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Journal articles on the topic 'Porous polymeric structure'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Abobakirova, Zebuniso, Shodiljon Umarov, and Rasuljon Raximov. "Enclosing structures of a porous structure with polymeric reagents." E3S Web of Conferences 452 (2023): 06027. http://dx.doi.org/10.1051/e3sconf/202345206027.

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This article is devoted to the use of the polymer K-9 reagent in porous claydite-ash concrete and the design of its optimal composition according to the general design method of the optimal composition of the general theory of artificial building conglomerates (ISC). The data of experiments confirming the positive effect of the polymer reagent on increasing the durability, improving the moisture and heat engineering modes of porous concrete are presented.

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Álvarez-Suarez, Alan Saúl, Eduardo Alberto López-Maldonado, Olivia A. Graeve, et al. "Fabrication of porous polymeric structures using a simple sonication technique for tissue engineering." Journal of Polymer Engineering 37, no. 9 (2017): 943–51. http://dx.doi.org/10.1515/polyeng-2016-0423.

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AbstractPorous polymeric scaffolds have been applied successfully in the biomedical field. This work explores the use of an ultrasonic probe to generate cavitation in a polymeric solution, thus producing pores in the polymeric scaffolds. Porous polymeric structures with average pore sizes ranging from 5 to 63 μm and porosity of 6–44% were fabricated by a process consisting of sonication, flash freezing, and lyophilization of poly(lactic-co-glycolic acid) (PLGA), gelatin (GEL), chitosan (CS) and poly(vinyl alcohol) (PVAL) solutions. Pore structure was characterized by scanning electron microsco

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Sarıbıyık, Oğuz Yunus, İlyas Gönül, Burak Ay, and Serkan Karaca. "The effect of metalation processes on polymer morphology and conductivity properties." Polymers and Polymer Composites 29, no. 9_suppl (2021): S1340—S1350. http://dx.doi.org/10.1177/09673911211048287.

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In this work, an insoluble three dimensional (3D) porous polymeric structure and their metal complexes were synthesised by the condensation reactions of meta(m)-phenylenediamine, para(p)-phenylenediamine and glutaraldehyde. The morphological and spectral features of the porous polymeric structures were determined using different analytical and spectroscopic methods, including field emission scanning electron microscopy, four-point probe electrical conductivity, photoluminescence spectroscopy, Fourier-transform infrared spectroscopy, surface area Brunauer–Emmett–Teller and magnetic and thermal

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Hasmaliza, Mohamad, Musa Siti Naqiah, and Ibrahim Norfadhilah. "Effect of the Sponge Used as the Template for the Production of Porous Cordierite." Advanced Materials Research 858 (November 2013): 56–59. http://dx.doi.org/10.4028/www.scientific.net/amr.858.56.

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Cordierite (2MgO.2Al2O3.5SiO2) is widely used in high temperature applications due to its high melting temperature and high resistance to thermal, chemical and corrosion shock. The use of various structure of cordierite especially porous structure became more popular where its properties can be tailored by controlling the open and closed porosity, cell size distribution and cell morphology. In this study, porous cordierite was synthesized using sol-gel method followed by replication of polymeric sponge method using three different types of polymeric sponge (Type A, B and C). Immersed sponge we

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Sonoda, Tsutomu, and Kiyotaka Katou. "Coating of Granular Polymeric Spacers with Copper by Sputter-Deposition for Enhancing Cell Wall Structure of Sintered Highly Porous Aluminum Materials." Materials Science Forum 660-661 (October 2010): 432–36. http://dx.doi.org/10.4028/www.scientific.net/msf.660-661.432.

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The deposition of copper onto acrylic resin powder in its self-convective motion by magnetron DC sputtering was examined in order to prepare granular polymeric spacers coated with the metal, aiming at enhancing the cell wall structure of sintered highly porous aluminum materials. The fabrication of sintered highly porous aluminum materials was carried out in an ordinary powder metallurgy processing combined with a space-holder method with the polymer-copper binary spacer granules prepared by powder-coating using the sputter-deposition technique. The effects of the sputter-deposition of copper

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Altschuh, Patrick, Willfried Kunz, Marcel Bremerich, Andreas Reiter, Michael Selzer, and Britta Nestler. "Wicking in Porous Polymeric Membranes: Determination of an Effective Capillary Radius to Predict the Flow Behavior in Lateral Flow Assays." Membranes 12, no. 7 (2022): 638. http://dx.doi.org/10.3390/membranes12070638.

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The working principle of lateral flow assays, such as the widely used COVID-19 rapid tests, is based on the capillary-driven liquid transport of a sample fluid to a test line using porous polymeric membranes as the conductive medium. In order to predict this wicking process by simplified analytical models, it is essential to determine an effective capillary radius for the highly porous and open-pored membranes. In this work, a parametric study is performed with selected simplified structures, representing the complex microstructure of the membrane. For this, a phase-field approach with a speci

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Vyrovoy, Valeriy, Viacheslav Bachynckyi, and Nadia Antoniuk. "Porous Polymer Coatings Based on Nitrocellulose." Materials Science Forum 968 (August 2019): 68–75. http://dx.doi.org/10.4028/www.scientific.net/msf.968.68.

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The paper presents the development of optimum structures and the production of polymeric coatings technology which can absorb aggressive substances. The studies of coatings penetrating into the film are presented due to the organization of their capillary-cellular structure by introducing special fillers. A new approach to solve the problem of protecting the environment, people, buildings and structures from the effects of aggressive substances has been proposed. The essence of the method consists in the preventive deposition on the surfaces of construction objects of porous coatings that can

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Zhang, Jinshui, Jennifer Ann Schott, Shannon M. Mahurin, and Sheng Dai. "Porous Structure Design of Polymeric Membranes for Gas Separation." Small Methods 1, no. 5 (2017): 1600051. http://dx.doi.org/10.1002/smtd.201600051.

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Wang, Xiang, Yuguo Xia, Haimei Wang, Xiuling Jiao, and Dairong Chen. "Etching-induced highly porous polymeric carbon nitride with enhanced photocatalytic hydrogen evolution." Chemical Communications 57, no. 34 (2021): 4138–41. http://dx.doi.org/10.1039/d1cc00214g.

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Du, Mu, Maoquan Huang, Xiyu Yu, Xingjie Ren, and Qie Sun. "Structure Design of Polymer-Based Films for Passive Daytime Radiative Cooling." Micromachines 13, no. 12 (2022): 2137. http://dx.doi.org/10.3390/mi13122137.

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Passive daytime radiative cooling (PDRC), a cooling method that needs no additional energy, has become increasingly popular in recent years. The combination of disordered media and polymeric photonics will hopefully lead to the large-scale fabrication of high-performance PDRC devices. This work aims to study two typical PDRC structures, the randomly distributed silica particle (RDSP) structure and the porous structure, and systematically investigates the effects of structural parameters (diameter D, volume fraction fv, and thickness t) on the radiative properties of the common plastic material

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Schiera, Veronica, Francesco Carfì Pavia, Vincenzo La Carrubba, Valerio Brucato, and Nadka Tz Dintcheva. "Poly-l-Lactic Acid Scaffolds Additivated with Rosmarinic Acid: A Multi-Analytical Approach to Assess The Morphology, Thermal Behavior, and Hydrophilicity." Polymers 16, no. 12 (2024): 1672. http://dx.doi.org/10.3390/polym16121672.

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This study aims to demonstrate the possibility of incorporating a natural antioxidant biomolecule into polymeric porous scaffolds. To this end, Poly-l-Lactic Acid (PLLA) scaffolds were produced using the Thermally Induced Phase Separation (TIPS) technique and additivated with different amounts of rosmarinic acid (RA). The scaffolds, with a diameter of 4 mm and a thickness of 2 mm, were characterized with a multi-analytical approach. Specifically, Scanning Electron Microscopy analyses demonstrated the presence of an interconnected porous network, characterized by a layer of RA at the level of t

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Lv, Ying, Mu Qin Li, Han Song Yang, and Xiao Jie Li. "Porous Hydroxyapatite Bioceramics Prepared by Polymeric Sponge Impregnation Process." Key Engineering Materials 336-338 (April 2007): 1612–14. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1612.

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Porous hydroxyapatite bioceramics were obtained by impregnating the polyurethane sponge with rheologically optimized slurry. 6wt% bioglass was doped into hydroxyapatite to act as a sintering additive. Thermal analysis was used to study the pyrolysis process of the polyurethane sponge. Phase component and surface morphology were characterized by X-ray diffraction and scanning electron microscopy, respectively. It was found that hydroxyapatite was the main phase composition of the porous ceramics sintered at 1250°C. The porous bodies prepared had an open, uniform and interconnected structure wit

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Nada, Hironori, Masakazu Kudo, Junichi Takahashi, Toshiharu Yamamoto, Hideyuki Hara, and Kazuyuki Shizawa. "Development of Simulation Technology for Production of Porous Polymeric Membranes." Key Engineering Materials 725 (December 2016): 261–66. http://dx.doi.org/10.4028/www.scientific.net/kem.725.261.

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Porous polymeric membranes are used for ion exchange membranes, membrane filter and separators of batteries owing to its micro-porous structure. Extension method is one of the inexpensive processes of such membrane. However, any suitable stability condition of the process has not yet been clarified. In this study, SEM (Scanning Electron Microscope) observations in production process are carried out and the simulation technology for production is developed for improvement in productivity. In this simulation model, the evolution equation of microscopic damage, constitutive equation depending on

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Pączkowski, Przemysław, and Barbara Gawdzik. "Studies on Preparation, Characterization and Application of Porous Functionalized Glycidyl Methacrylate-Based Microspheres." Materials 14, no. 6 (2021): 1438. http://dx.doi.org/10.3390/ma14061438.

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A one-step swelling and polymerization technique was used in the synthesis of porous glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) monodisperse polymeric microspheres. The polystyrene (PS) seed obtained in the dispersion polymerization was used as a shape template. The presence of epoxide rings in the chemical structure of microspheres enables their post-polymerization chemical modifications involving: the Diels-Alder reaction with sodium cyclopentadienide and maleic anhydride, the reaction with 4,4′-(bismaleimido)diphenylmethane, and the thiol-Michael reaction with me

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Cipriani, Ciera E., Taekwang Ha, Oliver B. Martinez Defilló, et al. "Structure–Processing–Property Relationships of 3D Printed Porous Polymeric Materials." ACS Materials Au 1, no. 1 (2021): 69–80. http://dx.doi.org/10.1021/acsmaterialsau.1c00017.

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Gawdzik, B., and J. Osypiuk. "Characterization of the porous structure of polymeric packings for HPLC." Chromatographia 54, no. 9-10 (2001): 595–99. http://dx.doi.org/10.1007/bf02492184.

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Shi, Xudong, Lei Sun, Jian Jiang, Xiaolin Zhang, Wenjun Ding, and Zhihua Gan. "Biodegradable Polymeric Microcarriers with Controllable Porous Structure for Tissue Engineering." Macromolecular Bioscience 9, no. 12 (2009): 1211–18. http://dx.doi.org/10.1002/mabi.200900224.

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Akbari Afkhami, Farhad, Ghodrat Mahmoudi, Barbara Miroslaw, et al. "Complexes of BiCl3 with hydrazone derived ligands: a Möbius-like discrete metal chelate versus a salt-like porous polymeric structure." New Journal of Chemistry 44, no. 22 (2020): 9429–37. http://dx.doi.org/10.1039/d0nj00930j.

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Naqshbandi, Abreeq, Iis Sopyan, Gunawan, and Suryanto. "Sol-Gel Synthesis of Zn Doped HA Powders and their Conversion to Porous Bodies." Applied Mechanics and Materials 493 (January 2014): 603–8. http://dx.doi.org/10.4028/www.scientific.net/amm.493.603.

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The present study was aimed at fabricating porous ceramic scaffolds via polymeric sponge method for biomedical applications using as synthesized Zinc doped Hydroxyapatite (ZnHA) powders. Zn doped HA powders were prepared via sol-gel method using diammonia hydrogen phosphate [(NH4)2HPO4] and calcium nitrate tetrahydrate [Ca (NO3)2.4H2 as starting materials. The obtained powders were then used for the preparation of porous ZnHA scaffolds via polymeric sponge method. The green porous bodies so developed by impregnating cellulosic sponges with HA slurries, were subjected to sintering process at a

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Tasci, Muhammed Enes, Berna Dede, Eray Tabak, et al. "Production, Optimization and Characterization of Polylactic Acid Microparticles Using Electrospray with Porous Structure." Applied Sciences 11, no. 11 (2021): 5090. http://dx.doi.org/10.3390/app11115090.

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Polymeric microparticles with controlled morphologies and sizes are being studied by researchers in many applications, such as for drug release, healthcare and cosmetics. Herein, spherical and porous polymeric microparticles of different sizes and morphologies by electrospray technique have been developed as a viable alternative. In this work, polylactic acid (PLA) microparticles with a spherical shape and porous morphology were successfully produced via an electrospray technique in a single step. Molecular interactions between the components and the effect of parameters, such as varying solve

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Huang, Di, Yi Zuo, Jidong Li, et al. "Bioactive composite gradient coatings of nano-hydroxyapatite/polyamide66 fabricated on polyamide66 substrates." Journal of The Royal Society Interface 9, no. 72 (2012): 1450–57. http://dx.doi.org/10.1098/rsif.2011.0782.

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Tightly bonding of bioactive coating is the first crucial need for orthopaedic implants. This study describes a novel and convenient technique to prepare bioactive coating with high adhesion on orthopaedic substitutes made of polymeric matrix. Here, a chemical corrosion method has been adopted to fabricate a coating on the surface of injection-moulded polyamide66 (PA66) substrates by corrosive nano-hydroxyapatite/polyamide66 (n-HA/PA66) composite slurry. Scanning electron microscopy observation shows that a porous chemical corrosion region presents between the coating and dense PA66 substrate.

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22

Sopyan, I., C. M. Mardziah, and Ramesh Singh. "Fabrication of Porous Ceramic Scaffolds via Polymeric Sponge Method Using Sol-Gel Derived Strontium Doped Hydroxyapatite." Applied Mechanics and Materials 117-119 (October 2011): 829–32. http://dx.doi.org/10.4028/www.scientific.net/amm.117-119.829.

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Recently, development of porous calcium phosphates ceramics has raised considerable interest. A porous structure promotes cell attachment, proliferation and provides pathways for biofluids. Therefore, a high porosity with interconnected pore structure generally favors tissue regeneration. In this work, replication of 0, 2, 5, 10 and 15% SrHA (strontium-doped hydroxyapatite) porous scaffolds via polymeric sponge method has been employed using the sol-gel derived SrHA powders. To prepare the porous samples, the synthesized SrHA powders were mixed with distilled water and dispersing agent followe

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Jaćkowska, Magdalena, Szymon Bocian, Barbara Gawdzik, Marta Grochowicz, and Bogusław Buszewski. "Influence of chemical modification on the porous structure of polymeric adsorbents." Materials Chemistry and Physics 130, no. 1-2 (2011): 644–50. http://dx.doi.org/10.1016/j.matchemphys.2011.07.039.

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Ovchinnikov, V. V., V. D. Seleznev, V. V. Surguchev, and V. I. Kuznetsov. "Controllable changes in the porous structure of polymeric nuclear track membranes." Journal of Membrane Science 55, no. 3 (1991): 299–310. http://dx.doi.org/10.1016/s0376-7388(00)80584-0.

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Ding, Chi, Junjie Wang, Yu Han, Jianan Yuan, Hao Gao, and Jian Sun. "High Energy Density Polymeric Nitrogen Nanotubes inside Carbon Nanotubes." Chinese Physics Letters 39, no. 3 (2022): 036101. http://dx.doi.org/10.1088/0256-307x/39/3/036101.

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Polymeric nitrogen as a new class of high energy density materials has promising applications. We develop a new scheme of crystal structure searching in a confined space using external confining potentials fitted from first-principles calculations. As a showcase, this method is employed to systematically explore novel polymeric nitrogen structures confined in single-walled carbon nanotubes. Several quasi-one-dimensional single-bonded polymeric nitrogen structures are realized, two of them are composed of nanotubes instead of chains. These new polymeric nitrogen phases are mechanically stable a

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Jasmawati, Noor, Joy R. P. Djuansjah, Mohammed Rafiq Abdul Kadir, and Irza Sukmana. "Porous Magnesium Scaffolds for Bone Implant Applications: A Review." Advanced Materials Research 1125 (October 2015): 437–40. http://dx.doi.org/10.4028/www.scientific.net/amr.1125.437.

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For over two decades, various porous polymeric and metallic-based implants have been used as load-bearing scaffold for mechanical attachment and tissue ingrowths. Porous implants designed for biological fixation of prostheses in bone replacement and enhance mechanical demand as load-bearing material. Therefore, studies on the effect of using parameters, such as pore size, pore structure, and porosity with respect to cell adhesion as well as tissue ingrowths have been extensively reported. This article aims to report the current status and future challenge on using porous magnesium scaffold for

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Lee, Sang Jin, Chung Hyo Lee, and S. Y. Chun. "Organic-Inorganic Solution Technique for Fabrication of Porous CaO-SiO₂ Based Powders." Key Engineering Materials 287 (June 2005): 117–22. http://dx.doi.org/10.4028/www.scientific.net/kem.287.117.

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Soft and porous CaO-SiO2 powders (CaSiO3, Ca2SiO4, Ca3SiO5) were fabricated by organic-inorganic solution technique. Calcium nitrate and Ludox SK silica sol were dissolved in D.I. water and then 5 wt% polyvinyl alcohol solution was added as a polymeric carrier. The metal cations were dispersed well in solution and a homogeneous polymeric network was formed. The organic-inorganic precursor gels were turned to porous powder having volume expansion through an explosive oxidation reaction during calcination process. The polyvinyl alcohol content and heating rate were affected on the explosive reac

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Cešek, Bretislav, Miloslav Milichovský, and František Potucek. "Kinetics of Vapour Diffusion and Condensation in Natural Porous Cellulosic Fibre Web." ISRN Materials Science 2011 (October 5, 2011): 1–7. http://dx.doi.org/10.5402/2011/794306.

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Vapour diffusion in a porous web material followed by its absorption or condensation is a typical process for all porous materials particularly on polymeric and natural basis. The description of kinetic weight increment increase during this process was proposed by use of a relatively simple function with adequately defined theoretical background. It was shown that this kinetic process is controlled by vapour diffusion through porous web material. This tool in connection with observations at different air relative humidity and with use of relatively simple technique enables one to evaluate the

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Guo, Yunlong, and Shuzhen Ren. "Bilayer PMMA antireflective coatings via microphase separation and MAPLE." Journal of Polymer Engineering 41, no. 2 (2020): 164–73. http://dx.doi.org/10.1515/polyeng-2020-0198.

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Abstract A poly(methyl methacrylate) (PMMA) bilayer antireflective coating (ARC) is designed based on polymeric microphase separation and matrix-assisted pulsed laser evaporation (MAPLE). The spin-coated layer shows subwavelength porous network structures, after phase separation via annealing and removal of the polystyrene (PS) phase, while the MAPLE deposited surface layer exhibits a biomimic moth-eye structure on glass to trap the incident light. The elaborate spin coated structure can be controlled flexibly by changing the ratio of mixture, annealing time and temperature, and the moth-eye s

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Li, Zhangnan, Qinghao Meng, Yajie Yang, Xiaoqin Zou, Ye Yuan, and Guangshan Zhu. "Constructing amidoxime-modified porous adsorbents with open architecture for cost-effective and efficient uranium extraction." Chemical Science 11, no. 18 (2020): 4747–52. http://dx.doi.org/10.1039/d0sc00249f.

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Nieto, Steven, Eder Piceros, Gonzalo R. Quezada, Pedro Robles, and Ricardo I. Jeldres. "Structure–Performance Relationship of Anionic Polyacrylamide in Pyrite-Containing Tailings: Insights into Flocculation Efficiency." Polymers 17, no. 8 (2025): 1055. https://doi.org/10.3390/polym17081055.

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Functional polymeric materials play a critical role in optimizing flocculation and sedimentation processes in mining tailings, where complex interactions with mineral surfaces govern polymer performance. This study examines the structure–performance relationship, which describes how the internal structure of aggregates (e.g., compactness, porosity and fractal dimension) influences sedimentation behavior, specifically for anionic polyacrylamide (SNF 704) in kaolin-quartz-pyrite suspensions at a pH of 10.5. Using focused beam reflectance measurement (FBRM) and static sedimentation tests, we demo

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Liu, Zehua, Yunzhan Li, Wei Li, et al. "Close-loop dynamic nanohybrids on collagen-ark with in situ gelling transformation capability for biomimetic stage-specific diabetic wound healing." Materials Horizons 6, no. 2 (2019): 385–93. http://dx.doi.org/10.1039/c8mh01145a.

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A self-regulated dynamic nanohybrid that can sensitively respond to hyperglycemic microenvironment is developed. The nanohybrid with a core/shell structure is produced through a single-step microfluidics nanoprecipitation method, where drugs-loaded porous silicon (PSi) nanoparticles are encapsulated by H<sub>2</sub>O<sub>2</sub> responsive polymeric matrix.

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Chen, Jin-Xiang, Ni-Ni Ding, Ming Chen, et al. "A Three-Component 1D/2D → 2D Interpenetrated Coordination Network: Structure and Gas Adsorption Studies." Australian Journal of Chemistry 67, no. 10 (2014): 1391. http://dx.doi.org/10.1071/ch14111.

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We herein report a Cd-based coordination polymer containing three integrated polymeric components: two neutral and entangled two-dimensional (6,3) nets and one zwitterionic one-dimensional polymer with corner-sharing double-stranded chains propagating along the c-direction to lock the consecutive ligand struts of the (6,3) nets. Despite a sophisticated entanglement, this coordination polymer is porous to selectively adsorb CO2.

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Shoukat, Hina, Sobia Noreen, and Saima Asghar. "Hydrogels as Controlled Drug Delivery System: A Brief Review of Properties Classification and Synthesis." Global Pharmaceutical Sciences Review V, no. I (2020): 40–49. http://dx.doi.org/10.31703/gpsr.2020(v-i).05.

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Hyrogels are cariers of novel drug delievry system and these polymeric network have ability to hold large amount of water but they do not dissolve in water .These polymeric network may be crosslinked either through chemical or physical crosslinking method. Without changing their three dimensional structure hydrogels undergo the swelling mechanism Hydrogels are used as drug delivery carriers because of their distinctive properties. They have three dimensional configurations and have water soluble cross linked network of polymers .Hydrogels have porous structure and by changing the cross linker

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Jach, Katarzyna, Katarzyna Pietrzak, Dariusz Kalinski, and Marcin Chmielewski. "Influence of Binder on Porous Ceramic Properties Prepared by Polymeric Sponge Method." Advances in Science and Technology 63 (October 2010): 164–69. http://dx.doi.org/10.4028/www.scientific.net/ast.63.164.

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Porous ceramic materials are used in medicine as well as in industry. They can be prepared in the form of filter components, thermal insulators, or composite components. Preforms of this type can only be applied if they meet the respective structural requirements. In the present study, such a porous ceramic material was produced by the polymeric sponge method using a polyurethane sponge and a-Al2O3 Almatis. The aqueous suspension was prepared with binders of the two types: polyvinyl alcohol and a dispersion based on methacrylic acid esters and styrene. The aim of this study was to find the rel

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Peng, Qiaohong, Hailin Cong, Bing Yu, et al. "Preparation of polymeric Janus microparticles with hierarchically porous structure and enhanced anisotropy." Journal of Colloid and Interface Science 522 (July 2018): 144–50. http://dx.doi.org/10.1016/j.jcis.2018.03.066.

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Maciejewska, Ma?gorzata, and Barbara Gawdzik. "Preparation and porous structure characterization of 4,4?-diphenylmethane dimethacrylate/divinylbenzene polymeric particles." Journal of Applied Polymer Science 95, no. 4 (2004): 863–70. http://dx.doi.org/10.1002/app.21284.

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Maciejewska, Malgorzata, Radoslaw Zaleski, and Marek Gorgol. "Investigation of porous structure polymeric materials based on 1-vinyl-2-pyrrolidone." Polymers for Advanced Technologies 29, no. 7 (2018): 2042–49. http://dx.doi.org/10.1002/pat.4312.

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Chinu, Kumari1 Dev Prakash Dahiya1 Kanika Thakur*1 Nikhil Rana1 Rahul Sharma1 Abhilash Rai1 Abhishek Soni2. "Cyclodextrin Based Nanosponges: A Novel Approach For Targeted Drug Delivery." International Journal in Pharmaceutical Sciences 2, no. 3 (2024): 46–57. https://doi.org/10.5281/zenodo.10775995.

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Solid cross-linked porous nanoscale polymeric structures are known as nanosponges. This broad idea includes hydrogels and metal organic frameworks. This manuscript focuses on nanosponges, their types and details related to its crucial type cyclodextrin based nanosponges, their methods of preparation and applications. Cyclodextrins are starch-derived cyclic oligomers of glucose. Cyclodextrins have the rare capacity to form inclusion host-guest complexes with numerous hydrophobic substances due to the unique structure created by the combination of the outward hydrophilicity and the inside hydrop

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Wang, Qiang, Shi Dong Wang, Hui Min Zhao, and Shu Liang Zang. "Synthesis and Characterization of Rhenium Concerned Macroporous Adsorption Resin Microspheres." Advanced Materials Research 1048 (October 2014): 511–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1048.511.

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The macroporous resin is one kind of new non-ionic organic high polymer absorbent with nearly 20 years development. It takes the styrene and the acrylic ester as the monomer, divinyl benzene as the crosslinking agent, the toluene and the xylene as aperture reagents. They intersectantly linked the polymerization to form the porous skeleton structure mutually. This experiment is the utilization of aerosol polymerization method in preparation of rhenium concerned polymeric adsorbent. On research of monomer and crosslinking agent allocated proportion, dispersing agent amount used, temperature and

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Murcia-Salvador, Ainoa, María Isabel Rodríguez-López, José Antonio Pellicer, et al. "Development of Chitosan Polysaccharide-Based Magnetic Gel for Direct Red 83:1 Removal from Water." Gels 10, no. 8 (2024): 496. http://dx.doi.org/10.3390/gels10080496.

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Water pollution caused by dyes is a significant environmental issue, necessitating the development of effective, cost-efficient decolorization methods suitable for industrial use. In this study, a Chitosan-Fe polymeric gel was synthesized, characterized, and tested for removing the azo dye Direct Red 83:1 from water. The polymeric magnetic chitosan was analyzed using various techniques: Field Emission Scanning Electron Microscopy (FE-SEM) revealed a porous structure, Differential Scanning Calorimetry (DSC) and Thermal Gravimetric Analysis (TGA) demonstrated the thermal stability, Infrared Spec

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Hu, Yinghui, Diping Huang, Jing Yan, et al. "Polyoxovanadate-Based Cyclomatrix Polyphosphazene Microspheres as Efficient Heterogeneous Catalysts for the Selective Oxidation and Desulfurization of Sulfides." Molecules 27, no. 23 (2022): 8560. http://dx.doi.org/10.3390/molecules27238560.

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The [V6O13]2− cluster is successfully immobilized to the polymeric framework of cyclomatrix polyphosphazene via the facile precipitation polymerization between the phenol group symmetrically modified [V6O13]2− and hexachlorocyclotriphosphazene. The structure of the as-prepared polyoxometalate-containing polyphosphazene (HCCP-V) was characterized by FT-IR, XPS, TGA, BET, as well as SEM and zeta potential. The presence of a rigid polyoxometalate cluster not only supports the porous structure of the polymeric framework but also provides an improved catalytic oxidation property. By using H2O2 as a

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Saleem, Junaid, Zubair Khalid Baig Moghal, Snigdhendubala Pradhan, et al. "Adsorbent-Embedded Polymeric Membranes for Efficient Dye-Water Treatment." Polymers 16, no. 11 (2024): 1459. http://dx.doi.org/10.3390/polym16111459.

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Traditional bulk adsorbents, employed for the removal of dyes and metal ions, often face the drawback of requiring an additional filtration system to separate the filtrate from the adsorbent. In this study, we address this limitation by embedding the adsorbent into the polymer matrix through a process involving dissolution–dispersion, spin-casting, and heat-stretching. Selective dissolution and dispersion facilitate the integration of the adsorbent into the polymer matrix. Meanwhile, spin-casting ensures the formation of a uniform and thin film structure, whereas heat-induced stretching produc

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Ronka, Sylwia, Małgorzata Kujawska, and Honorata Juśkiewicz. "Triazines removal by selective polymeric adsorbent." Pure and Applied Chemistry 86, no. 11 (2014): 1755–69. http://dx.doi.org/10.1515/pac-2014-0722.

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Abstract The objective of the study was to investigate sorption of simazine, atrazine, propazine and terbuthylazine on specific polymeric adsorbent and thereby evaluate the possibility of triazine-based herbicide removal from the aqueous solution. In order to obtain polymer adsorbent for triazines removal, the poly(divinylbenzene) was synthesized in radical polymerization using bead polymerization, and modified with maleic anhydride in Diels–Alder reaction with subsequent base hydrolysis. The porous material containing carboxyl groups was obtained. Experiments have been performed in single and

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Park, Ki-Beom, Myung-Sung Kim, Jeong-Hyeon Kim, Seul-Kee Kim, and Jae-Myung Lee. "Analysis of the mechanical properties of polymer materials considering lateral confinement effects." Journal of Polymer Engineering 39, no. 5 (2019): 432–41. http://dx.doi.org/10.1515/polyeng-2018-0299.

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Abstract The mechanical properties of polyurethane foam (PUF) and glass fiber-reinforced PUF (R-PUF), which are widely used in various fields, were investigated considering the influence of lateral confinement. PUF and R-PUF – representative polymeric foams with a porous structure – are suitable for severe environments (e.g. the cryogenic field) because they have an excellent adiabatic function and load-bearing capability. However, when PUF and R-PUF are used in actual structures, the mechanical performance of the foam materials may change depending on the conditions. Assuming that a compressi

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Sorrentino, Luigi, Marco Aurilia, Marco D'Auria, et al. "Mimicking the Anisotropic Behavior of Natural Porous Structures by Controlling the Reinforcing Particles Distribution in Polymeric Foams." Advances in Science and Technology 84 (September 2012): 1–6. http://dx.doi.org/10.4028/www.scientific.net/ast.84.1.

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Natural porous materials, like wood or bone, are multiscale cellular composite structures which exhibit mechanical (such as elasticity and strength) and functional (such as the thermal or acoustic insulating properties) behaviors dependent on the measuring direction. They show the best performance/weight ratio among all materials because their response is optimized in the needed direction by removing matter where not strictly functional, giving as a result a strong structural as well as morphological anisotropy. A new approach has been developed to mimic this behavior in polymeric foams, in wh

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Silvestre-Albero, Ana M., Anass Wahby, Joaquín Silvestre-Albero, Francisco Rodríguez-Reinoso, and William Betz. "Carbon Molecular Sieves Prepared from Polymeric Precursors: Porous Structure and Hydrogen Adsorption Properties." Industrial & Engineering Chemistry Research 48, no. 15 (2009): 7125–31. http://dx.doi.org/10.1021/ie900091n.

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Kalinina, R. N., D. P. Solntseva, and É. A. Uvarova. "Relationship between granule size and the parameters of porous structure of polymeric sorbents." Pharmaceutical Chemistry Journal 32, no. 7 (1998): 393–95. http://dx.doi.org/10.1007/bf02645999.

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Kim, Jae-Kyung, Kentaro Taki, Shinsuke Nagamine, and Masahiro Ohshima. "Preparation of a polymeric membrane with a fine porous structure by dry casting." Journal of Applied Polymer Science 111, no. 5 (2009): 2518–26. http://dx.doi.org/10.1002/app.29348.

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Ganesan, Vinothkumar, and Sungho Yoon. "Cr-Phthalocyanine Porous Organic Polymer as an Efficient and Selective Catalyst for Mono Carbonylation of Epoxides to Lactones." Catalysts 10, no. 8 (2020): 905. http://dx.doi.org/10.3390/catal10080905.

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A facile, one-pot design strategy to construct chromium(III)-phthalocyanine chlorides (Pc’CrCl) to form porous organic polymer (POP-Pc’CrCl) using solvent knitting Friedel-Crafts reaction (FCR) is described. The generated highly porous POP-Pc’CrCl is functionalized by post-synthetic exchange reaction with nucleophilic cobaltate ions to provide an heterogenized carbonylation catalyst (POP-Pc’CrCo(CO)4) with Lewis acid-base type bimetallic units. The produced porous polymeric catalyst is identical to that homogeneous counterpart in structure and coordination environments. The catalyst is very se

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