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Journal articles on the topic 'Polymer liquids'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Shamsuri, Ahmad Adlie, Siti Nurul Ain Md. Jamil, and Khalina Abdan. "A Brief Review on the Influence of Ionic Liquids on the Mechanical, Thermal, and Chemical Properties of Biodegradable Polymer Composites." Polymers 13, no. 16 (2021): 2597. http://dx.doi.org/10.3390/polym13162597.

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Biodegradable polymers are an exceptional class of polymers that can be decomposed by bacteria. They have received significant interest from researchers in several fields. Besides this, biodegradable polymers can also be incorporated with fillers to fabricate biodegradable polymer composites. Recently, a variety of ionic liquids have also been applied in the fabrication of the polymer composites. In this brief review, two types of fillers that are utilized for the fabrication of biodegradable polymer composites, specifically organic fillers and inorganic fillers, are described. Three types of

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2

Shamsuri, Ahmad Adlie, Siti Nurul Ain Md Jamil, and Khalina Abdan. "The influence of ionic liquid pretreatment on the physicomechanical properties of polymer biocomposites: A mini-review." e-Polymers 22, no. 1 (2022): 809–20. http://dx.doi.org/10.1515/epoly-2022-0074.

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Abstract Increasing concern for the environment has led researchers to pay more attention to the fabrication of polymer biocomposites for many different applications. Polymer biocomposites have generally been fabricated utilizing synthetic or natural polymers with natural fillers. Recently, ionic liquids have been used for the pretreatment of natural fillers prior to the fabrication of polymer biocomposites. In this mini-review, four types of ionic liquids used for the pretreatment of natural filler are classified, specifically chloride-, diethyl phosphate-, acetate-, and bistriflimide-based i

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3

Safonova, L. P., and L. E. Shmukler. "Polymer Electrolytes Based on Polybenzimidazole, Poly(Vinylidene Fluoride-co-Hexafluoropropylene), and Ionic Liquids." Высокомолекулярные соединения А 65, no. 4 (2023): 249–74. http://dx.doi.org/10.31857/s2308112023700566.

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Ionic liquids, salts with melting temperature below 100°C, have continuously attracted research interest. Introduction of ionic liquids in a polymer matrix affords polymer electrolytes exhibiting extremely high electroconductivity and electrochemical stability, membranes on their basis possessing good mechanical properties. Diversity of the polymers/copolymers suitable as the matrix as well as practically unlimited variety of ionic liquids (obtained via variation of the anion-cation composition and additional modification of the ions chemical structure) have afforded the polymer electrolytes w

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Shamsuri, Ahmad Adlie, Siti Nurul Ain Md Jamil, and Khalina Abdan. "Processes and Properties of Ionic Liquid-Modified Nanofiller/Polymer Nanocomposites—A Succinct Review." Processes 9, no. 3 (2021): 480. http://dx.doi.org/10.3390/pr9030480.

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Ionic liquids can typically be synthesized via protonation, alkylation, metathesis, or neutralization reactions. The many types of ionic liquids have increased their attractiveness to researchers for employment in various areas, including in polymer composites. Recently, ionic liquids have been employed to modify nanofillers for the fabrication of polymer nanocomposites with improved physicochemical properties. In this succinct review, four types of imidazolium-based ionic liquids that are employed as modifiers—specifically alkylimidazolium halide, alkylimidazolium hexafluorophosphate, alkylim

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Sverdlikovska, O. S., and M. O. Potapchuk. "Synthesis of polymer ionic liquids and ionene-type ionic liquids." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 6 (December 2024): 101–9. https://doi.org/10.32434/0321-4095-2024-157-6-101-109.

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The synthesis of polymer ionic liquids and ionene-type ionic liquids has been optimized through the implementation of a rigorous scientific and methodical approach. The feasibility of utilizing an integrated "polymer–monomer" strategy for synthesizing polymer ionic liquids has been demonstrated. The concentration-dependent viscosity of ionene-type polymer ionic liquids in solutions was analyzed, and the influence of their chemical nature was elucidated. Practical recommendations have been developed to address the scientific and applied challenges associated with creating new ionene-type polyme

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Demir, Baris, Gabriel Perli, Kit-Ying Chan, Jannick Duchet-Rumeau, and Sébastien Livi. "Molecular-Level Investigation of Cycloaliphatic Epoxidised Ionic Liquids as a New Generation of Monomers for Versatile Poly(Ionic Liquids)." Polymers 13, no. 9 (2021): 1512. http://dx.doi.org/10.3390/polym13091512.

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Recently, a new generation of polymerised ionic liquids with high thermal stability and good mechanical performances has been designed through novel and versatile cycloaliphatic epoxy-functionalised ionic liquids (CEILs). From these first promising results and unexplored chemical structures in terms of final properties of the PILs, a computational approach based on molecular dynamics simulations has been developed to generate polymer models and predict the thermo–mechanical properties (e.g., glass transition temperature and Young’s modulus) of experimentally investigated CEILs for producing mu

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Kim, Dokyung, So Jung Seo, Ji-Hun Seo, and Young Joo Lee. "Exploring the Relationship between Ion Diffusion and Molecular Structure of Gel Polymer Electrolytes Using NMR Spectroscopy." ECS Meeting Abstracts MA2024-02, no. 7 (2024): 964. https://doi.org/10.1149/ma2024-027964mtgabs.

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Lithium rechargeable batteries are widely used as energy sources for portable electronic devices, automobile, and wearable electronics. However, concerns regarding fire hazards have prompted efforts to transition from liquid to solid electrolytes. Gel polymer electrolytes (GPEs) have emerged as promising alternatives for enhancing the safety of lithium batteries. The ion conduction mechanism in GPEs can be conceptualized in two distinct modes: a liquid-like mechanism and a solid-like mechanism. We focus on the investigation of the liquid-like mechanism, which relies on polymer segmental motion

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8

Shamsuri, Ahmad Adlie, Siti Nurul Ain Md. Jamil, Mohd Zuhri Mohamed Yusoff, and Khalina Abdan. "Polymer Composites Containing Ionic Liquids: A Study of Electrical Conductivity." Electronic Materials 5, no. 4 (2024): 189–203. http://dx.doi.org/10.3390/electronicmat5040013.

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Polymer composites are engineered materials that combine polymers with diverse fillers to enhance their physicochemical properties. The electrical conductivity of polymer composites is a vital characteristic that significantly broadens their use, particularly in electronic applications. The addition of ionic liquids into polymer composites represents a new method to enhance their functional properties, particularly in terms of electrical conductivity. In this brief review, several polymer matrices, conductive fillers, and ionic liquids utilized in polymer composites are categorized. Additional

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9

Ebrahimi, Mohammad, Kateryna Fatyeyeva, and Wojciech Kujawski. "Different Approaches for the Preparation of Composite Ionic Liquid-Based Membranes for Proton Exchange Membrane Fuel Cell Applications—Recent Advancements." Membranes 13, no. 6 (2023): 593. http://dx.doi.org/10.3390/membranes13060593.

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The use of ionic liquid-based membranes as polymer electrolyte membranes for fuel cell applications increases significantly due to the major features of ionic liquids (i.e., high thermal stability and ion conductivity, non-volatility, and non-flammability). In general, there are three major methods to introduce ionic liquids into the polymer membrane, such as incorporating ionic liquid into a polymer solution, impregnating the polymer with ionic liquid, and cross-linking. The incorporation of ionic liquids into a polymer solution is the most common method, owing to easy operation of process an

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10

Shamsuri, Ahmad Adlie, Khalina Abdan, and Siti Nurul Ain Md. Jamil. "Preparations and Properties of Ionic Liquid-Assisted Electrospun Biodegradable Polymer Fibers." Polymers 14, no. 12 (2022): 2308. http://dx.doi.org/10.3390/polym14122308.

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Enhanced awareness of the environment and environmental conservation has inspired researchers to search for replacements for the use of volatile organic compounds in the processing of polymers. Recently, ionic liquids have been utilized as solvents for solvating natural and synthetic biodegradable polymers since they are non-volatile, recyclable, and non-flammable. They have also been utilized to prepare electrospun fibers from biodegradable polymers. In this concise review, examples of natural and synthetic biodegradable polymers that are generally employed as materials for the preparation of

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11

Shamsuri, Ahmad Adlie, Siti Nurul Ain Md. Jamil, Mohd Zuhri Mohamed Yusoff, and Khalina Abdan. "Methods and Mechanical Properties of Polymer Hybrid Composites and Hybrid Polymer Composites: Influence of Ionic Liquid Addition." Applied Mechanics 5, no. 1 (2023): 1–19. http://dx.doi.org/10.3390/applmech5010001.

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Polymer hybrid composites and hybrid polymer composites are distinct but interconnected composite classes, each with unique compositions and design philosophies. The mechanical properties of these composites are vital in advanced materials due to their impacts on performance, durability, and suitability for various applications. The addition of ionic liquids into these composites is a promising innovation in advanced materials. In this short review, various polymer matrices (e.g., thermosets, thermoplastics, and biopolymers), fillers (e.g., inorganic, carbon, organic, and metal), and ionic liq

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12

Polevaya, Viktoriya, Viktoriya Geiger, Galina Bondarenko, Sergey Shishatskiy, and Valeriy Khotimskiy. "Chemical Modification of Poly(1-Trimethylsylil-1-Propyne) for the Creation of Highly Efficient CO2-Selective Membrane Materials." Materials 12, no. 17 (2019): 2763. http://dx.doi.org/10.3390/ma12172763.

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The work is devoted to the chemical modification of a polymer that is promising for the creation of gas separation membranes, aimed at increasing the selectivity with respect to CO2. The introduction of ionic liquids into the structure of poly(1-trimethylsilyl-1-propyne) is realized by a two-step process: bromination of the initial polymer with N-bromosuccinimide and subsequent addition of tertiary amine (N-butylimidazole) to it. Depending on the process conditions, the method allows polymers with different contents of the ionic liquid to be obtained. The obtained polymers show good film-formi

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13

Wang, Yannan, Qidong Hou, Meiting Ju, and Weizun Li. "New Developments in Material Preparation Using a Combination of Ionic Liquids and Microwave Irradiation." Nanomaterials 9, no. 4 (2019): 647. http://dx.doi.org/10.3390/nano9040647.

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During recent years, synthetic methods combining microwaves and ionic liquids became accepted as a promising methodology for various materials preparations because of their high efficiency and low energy consumption. Ionic liquids with high polarity are heated rapidly, volumetrically and simultaneously under microwave irradiation. Hence, combination of microwave irradiation as a heating source with ionic liquids with various roles (e.g., solvent, additive, template or reactant) opened a completely new technique in the last twenty years for nanomaterials and polymers preparation for application

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14

Dembelova, Tuyana, Yuri Baloshin, Yuri Barnakov, Vitalii Petranovskii, and Bair Damdinov. "Mechanical Properties of Viscous Liquids and Nanosuspensions." Solid State Phenomena 271 (January 2018): 119–23. http://dx.doi.org/10.4028/www.scientific.net/ssp.271.119.

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Following the fundamental work by Bazaron, Bulgadaev and Derjaguin [6] on the observation of shear elasticity of low viscous liquids, we build on this study by examining viscous liquids, polymers and suspensions of nanoparticles. In this paper, we review our past and current efforts in these areas. The mechanical properties of liquids, polymers and nanosuspensions have been studied at relatively low frequencies of 105 Hz. The real and imaginary shear moduli of these samples were obtained on equipment using the acoustic resonance technique. It was shown that the shear modulus and viscosity decr

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15

Silva, Debora T. V., Natalia S. Correia, Mauro A. Souza, and Fernando H. M. Portelinha. "Ca-bentonite/polymer blends to compose GCLs for effective containment of mining leachates." E3S Web of Conferences 569 (2024): 22002. http://dx.doi.org/10.1051/e3sconf/202456922002.

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This study investigates the swelling potential of blends of a Brazilian sodium-activated calcium bentonite with linear structure polymers and a cross-linked structure polymer in contact with aggressive mining solutions (sodium hydroxide, calcium chloride, simulated bauxite liquor, copper tailing and gold tailing leachates). Results showed that the polymer addition contributed to the swelling of the bentonite under aggressive solutions. The effectiveness of the polymers varied with the permeant liquid and concentration. Sodium Polyacrylate and Carboxymethyl Cellulose proved the most effectivene

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16

Kumar, Rajeev, Jyoti P. Mahalik, Kevin S. Silmore, et al. "Capacitance of thin films containing polymerized ionic liquids." Science Advances 6, no. 26 (2020): eaba7952. http://dx.doi.org/10.1126/sciadv.aba7952.

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Electrode-polymer interfaces dictate many of the properties of thin films such as capacitance, the electric field experienced by polymers, and charge transport. However, structure and dynamics of charged polymers near electrodes remain poorly understood, especially in the high concentration limit representative of the melts. To develop an understanding of electric field–induced transformations of electrode-polymer interfaces, we have studied electrified interfaces of an imidazolium-based polymerized ionic liquid (PolyIL) using combinations of broadband dielectric spectroscopy, specular neutron

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17

Giunta, Giuliana, and Paola Carbone. "Cross-over in the dynamics of polymer confined between two liquids of different viscosity." Interface Focus 9, no. 3 (2019): 20180074. http://dx.doi.org/10.1098/rsfs.2018.0074.

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Using molecular dynamics simulations, we analysed the polymer dynamics of chains of different molecular weights entrapped at the interface between two immiscible liquids. We showed that on increasing the viscosity of one of the two liquids the dynamic behaviour of the chain changes from a Zimm-like dynamics typical of dilute polymer solutions to a Rouse-like dynamics where hydrodynamic interactions are screened. We observed that when the polymer is in contact with a high viscosity liquid, the number of solvent molecules close to the polymer beads is reduced and ascribed the screening effect to

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18

St-Antoine, Caroline, Gabrielle Foran, Amandine Bon, et al. "Flammability of Gel Polymer Electrolytes." ECS Meeting Abstracts MA2025-01, no. 5 (2025): 631. https://doi.org/10.1149/ma2025-015631mtgabs.

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Gel polymer electrolytes are promising technology for next-generation lithium batteries, offering a balance between the high ionic conductivity of liquids and the safety of polymers. Although it is often suggested that gel polymer electrolytes are safer than traditional organic electrolytes, there is a lack of systematic research available on the flammability of this type of electrolyte. Flammability testing for liquids, including flash point measurement, is well-established. The flash point temperature represents the minimum temperature at which a vapor-air mixture ignites in the presence of

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19

Luo, Yingjie, Xiaoxia Huang, Shun Yao, Lincai Peng, Fulin Li, and Hang Song. "Synthesis of a New Imidazole Amino Acid Ionic Liquid Polymer and Selective Adsorption Performance for Tea Polyphenols." Polymers 12, no. 10 (2020): 2171. http://dx.doi.org/10.3390/polym12102171.

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A series of imidazolium ionic liquid monomers with L-Proline anions (ViImCn-L-Pro and (ViIm)2Cn(L-Pro)2) were firstly synthesized, after which new copolymer materials were prepared by polymerization of the ionic liquid monomers with N,N′-methylene diacrylamide (MBA). Polymerization conditions, including the ratio of Ils(ViImCn-L-Pro or (ViIm)2Cn(L-Pro)2) and MBA, solvent, ionic liquids and initiator’s amount, were investigated and found to have an important effect on the adsorption capacity. Polymerization conditions were shown to have more significant impacts on adsorption capacities in the f

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20

Zhang, Chenghong, Bin He, Zhipeng Wang, Yanmin Zhou, and Aiguo Ming. "Application and Analysis of an Ionic Liquid Gel in a Soft Robot." Advances in Materials Science and Engineering 2019 (May 2, 2019): 1–14. http://dx.doi.org/10.1155/2019/2857282.

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Due to their light weight, flexibility, and low energy consumption, ionic electroactive polymers have become a hotspot for bionic soft robotics and are ideal materials for the preparation of soft actuators. Because the traditional ionic electroactive polymers, such as ionic polymer-metal composites (IPMCs), contain water ions, a soft actuator does not work properly upon the evaporation of water ions. An ionic liquid polymer gel is a new type of ionic electroactive polymer that does not contain water ions, and ionic liquids are more thermally and electrochemically stable than water. These liqui

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21

Atlaskin, A. A., A. A. Andronova, and O. V. Kazarina. "Thermal Decomposition Characteristics of Poly((4-Vinylbenzyl) Trimethylammonium Bis (Trifluoromethanesulfonimide)) Studied by Pyrolysis-GS / MS." Key Engineering Materials 887 (May 2021): 91–97. http://dx.doi.org/10.4028/www.scientific.net/kem.887.91.

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Over the past decades, significant advances have been made in the development and research of gas separation membranes based on ionic liquids (IL) and their polymer analogs (PIL) for membrane separation of "acid gases" such as CO2 and H2S from gas mixtures. Polymers containing various amino groups are of great interest for the selective separation of acid gases from gas mixtures, since ammonia and its derivatives are used in conventional purification. In this work, we have synthesized a monomeric ionic liquid based on 4 vinylbenzyl chloride with included triethylamine by the Menshutkin reactio

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22

Pan, Kai, Hui Liu, Zhijun Wang, et al. "Insights into Ionic Liquids for Flame Retardant: A Study Based on Bibliometric Mapping." Safety 9, no. 3 (2023): 49. http://dx.doi.org/10.3390/safety9030049.

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Fire is a typical disaster in the processing industry. Ionic liquids, as a type of green flame retardant, play an important role in process safety. In order to grasp the current research status, hotspots, and frontiers in the field of ionic liquids in flame retardancy, the bibliometric mapping method is applied to study the relevant literature in Web of Science datasets from 2000–2022 in this paper. The results show that the research on ionic liquids in flame retardancy is multidisciplinary and involves some disciplines such as energy science, material science, and environmental protection. Jo

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23

Song, Di, Yuqi Wang, Ching-Fai Yip, and Quan Zuo. "Depolymerization for polymers with heteroatom-containing main chain: mechanism and applications." Journal of Physics: Conference Series 2229, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2229/1/012008.

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Abstract With the flourishment of the polymer industry, many polymers have been produced and used. However, it has been acerbically criticized that most of the polymers, such as polyolefins, polyesters, cannot be naturally degraded or depolymerized, leading to polymer waste, which has exacerbated the growing global contamination. Therefore, it is essential to research and ameliorate depolymerization methods to diminish the polymer waste and recycle them. This article reviews a series of novel depolymerization methods in recent years, including pyrolysis, ionic liquids, hydrolysis, and biologic

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24

Barros, Marisa C. F., Ana C. F. Ribeiro, and Cecília I. A. V. Santos. "An Assessment of the Chemical Compatibility of Viton Fluoropolymers and Some Harsh Organic Liquid Mixtures." Processes 11, no. 7 (2023): 2088. http://dx.doi.org/10.3390/pr11072088.

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The molecular transport of a series of industrial solvent mixtures into O-rings of Viton fluoropolymers was studied. Sorption, diffusion, and permeation of the individual liquids toluene, cyclohexane, and methanol, and their binary and ternary mixtures, were evaluated from the solvent uptake using a gravimetric method. From the sorption results, the diffusion coefficients were calculated using Fick’s equation. A numerical method was employed to calculate the liquid concentration profiles in cylinder-shaped polymers. The desorption mechanism was also evaluated. The composition dependence of sor

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25

Xiao, Shuqin, Cong Liu, Lie Chen, Licheng Tan, and Yiwang Chen. "Liquid-crystalline ionic liquids modified conductive polymers as a transparent electrode for indium-free polymer solar cells." Journal of Materials Chemistry A 3, no. 44 (2015): 22316–24. http://dx.doi.org/10.1039/c5ta06810j.

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26

Chremos, Alexandros, and Jack F. Douglas. "Influence of Branching on the Configurational and Dynamical Properties of Entangled Polymer Melts." Polymers 11, no. 6 (2019): 1045. http://dx.doi.org/10.3390/polym11061045.

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We probe the influence of branching on the configurational, packing, and density correlation function properties of polymer melts of linear and star polymers, with emphasis on molecular masses larger than the entanglement molecular mass of linear chains. In particular, we calculate the conformational properties of these polymers, such as the hydrodynamic radius R h , packing length p, pair correlation function g ( r ) , and polymer center of mass self-diffusion coefficient, D, with the use of coarse-grained molecular dynamics simulations. Our simulation results reproduce the phenomenology of s

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27

Kempis, Florian, and Jeanette Orlowsky. "Characterization of the Chemical Resistance of Two Non-Vulcanized Styrene–Butadiene Rubbers (SBR)." Materials 17, no. 12 (2024): 2925. http://dx.doi.org/10.3390/ma17122925.

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The objective of this series of tests is to characterize the alkali and water resistance of two non-vulcanized formulations based on co-polymerizing styrene–butadiene rubbers (SBR1 and SBR2). The relative merits of the two polymer systems as impregnating agents for alkali-resistant glass reinforcement in cementitious binders are assessed. For this purpose, polymer films were synthesized and then chemically conditioned for up to half a year at temperatures of 23 °C and 50 °C in sodium hydroxide and potassium hydroxide solutions as well as in salt and distilled water. Changes in mass, tensile st

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28

Kanematsu, Hideyuki, Atsuya Oizumi, Takaya Sato, et al. "Biofilm Formation of a Polymer Brush Coating with Ionic Liquids Compared to a Polymer Brush Coating with a Non-Ionic Liquid." Coatings 8, no. 11 (2018): 398. http://dx.doi.org/10.3390/coatings8110398.

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N,N-diethyl-N-(2-methancryloylethy)-N-methylammonium bis(trifluoromethylsulfonyl) imide polymer (DEMM-TFSI) brush coated specimens (substrate: glasses) and a liquid ion type of polymer brush coating were investigated for their antifouling effect on biofilms. Biofilms were produced by two kinds of bacteria, E. coli and S. epidermidis. They were formed on specimens immersed into wells (of 12-well plates) that were filled with culture liquids and bacteria. The biofilm formation was observed. Also, brush coated specimens and glass substrates were investigated in the same way. DEMM polymer brush co

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Eshetu, Gebrekidan Gebresilassie, David Mecerreyes, Maria Forsyth, Heng Zhang, and Michel Armand. "Polymeric ionic liquids for lithium-based rechargeable batteries." Molecular Systems Design & Engineering 4, no. 2 (2019): 294–309. http://dx.doi.org/10.1039/c8me00103k.

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Divya, Velpula, and M. V. Sangaranarayanan. "Electrodeposition of Polymer Nanostructures using Three Diffuse Double Layers: Polymerization beyond the Liquid/Liquid Interfaces." Electrochemical Energy Technology 4, no. 1 (2018): 6–20. http://dx.doi.org/10.1515/eetech-2018-0002.

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Abstract Nanostructured conducting polymers have received immense attention during the past few decades on account of their phenomenal usefulness in diverse contexts, while the interface between two immiscible liquids is of great interest in chemical and biological applications. Here we propose a novel Electrode(solid)/Electrolyte(aqueous)/Electrolyte(organic) Interfacial assembly for the synthesis of polymeric nanostructures using a novel concept of three diffuse double layers. There exist remarkable differences between the morphologies of the polymers synthesized using the conventional elect

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31

Pashayeva, Ziyarat Naghi, Minavar Jafar İBragimova, and Fakhriyya Mohammad Abdullayeva. "Possibilities For Using Ionic Liquids In The Polymerization Process." Journal of Physics: Conference Series 2834, no. 1 (2024): 012185. http://dx.doi.org/10.1088/1742-6596/2834/1/012185.

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Abstract The paper investigates the polymerization of various methacrylate esters in different ionic liquids (ILs) and compares the results with those obtained in traditional organic solvents, particularly benzene. The study highlights the influence of ILs on the polymerization process, focusing on factors such as polymer yield, average molecular weight, and thermal stability. The results indicate a relatively higher degree of polymerization in ILs compared to benzene under identical conditions. Additionally, polymers synthesized in ILs exhibit higher average molecular weights and thermal stab

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Yerushalmi-Rozen, R., and J. Klein. "Stabilisation of Thin Liquid Films by Polymer Additives." Cellular Polymers 15, no. 2 (1996): 79–89. http://dx.doi.org/10.1177/0262489319961502001.

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Stability of thin films of non-volatile liquids is a key issue in a variety of applications. Often a film is forced to spread on a substrate which is not wetted by the liquid. The film then ruptures within minutes and dewets. Common methods for achieving stability include the introduction of surface-active low molecular weight agents, or modification of the chemistry of the substrate. We describe here a mechanism for suppressing the rupture of the films by surface-attached polymers together with trace amounts of free polymers in the bulk of the film. The effect may have a kinetic origin, which

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Yerushalmi-Rozen, R., and J. Klein. "Stabilisation of Thin Liquid Films by Polymer Additives." Progress in Rubber and Plastics Technology 12, no. 1 (1996): 30–40. https://doi.org/10.1177/147776069601200103.

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Stability of thin films of non-volatile liquids is a key issue in a variety of applications. Often a film is forced to spread on a substrate which is not wetted by the liquid. The film then ruptures within minutes and dewets. Common methods for achieving stability include the introduction of surface-active low molecular weight agents, or modification of the chemistry of the substrate. We describe here a mechanism for suppressing the rupture of the films by surface- attached polymers together with trace amounts of free polymers in the bulk of the film. The effect may have a kinetic origin, whic

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34

Ravi Kumar, Ravi Kumar, and Dr T. H. N. Singh Dr. T. H. N. Singh. "Applicability of Propagation of Ultrasound Waves for Liquids and Glasses Materials." Journal of Advances and Scholarly Researches in Allied Education 15, no. 4 (2018): 536–41. https://doi.org/10.29070/1vxnae78.

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The propagation of low-intensity ultrasound in polymers, acting as a high-frequency dynamic mechanical deformation, can be successfully used to monitor changes in the modulus of polymers associated with glass transition, crystallization, cross-linking, and other chemical and physical phenomena related to changes in the viscoelastic behavior, such as gelation phenomena. The velocity of sound is related to the polymer storage modulus and density, whereas the absorption of ultrasonic waves is related to the energy dissipation in the material and, therefore, to the loss modulus. Accordingly, ultra

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Alashkar, Adnan, Amani Al-Othman, Muhammad Tawalbeh, and Muhammad Qasim. "A Critical Review on the Use of Ionic Liquids in Proton Exchange Membrane Fuel Cells." Membranes 12, no. 2 (2022): 178. http://dx.doi.org/10.3390/membranes12020178.

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This work provides a comprehensive review on the incorporation of ionic liquid (ILs) into polymer blends and their utilization as proton exchanges membranes (PEM). Various conventional polymers that incorporate ILs are discussed, such as Nafion, poly (vinylidene fluoride), polybenzimidazole, sulfonated poly (ether ether ketone), and sulfonated polyimide. The methods of synthesis of IL/polymer composite membranes are summarized and the role of ionic liquids as electrolytes and structure directing agents in PEM fuel cells (PEMFCs) is presented. In addition, the obstacles that are reported to imp

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Navarra, Maria Assunta, Matteo Palluzzi, Akiko Tsurumaki, and Sergio Brutti. "Electrochemical storage systems: Safer and more sustainable batteries." EPJ Web of Conferences 310 (2024): 00005. http://dx.doi.org/10.1051/epjconf/202431000005.

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Lithium-ion batteries (LIBs) are the predominant power source for portable electronic devices, and in recent years their use has extended to higherenergy and larger devices. However, to satisfy the stringent requirements of safety and energy density, further material advancements are required. Due to the inherent flammability of organic solvent-based liquid electrolytes and their instability against materials utilized in high-energy systems, a transition to alternative ionconductive media becomes urgent. In this paper, some possible solutions, shifting from molecular liquids to a class of mate

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Liu, Yafei, Yiyu Shi, Yan Cui, Fen Zhao, and Mindong Chen. "Design and Preparation of Imidazole Ionic Liquid-Based Magnetic Polymers and Its Adsorption on Sunset Yellow Dye." Materials 15, no. 7 (2022): 2628. http://dx.doi.org/10.3390/ma15072628.

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Magnetic polymers are often used as loading materials for ionic liquids because of their excellent magnetic separation properties. In this study, a novel imidazolium-based ionic liquid-modified magnetic polymer was synthesized by suspension polymerization and grafting, denoted as γ-Fe2O3@GMA@IM, and this magnetic polymer was used for the adsorption of the acid dye FCF. The magnetic polymer was characterized by SEM, FTIR, XRD, VSM and TGA. These techniques were used to reveal the overall physical properties of magnetic polymers, including the presence of morphology, functional groups, crystalli

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Aminabhavi, Tejraj M., Sujata F. Harlapur, and J. Dale Ortego. "Molecular Transport of Organic Esters into Copolymeric and Terpolymeric Membranes." Engineering Plastics 4, no. 4 (1996): 147823919600400. http://dx.doi.org/10.1177/147823919600400402.

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Solvent uptake into thin fluoropolymer membranes (FC-2179 and FLS-2650) has been measured as a function of temperature using a sorption gravimetric method. Diffusion coefficients, percent mass uptake, and apparent activation energies for the process of diffusion and permeation have been obtained. Both polymers exhibit anomalous diffusion behaviour and this is due to specific interactions between polymer chain segments and esters. Molecular migration of esters into the dense membrane materials showed a dependence on polymer morphology and/or their chemical structures. The liquid concentration p

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Aminabhavi, Tejraj M., Sujata F. Harlapur, and J. Dale Ortego. "Molecular Transport of Organic Esters into Copolymeric and Terpolymeric Membranes." Polymers and Polymer Composites 4, no. 4 (1996): 225–33. http://dx.doi.org/10.1177/096739119600400402.

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Solvent uptake into thin fluoropolymer membranes (FC-2179 and FLS-2650) has been measured as a function of temperature using a sorption gravimetric method. Diffusion coefficients, percent mass uptake, and apparent activation energies for the process of diffusion and permeation have been obtained. Both polymers exhibit anomalous diffusion behaviour and this is due to specific interactions between polymer chain segments and esters. Molecular migration of esters into the dense membrane materials showed a dependence on polymer morphology and/or their chemical structures. The liquid concentration p

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Rynkowska, Edyta, Kateryna Fatyeyeva, and Wojciech Kujawski. "Application of polymer-based membranes containing ionic liquids in membrane separation processes: a critical review." Reviews in Chemical Engineering 34, no. 3 (2018): 341–63. http://dx.doi.org/10.1515/revce-2016-0054.

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Abstract The interest in ionic liquids, particularly in polymerizable ionic liquids, is motivated by their unique properties, such as good thermal stability, negligible vapor pressure, and wide electrochemical window. Due to these features ionic liquids were proposed to be used in the membrane separation technology. The utilization of conventional ionic liquids is, however, limited by their release from the membrane during the given separation process. Therefore, the incorporation of polymerizable ionic liquids may overcome this drawback for the industrial application. This work is a comprehen

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Dealy, John M. "Rheology of Molten Polymers." MRS Bulletin 16, no. 8 (1991): 24–26. http://dx.doi.org/10.1557/s0883769400056281.

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The term “polymeric liquids” is used to describe both solutions of polymers and molten polymers. All polymeric liquids exhibit non-Newtonian flow behavior, including a shear stress-dependent viscosity and elasticity. However, concentrated solutions and melts of polymers whose molecular weights exceed a certain critical value (the “critical molecular weight for entanglement,” Mc) exhibit quite remarkable deviations from classical fluid behavior, especially marked elasticity. Among the remarkable rheological phenomena exhibited by these materials are elastic recoil and flow-induced an-isotropy.

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Romm, Freddy A., and Oleg L. Figovsky. "Statistical polymer method: Modeling of macromolecules and aggregates with branching and crosslinking, formed in random processes." Discrete Dynamics in Nature and Society 2, no. 3 (1998): 203–8. http://dx.doi.org/10.1155/s1026022698000181.

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The statistical polymer method is based on the consideration of averaged structures of all possible macromolecules of the same weight. One has derived equations allowing evaluation of all additive parameters of macromolecules and their systems. The statistical polymer method allows modeling of branched crosslinked macromolecules and their systems in equilibrium or non-equilibrium. The fractal consideration of statistical polymer allows modeling of all kinds of random fractal and other objects studied by fractal theory. The statistical polymer method is applicable not only to polymers but also

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Venerus, David C. "Modeling Diffusion-Induced Bubble Growth in Polymer Liquids." Cellular Polymers 22, no. 2 (2003): 89–102. http://dx.doi.org/10.1177/026248930302200202.

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Accurate modeling of diffusion-induced bubble growth is essential for the development of efficient polymer foaming processes. Consequently, a large number of transport models of this complex phenomena have been formulated. In most previous studies, one or more simplifying approximations have been invoked to reduce mathematical complexity. In this paper, we present and compare several models of bubble growth in liquids and examine the effects blowing agent concentration, liquid viscosity and elasticity on bubble growth dynamics. In addition, we compare predicted and measured bubble growth behav

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Huang, Qian, and Ole Hassager. "Polymer liquids fracture like solids." Soft Matter 13, no. 19 (2017): 3470–74. http://dx.doi.org/10.1039/c7sm00126f.

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Stokes, Jason R., and David V. Boger. "Mixing of viscous polymer liquids." Physics of Fluids 12, no. 6 (2000): 1411–16. http://dx.doi.org/10.1063/1.870392.

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FREEMANTLE, MICHAEL. "DESIGNER LIQUIDS IN POLYMER SYSTEMS." Chemical & Engineering News 82, no. 18 (2004): 26–29. http://dx.doi.org/10.1021/cen-v082n018.p026.

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Couchman, P. R., and K. E. Van Ness. "Surface tension of polymer liquids." Polymer Engineering and Science 27, no. 5 (1987): 324–27. http://dx.doi.org/10.1002/pen.760270504.

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Long, Timothy E., Yossef A. Elabd, and Jiayin Yuan. "Ionic Liquids in Polymer Design." Macromolecular Rapid Communications 37, no. 14 (2016): 1105. http://dx.doi.org/10.1002/marc.201600255.

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Bernardo, Paola, and Gabriele Clarizia. "Heuristic Guidelines for Developing Polymer/Ionic Liquid Blend Membranes." Polymers 17, no. 4 (2025): 439. https://doi.org/10.3390/polym17040439.

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In the search of increasingly effective materials for enhancing gas transport in membranes, the incorporation of ionic liquids within a polymeric matrix is attracting a lot of interest in the development of advanced membranes to be applied to CO2 separation. An analysis of the open literature focusing on polymer/IL blend membranes, in which a polymer matrix hosts an ionic liquid, was carried out, showing the effects of different composition dependences on CO2 permeability. The peculiar permeability profiles were attributed to the specific interactions established between the ionic liquid and t

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Bair, Scott. "Elastohydrodynamic Film Forming With Shear Thinning Liquids." Journal of Tribology 120, no. 2 (1998): 173–78. http://dx.doi.org/10.1115/1.2834405.

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Recent advances in high pressure rheometry have elucidated the shear response of liquid lubricants at the high shear stress characteristic of the traction generating region of lubricated concentrated contacts. These new measurement techniques are used to characterize the shear response of shear thinning liquids at low (<10 MPa) shear stress. A recently developed numerical scheme for calculating film thickness is extended to accommodate sliding. Film thickness predictions are compared with measurements using shear thinning liquids including a polymer/mineral oil blend, a highly elastic liqui

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