Poly(ionic liquid)s-based polyurethane blends: effect of polyols structure and ILs counter cations in CO2 sorption performance of PILs physical blends

Luz, Murilo da; Dias, Guilherme A. D.; Zimmer, Henrique; Bernard, Franciele L.; Nascimento, Jaílton Ferreira do; Einloft, Sandra

doi:10.1007/s00289-021-03799-3

Cited by 4 publications

(3 citation statements)

References 77 publications

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“…In addition, CO 2 has high solubility in IL; however, pure IL has high viscosity and high cost. The polymer-IL thin film not only reduces the high-cost problem in CO 2 absorption, but also improves the absorption capacity and rate [102,103]. Some ILs have excellent biocompatibility and antibacterial properties, which means that the PU-IL materials can be applied in the biomedical field in vivo or in vitro [104,105].…”

Section: Applications Of Pu-ilmentioning

confidence: 99%

“…The influence of anion and cation structures of IL on the absorption of CO 2 has also been studied. Luz et al [103] prepared two different blends of cationic IL and PU, and the results showed that imidazolium cation was more conducive to the absorption of CO 2 than phosphonium cation. Morozova et al [146] prepared ionic PUs using four different ionic diols with thirteen different counterions and studied the effect of diisocyanate monomers and cation/anion structures on the CO 2 -capturing ability.…”

Section: Carbon Dioxide Capturementioning

confidence: 99%

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Polyurethanes Modified by Ionic Liquids and Their Applications

Wang

Zhao

Zhang

et al. 2023

IJMS

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Polyurethane (PU) refers to the polymer containing carbamate groups in its molecular structure, generally obtained by the reaction of isocyanate and alcohol. Because of its flexible formulation, diverse product forms, and excellent performance, it has been widely used in mechanical engineering, electronic equipment, biomedical applications, etc. Through physical or chemical methods, ionic groups are introduced into PU, which gives PU electrical conductivity, flame-retardant, and antistatic properties, thus expanding the application fields of PU, especially in flexible devices such as sensors, actuators, and functional membranes for batteries and gas absorption. In this review, we firstly introduced the characteristics of PU in chemical and microphase structures and their related physical and chemical performance. To improve the performance of PU, ionic liquids (ILs) were applied in the processing or synthesis of PU, resulting in a new type of PU called ionic PU. In the following part of this review, we mainly summarized the fabrication methods of IL-modified PUs via physical blending and the chemical copolymerization method. Then, we summarized the research progress of the applications for IL-modified PUs in different fields, including sensors, actuators, transistors, antistatic films, etc. Finally, we discussed the future development trends and challenges faced by IL-modified PUs.

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Section: Applications Of Pu-ilmentioning

confidence: 99%

Section: Carbon Dioxide Capturementioning

confidence: 99%

Polyurethanes Modified by Ionic Liquids and Their Applications

Wang

Zhao

Zhang

et al. 2023

IJMS

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“…Meanwhile, the existence of CO 2 reduces the exploitation value of natural gas, affects the combustion efficiency of methane, increases cost, and leads to pipeline corrosion [5,6]. Because of this, recovering carbon dioxide from industrial waste gases is crucial for both future use and environmental considerations [7]. Amine absorption is a cutting-edge technology for removing CO 2 , but it has high capital and operating costs, a sophisticated operating method, and will negatively impact the environment [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polyimide/Ionic Liquid Hybrid Membrane for CO2/CH4 Separation

Du,

Zhao,

et al. 2024

Polymers

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Imidazole ionic liquids (ILs) have good affinity and good solubility for carbon dioxide (CO2). Such ionic liquids, combined with polyimide membrane materials, can solve the problem that, today, CO2 is difficult to separate and recover. In this study, the ionic liquid (IL) of 1-ethyl-3-methylimidazolium tetrafluoroborate (IL1), 1-pentyl-3-methylimidazolium tetrafluoroborate (IL2), 1-octyl-3-methylimidazolium tetrafluoroborate (IL3), and 1-dodecylimidazolium tetrafluoroborate (IL4) with different contents were added to a polyimide matrix, and a series of polyimide membranes blended with ionic liquid were prepared using a high-speed mixer. The mechanical properties and gas separation permeability of the membranes were investigated. Among them, the selectivity of the PI/IL3 membrane for CO2/CH4 was 180.55, which was 2.5 times higher than the PI membrane, and its CO2 permeability was 16.25 Barrer, which exceeded the Robeson curve in 2008; the separation performance of the membrane was the best in this work.

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Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

Li,

Yan,

Texter

2024

Chem. Rev.

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The breadth and importance of polymerized ionic liquids (PILs) are steadily expanding, and this review updates advances and trends in syntheses, properties, and applications over the past five to six years. We begin with an historical overview of the genesis and growth of the PIL field as a subset of materials science. The genesis of ionic liquids (ILs) over nano to meso lengthscales exhibiting 0D, 1D, 2D, and 3D topologies defines colloidal ionic liquids, CILs, which compose a subclass of PILs and provide a synthetic bridge between IL monomers (ILMs) and micro to macroscale PIL materials. The second focus of this review addresses design and syntheses of ILMs and their polymerization reactions to yield PILs and PIL-based materials. A burgeoning diversity of ILMs reflects increasing use of nonimidazolium nuclei and an expanding use of step-growth chemistries in synthesizing PIL materials. Radical chain polymerization remains a primary method of making PILs and reflects an increasing use of controlled polymerization methods.Step-growth chemistries used in creating some CILs utilize extensive cross-linking. This cross-linking is enabled by incorporating reactive functionalities in CILs and PILs, and some of these CILs and PILs may be viewed as exotic cross-linking agents. The third part of this update focuses upon some advances in key properties, including molecular weight, thermal properties, rheology, ion transport, self-healing, and stimuli-responsiveness. Glass transitions, critical solution temperatures, and liquidity are key thermal properties that tie to PIL rheology and viscoelasticity. These properties in turn modulate mechanical properties and ion transport, which are foundational in increasing applications of PILs. Cross-linking in gelation and ionogels and reversible step-growth chemistries are essential for self-healing PILs. Stimuli-responsiveness distinguishes PILs from many other classes of polymers, and it emphasizes the importance of segmentally controlling and tuning solvation in CILs and PILs. The fourth part of this review addresses development of applications, and the diverse scope of such applications supports the increasing importance of PILs in materials science. Adhesion applications are supported by ionogel properties, especially crosslinking and solvation tunable interactions with adjacent phases. Antimicrobial and antifouling applications are consequences of the cationic nature of PILs. Similarly, emulsion and dispersion applications rely on tunable solvation of functional groups and on how such groups interact with continuous phases and substrates. Catalysis is another significant application, and this is an historical tie between ILs and PILs. This component also provides a connection to diverse and porous carbon phases templated by PILs that are catalysts or serve as supports for catalysts. Devices, including sensors and actuators, also rely on solvation tuning and stimuliresponsiveness that include photo and electrochemical stimuli. We conclude our view of applications with 3D printi...

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Poly(ionic liquid)s-based polyurethane blends: effect of polyols structure and ILs counter cations in CO2 sorption performance of PILs physical blends

Cited by 4 publications

References 77 publications

Polyurethanes Modified by Ionic Liquids and Their Applications

Polyurethanes Modified by Ionic Liquids and Their Applications

Preparation of Polyimide/Ionic Liquid Hybrid Membrane for CO2/CH4 Separation

Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

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