mechanical percolations of multi-walled carbon nanotube and carbon mesoporous-doped polystyrene composites." Journal of Composite Materials 54, no. 1 (2019): 31–44. http://dx.doi.org/10.1177/0021998319859053.

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In this study, we have investigated and compared electrical, optical, and mechanical properties of polystyrene thin films with added multi-walled carbon nanotube and carbon mesoporous. Surface conductivity ( σ), scattered light intensity ( I sc), and all the mechanical parameters of these composites have increased with increasing the content of carbon filler (multi-walled carbon nanotube or carbon mesoporous) in the polystyrene composites. This behavior in electrical, mechanical, and optical properties of the polystyrene/carbon fiber composites has been explained by classical and site percolat

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40

Cole, Janet C., and Diane E. Dunn. "Expanded Polystyrene as a Substitute for Perlite in Rooting Substrate." Journal of Environmental Horticulture 20, no. 1 (2002): 7–10. http://dx.doi.org/10.24266/0738-2898-20.1.7.

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Abstract Stem cuttings of rose-of-sharon (Hibiscus syriacus L. ‘Jeanne d'Arc’), barberry (Berberis thunbergii DC. ‘Crimson Pygmy’), juniper (Juniperus horizontalis Moench. ‘Plumosa Compacta’), and arborvitae (Thuja occidentalis L. ‘Woodwardii’) were rooted in substrates consisting of 0%, 25%, 50%, 75%, or 100% (by vol) perlite or expanded polystyrene beads with peat. Percentage of rose-of-sharon cuttings rooted and root ratings were lower with polystyrene than with perlite. Statistically, more barberry cuttings rooted with polystyrene (78.8%) than with perlite (78.3%), but the difference in ro

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41

Xue, Yijiao, Mingxia Shen, Fengling Lu, et al. "Effects of heterionic montmorillonites on flame resistances of polystyrene nanocomposites and the flame retardant mechanism." Journal of Composite Materials 52, no. 10 (2017): 1295–303. http://dx.doi.org/10.1177/0021998317724861.

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To improve the flame resistance of polystyrene, three kinds of organophilic heterionic montmorillonites (Na-montmorillonite, Ca-montmorillonite, and Fe-montmorillonite) reinforced polystyrene nanocomposites were prepared by melt dispersion method. The structure and composition of the organo montmorillonites were characterized by using X-ray diffraction and Fourier-transform infrared analysis. The adhesion between organo montmorillonites and polystyrene was investigated by scanning electron microscopy. The flame resistance and thermal stability of the polystyrene/organo montmorillonites were ev

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42

Zhai, Bao Gai, and Yuan Ming Huang. "Preparation and Photoluminescent Properties of Polystyrene Encapsulated SrAl₂O₄:Eu²⁺,Dy³⁺ Nanocrystals." Key Engineering Materials 538 (January 2013): 197–200. http://dx.doi.org/10.4028/www.scientific.net/kem.538.197.

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Polystyrene encapsulated phosphors SrAl2O4:Eu2+,Dy3+ were prepared by dispersing the phosphors into the matrix of polystyrene. The phase, morphology and optical properties of the polystyrene encapsulated phosphors were characterized with X-ray diffractometry, scanning electron microscopy and photoluminescence (PL) spectroscopy, respectively. It has been observed that both the PL spectrum and the luminescent color of the polystyrene encapsulated phosphors can be dramatically modified although the phosphorescence of the polystyrene encapsulated phosphors is not affected. Tunable photoluminescent

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43

Momanyi, Job, Michael Herzog, and Peter Muchiri. "Analysis of Thermomechanical Properties of Selected Class of Recycled Thermoplastic Materials Based on Their Applications." Recycling 4, no. 3 (2019): 33. http://dx.doi.org/10.3390/recycling4030033.

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Polypropylene and polystyrene are petroleum-based thermoplastics which are commonly used and disposed of in the environment after their service life, leading to environmental degradation. There is a need to recycle polypropylene and polystyrene, but the effect of recycling on thermo-mechanical properties is not well understood. This study aims to determine thermo-mechanical properties of the recycled polypropylene and recycled polystyrene and compare them with corresponding virgin polypropylene and newly produced polystyrene (general purpose polystyrene 1540 and high impact polystyrene 7240).

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44

Goyal, Tanish, Ghanshyam Das Gupta, and Sant Kumar Verma. "Development and validation of simple UV-spectrophotometric method for the estimation of polystyrene plastic/microplastic." Pharmaspire 15, no. 01 (2023): 44–47. http://dx.doi.org/10.56933/pharmaspire.2023.15107.

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Polystyrene is a widely used plastic for household purposes or in industrial packaging. However, polystyrene can be categorized as a potent carcinogenic due to its monomer unit. Polystyrene comprises several styrene units that easily leach as styrene microplastics on contact with hot or fatty material. A ultraviolet (UV) spectrophotometer method has been developed for the determination of polystyrene. Polystyrene in an aqueous solution with tetrahydrofuran was estimated at a wavelength ranging from 200 to 300 nm. The λmax of polystyrene was found to be 261.5 nm. The method was linear for the p

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45

Wang, Jia Jia, Hui Huang, Ting Li, and Shi Ying Tao. "Ultrasonic-Assisted Dissolution of Polystyrene in Decahydronaphthalene for the Preparation of Poly(Cyclohexylethylene)." Applied Mechanics and Materials 651-653 (September 2014): 157–60. http://dx.doi.org/10.4028/www.scientific.net/amm.651-653.157.

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Dissolution process of polystyrene in decahydronaphthalene solution was conducted and compared under different conditions. The effects of dissolution time and temperature on the dissolution ratio of polystyrene were performed with the assistance of ultrasonic and mechanical agitation, respectively. The dissolution ratio of polystyrene increased with the increment of dissolution time and dissolution temperature, polystyrene dissolved faster under ultrasonic-assisted process. The polystyrene dissolution kinetic model was developed and used to calculate the dissolution rate constant. The kinetic

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46

Yousif, Emad, Dina Ahmed, Gamal El-Hiti, et al. "Fabrication of Novel Ball-Like Polystyrene Films Containing Schiff Base Microspheres as Photostabilizers." Polymers 10, no. 11 (2018): 1185. http://dx.doi.org/10.3390/polym10111185.

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Polystyrene films containing a low concentration of three highly aromatic Schiff bases were prepared using the casting method. The polystyrene films were irradiated with ultraviolet light (300 h). The polystyrene infrared spectra, weight loss, molecular weight reduction and the surface morphology were examined upon irradiation. The Schiff bases acted as photostabilizers and reduced the photodegradation of polystyrene films to a significant level in comparison to the blank film. The images recorded of the surface of the miscible polystyrene/Schiff base blends showed novel ball-like microspheres

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47

Haryono, Agus, and Sri Budi Harmami. "Sulfonation of Waste High Impact Polystyrene from Food Packaging as a Polymeric Flocculant." Advanced Materials Research 486 (March 2012): 426–31. http://dx.doi.org/10.4028/www.scientific.net/amr.486.426.

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Sulfonation of waste high impact polystyrene from commercial food packaging was studied in this work. The obtained sulfonated polystyrene was characterized by using Fourier Transformed Infrared spectroscopy. Effect of the reaction time and temperature on the degree of sulfonation was observed. Waste high impact polystyrene resin from food packaging showed degree of sulfonation at 72.2% level. This degree of sulfonation was lower than the same reaction on pure polystyrene and pure high impact polystyrene, which showed degree of sulfonation at 97.7% and 85.2% level, respectively. Simulation of f

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48

Namba, S., Y. Tsukahara, K. Kaeriyama, K. Okamoto, and M. Takahashi. "Bulk properties of multibranched polystyrenes from polystyrene macromonomers: rheological behavior I." Polymer 41, no. 14 (2000): 5165–71. http://dx.doi.org/10.1016/s0032-3861(99)00744-2.

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49

Dubovitskaya, Natalia, Zamira Mukhamedbaeva, and Abdugafur Mukhamedbaev. "Production technology and properties of polystyrene concrete on recycled polystyrene." E3S Web of Conferences 401 (2023): 05070. http://dx.doi.org/10.1051/e3sconf/202340105070.

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The article deals with the production of polystyrene concrete from recycled polystyrene crushed in a rotary crusher waste from the production of foam packaging. The resulting polystyrene concrete can be attributed to thermal insulation, used for insulation of load-bearing structures of buildings, as well as to structural and thermal insulation, used as a bearing layer of the outer walls of low-rise buildings. The dependence of the thermal conductivity of the sample on the density and strength of polystyrene concrete has been established, and the resistance to shock loads depends not only on th

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Kim, Dong Hyun, Seung Soo Park, Su Hyun Park, Jong Yeob Jeon, Hyo Bo Kim, and Bun Yeoul Lee. "Preparation of polystyrene–polyolefin multiblock copolymers by sequential coordination and anionic polymerization." RSC Advances 7, no. 10 (2017): 5948–56. http://dx.doi.org/10.1039/c6ra25848d.

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