Imidazolium-Based Poly(Ionic Liquid) Block Copolymers

Coupillaud, Paul; Taton, Daniel

doi:10.1007/978-3-662-44903-5_4

Cited by 5 publications

(5 citation statements)

References 107 publications

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“…Known morphologies in aqueous media of linear poly(ionic liquid)s include core–corona micelles, micelle aggregates, vesicles, cubosomes, and worm micelles. For example, core–corona micelles are formed by a linear imidazolium bromide derivative of poly(methacrylic acid) with poly( N -isopropylacrylamide) blocks or linear polyacrylamide (PAM) and poly(methacrylic acid) (PAAM) with bromide (Br – ) anions. − Anion exchange in PAM or PAAM poly(ionic liquid)s from Br – to Tf 2 N – leads to the formation of micellar aggregates due to the increasing hydrophobicity of the compounds. Linear poly(ionic liquid)s based on N -imidazole-3-propylmethacrylamide ionic monomers and methyl and ethyl alkyl chains form onion-like or cylindrical vesicles with sizes ranging from 60 to 100 nm, depending on the alkyl chain length .…”

Section: Introductionmentioning

confidence: 99%

“…Poly(ionic liquid)s based on hyperbranched polyesters (HBP-ILs) with different types of peripheral ionic liquid groups show high thermal stability and low viscosity even for high molecular weight of HBP-ILs which can be synthesized in one-step reaction. ,− The majority of these researches considers aprotic amphiphilic HBP-ILs, and few existing reports describe either synthesis or properties of cationic HBP-ILs. − ,, The assembly of HBP-ILs in aqueous media and the formation of functional nanomaterials based on HBP-ILs are a complex process that depends on the poly(ionic liquid)s architecture, chemical composition, and a balance of intramolecular and intermolecular interactions. − Moreover, the assembly behavior of branched poly(ionic liquid)s is rarely analyzed especially in variable environmental conditions. − Some examples include the synthesis of HBP-ILs based on a hyperbranched poly(3-ethyl-3-hydroxymethyloxetane) core with an inner imidazolium cation shell and outer nonpolar n -alkyl shell, hyperbranched poly(glycidol) terminated with N -methylimidazole, or amine-terminated poly(amido-amine) dendrimers …”

Section: Introductionmentioning

confidence: 99%

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Thermally Responsive Hyperbranched Poly(ionic liquid)s: Assembly and Phase Transformations

et al. 2018

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A library of linear and branched amphiphilic poly(ionic liquid)s based on hydrophobic cores and peripheral thermally sensitive shells was synthesized and studied with regard to their ability to form stimuli-responsive, organized assemblies in aqueous media. The thermally responsive derivatives of poly(ionic liquid)s were synthesized by neutralizing 32 terminal carboxyl groups of functionalized polyester cores by amine-terminated poly(N-isopropylacrylamide)s (PNIPAM) (50% and 100%). We observed that these hyperbranched poly(ionic liquid)s possessed a narrow low critical solution transition (LCST) window with LCST for hyperbranched compounds being consistently lower than that for linear PNIPAM containing counterparts. We found that the poly(ionic liquid)s form spherical micellar assemblies with diverse morphologies, such as micelles and their aggregates, depending on the terminal compositions with reduced sizes for hyperbranched poly(ionic liquid)s. Increasing temperature above LCST promoted formation of network-like aggregates, large vesicles, and spherical micelles. Moreover, all PNIPAM-terminated compounds exhibited distinct unimolecular prolate nanodomain morphology in contrast to common spherical domains of initial cores. We proposed a multilength scale organized morphology to describe the thermoresponsive poly(ionic liquid)s micellar assemblies and discussed their morphological transformations during phase transitions associated with changes in hydrophobic–hydrophilic balance of poly(ionic liquid)s with distinct hydrophobic cores and variable peripheral shells.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermally Responsive Hyperbranched Poly(ionic liquid)s: Assembly and Phase Transformations

et al. 2018

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“…Overall, post polymerization techniques of functional precursor polymers are often advantageous in terms of the final characterization of the resulting polymer. Running gel permeation chromatography on the final copolymer can be challenging due to interactions between the ionic liquid moiety and the columns, however, the pre‐polymer can often be characterized prior to the coupling with ease . The downside to the post polymerization strategy is that it can be very challenging to obtain 100 % coupling of the polymer reactive sites, resulting in potentially detrimental unreacted functional sites on the polymer.…”

Section: Resultsmentioning

confidence: 99%

Nitroxide Mediated Polymerization of 1‐(4‐vinylbenzyl)‐3‐butylimidazolium Ionic Liquid Containing Homopolymers and Methyl Methacrylate Copolymers

2018

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The synthesis of well‐defined imidazolium‐based poly(ionic liquid)s (PILs) copolymers by nitroxide mediated polymerization (NMP) is reported. The viability of three different synthetic pathways to achieve poly[1‐(4‐vinylbenzyl)‐3‐butylimidazolium bis(trifluoromethylsulphonyl)‐imide‐co‐methyl methacrylate] (poly(VBBI+TFSI‐‐co‐MMA)) was explored including direct polymerization of the ionic liquid monomer (VBBI+TFSI‐) and post functionalization of precursor polymer poly(4‐vinylbenzyl imidazole‐co‐methyl methacrylate). PILs with well‐controlled molecular weight and low dispersity (trueMw¯/trueMn¯ < 1.3) were obtained via all routes. A full synthetic, kinetic, and compositional comparison between methods is reported. These results illustrate an effective route for the synthesis of well‐defined, pseudo‐living functional PIL‐methacryalte copolymers with tunable properties through potential methacrylate monomer substitution.

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“…T g 's and ionic conductivities were examined. The T g 's and log(σ) of the AmC Miller and co-workers 97 introduced highly cross-linked ionene networks derived from PTMP, pentaeryhthritol tetrakis(3-mercaptoproprionate), and 1,3-bishexenyl imidazolium salts (25). These networks were formed by thiol−ene click chemistry, where the thiol groups add across the hexenyl double bonds with activation provided by UV-irradiation.…”

Section: Cross-linkingmentioning

confidence: 99%

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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Imidazolium-Based Poly(Ionic Liquid) Block Copolymers

Cited by 5 publications

References 107 publications

Thermally Responsive Hyperbranched Poly(ionic liquid)s: Assembly and Phase Transformations

Thermally Responsive Hyperbranched Poly(ionic liquid)s: Assembly and Phase Transformations

Nitroxide Mediated Polymerization of 1‐(4‐vinylbenzyl)‐3‐butylimidazolium Ionic Liquid Containing Homopolymers and Methyl Methacrylate Copolymers

Polymerized and Colloidal Ionic Liquids─Syntheses and Applications

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