Syntheses, characterizations and functions of cationic polyethers with imidazolium-based ionic liquid moieties

Hayano, Shigetaka; Ota, Keisuke; Ban, Hoang The

doi:10.1039/c7py01985h

Cited by 14 publications

(8 citation statements)

References 45 publications

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“…Both 13 C NMR and 1 H NMR results demonstrated the synthesis of ECO-based ionomers with the grafting rate of 46.8% (Figure S1B,C). Our choice of ECO-based ionomers was mainly based on two considerations: (1) ECO was a renewable and biomass-derived elastomer, which has been brought into the market; (2) the chloromethyl group of ECO provided a highly reactive site to synthesize water-soluble ionomers …”

Section: Resultsmentioning

confidence: 99%

“…Our choice of ECObased ionomers was mainly based on two considerations: (1) ECO was a renewable and biomass-derived elastomer, which has been brought into the market; (2) the chloromethyl group of ECO provided a highly reactive site to synthesize watersoluble ionomers. 38 Freeze-drying was utilized to process DNA plastics (Figure 1B). First, supersoft DNA gels were prepared and conformed to the shape of a mold.…”

Section: ■ Resultsmentioning

confidence: 99%

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Sustainable Bioplastic Made from Biomass DNA and Ionomers

et al. 2021

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Plastics play important roles in modern life and currently the development of plastic recycling is highly demanding and challenging. To relieve this dilemma, one option is to develop new sustainable bioplastics that are compatible with the environment over the whole material life cycle. We report a sustainable bioplastic made from natural DNA and biomass-derived ionomers, termed as DNA plastics. The sustainability involves all aspects of the production, use, and end-of-life options of DNA plastics: (1) the raw materials are derived from biorenewable resources; (2) the water-processable strategy is environmentally friendly, not involving high-energy consumption, the use of organic solvents, and the production of byproducts; (3) recyclable and nondestructive use is achieved to significantly prolong the service lifetime of the plastics; and (4) the disposal of waste plastics follows two green routes including the recycling of waste plastics and enzyme-triggered controllable degradation under mild conditions. Besides, DNA plastics can be “aqua-welded” to form arbitrary designed products such as a plastic cup. This work provides a solution to transform biobased hydrogel to bioplastic and demonstrates the closed-loop recycling of DNA plastics, which will advance the development of sustainable materials.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Resultsmentioning

confidence: 99%

Sustainable Bioplastic Made from Biomass DNA and Ionomers

et al. 2021

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“…As a burgeoning interdisciplinary topic, PILs are attracting increasing interest due to the combination of the unique properties of IL with the macromolecular architecture and creating new properties and functions . Recently, a series of PIL materials have been synthesized by introducing functional cationic and anionic IL groups into dynamic macromolecular polymeric architectures which have broadened PIL properties, structures, functionalities and applications . PILs have been widely used in catalysis due to the function‐designability and eco‐friendly quality .…”

Section: Introductionmentioning

confidence: 99%

“…[26][27][28] Recently, a series of PIL materials have been synthesized by introducing functional cationic and anionic IL groups into dynamic macromolecular polymeric architectures which have broadened PIL properties, structures, functionalities and applications. [29][30][31][32] PILs have been widely used in catalysis due to the functiondesignability and eco-friendly quality. [33][34][35] For example, Ali Pourjavadi and cooperators synthesized a dual acidic heterogeneous organocatalyst by copolymerization of acidic ionic liquid monomer ([VSim][HSO 4 ]) and liquid crosslinker (1,4-butanediyl-3,3-bis-l-vinyl imidazolium dihydrogen sulfate).…”

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confidence: 99%

Functional mesoporous poly (ionic liquid) derived from P123: From synthesis to catalysis and alkylation of styrene and o‐xylene

Wang

Sheng

Zhou

et al. 2019

Applied Organom Chemis

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A novel strategy was proposed for the fabrication of high‐performance acidic mesoporous poly ionic liquids catalyst. In this work, mesoporous poly ionic liquids (MPILs) were synthesized with P123 (PEO20PPO70PEO20) served as pore‐forming agent. Then, MPILs were treated with PW3− anion exchange, thereby fabricating PW/MPIL‐S(x). MPIL and PW/MPIL‐S(x) were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), Thermogravimetric analysis (TA), N2 adsorption–desorption and Fourier transform infrared (FT‐IR) spectra and X‐ray photoelectron spectroscopy (XPS) spectra. The effect of solvent and concentration of P123 on the morphology and mesoporous structure of MPILs were investigated systematically. And the results show that MPILs were featured with mesoporous channel structure, high surface area (up to 737 m2/g) and large pore volumes (1.16 cm3/g), which benefit heterogeneous phase reaction (such as, alkylation of styrene with o‐xylene). In the alkylation reaction, under optimal reaction conditions, the catalyst PW/MPIL‐THF (4.0 g) shows high conversion of styrene (100%) and PXE yield (96.21%), demonstrating the excellent catalytic activities. Furthermore, PW/MPIL‐S(x) are easy to be separated from the catalytic system by filtration and show no obvious decrease in catalytic activity after 6 cycle runs. The obtained PW/MPIL‐S(x) catalyst exhibit high thermal and mechanical stability as well, indicating extensive application in high temperature acidic catalysis. This work might open up a new method for the synthesizing of porous polymer catalysts in the future.

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“…The modular nature of ImIPs synthesis allows for tailor-making their structures and properties through judicious selection of building units at the molecular level, which provides tremendous opportunities to tune their emission color by the incorporation of different luminescent cationic groups into the polymer backbones. − Particularly, ImIPs show dominant light absorption in the UV region, but their emission occurs in the range of visible light with the single-color peaks, which are ideal characteristics as invisible security ink. Because the interactions between host cationic backbones and counter anions could produce detectable luminescent responses, their fluorescent intensity could be tuned rapidly and reversibly through anionic exchange. − The attractive fluorescence sensing properties could provide a system of chemical encryption, in which ImIPs are used as fluorescent ink, and the anions for fluorescent quenching serve as encryption algorithm. By further encrypting information using these anions, recorded information is impossible to mimic and counterfeit unless original information is revealed using an appropriate decryption reagent.…”

Section: Introductionmentioning

confidence: 99%

Water-Soluble and Low-Toxic Ionic Polymer Dots as Invisible Security Ink for MultiStage Information Encryption

Chen

Cui

Tong

et al. 2018

ACS Appl. Mater. Interfaces

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Nanodots are attractive stimuli-responsive luminescence materials for anti-counterfeiting and information encryption. However, their applications are limited by low water solubility and single-mode information identification by naked eyes under UV light illumination. Herein, we report one type of new nanodots, main-chain imidazoliumbased ionic polymer dots (IPDs). There is no edge effect in IPDs, and the ionic groups are homogenously distributed in the entire dot. IPDs exhibit high water solubility, good stability, narrow size distribution, low toxicity, and exceptional optical performance without additional modification. Written information using aqueous IPD solution is invisible in natural light, but can be recognized by a portable UV lamp. Moreover, they can be further encrypted and decrypted using easily available and nontoxic sodium carbonate and acetic acid, respectively. The encrypted information is invisible in natural light and/or UV light. This study provides a new prospect for high-level data recording and security protection by using water-soluble IPDs as invisible security ink.

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Syntheses, characterizations and functions of cationic polyethers with imidazolium-based ionic liquid moieties

Abstract: Cationic polyethers with ionic liquid groups are characterized with deliquescence, ionic conductivity and miscibility in ionic liquid.

Cited by 14 publications

References 45 publications

Sustainable Bioplastic Made from Biomass DNA and Ionomers

Sustainable Bioplastic Made from Biomass DNA and Ionomers

Functional mesoporous poly (ionic liquid) derived from P123: From synthesis to catalysis and alkylation of styrene and o‐xylene

Water-Soluble and Low-Toxic Ionic Polymer Dots as Invisible Security Ink for MultiStage Information Encryption

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