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Choi J, Choi K, Kwon Y, Kim D, Yoo Y, Im SG, Koh DY. Ultrathin organosiloxane membrane for precision organic solvent nanofiltration. Nat Commun 2024; 15:2800. [PMID: 38555289 PMCID: PMC10981765 DOI: 10.1038/s41467-024-47115-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
Promising advances in membrane technology can lead to energy-saving and eco-friendly solutions in industrial sectors. This work demonstrates a highly selective membrane with ultrathin and highly interconnected organosiloxane polymer nanolayers by initiated chemical vapor deposition to effectively separate solutes within the molecular weight range of 150-300 g mol-1. We optimize the poly(1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane) membrane by adjusting both the thickness of the selective layer and the pore sizes of its support membranes. Notably, the 29 nm selective layer imparts a uniformly narrow molecular sieving property, providing a record-high solute-solute selectivity of 39.88 for different-sized solutes. Furthermore, a solute-solute selectivity of 11.04 was demonstrated using the real-world active pharmaceutical ingredient mixture of Acyclovir and Valacyclovir, key components for Herpes virus treatment, despite their molecular weight difference of less than 100 g mol-1. The highly interconnected membrane is expected to meet rigorous requirements for high-standard active pharmaceutical ingredient separation.
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Affiliation(s)
- Jihoon Choi
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Keonwoo Choi
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - YongSung Kwon
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Daehun Kim
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Youngmin Yoo
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Dong-Yeun Koh
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Uchida J, Soberats B, Gupta M, Kato T. Advanced Functional Liquid Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109063. [PMID: 35034382 DOI: 10.1002/adma.202109063] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Liquid crystals have been intensively studied as functional materials. Recently, integration of various disciplines has led to new directions in the design of functional liquid-crystalline materials in the fields of energy, water, photonics, actuation, sensing, and biotechnology. Here, recent advances in functional liquid crystals based on polymers, supramolecular complexes, gels, colloids, and inorganic-based hybrids are reviewed, from design strategies to functionalization of these materials and interfaces. New insights into liquid crystals provided by significant progress in advanced measurements and computational simulations, which enhance new design and functionalization of liquid-crystalline materials, are also discussed.
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Affiliation(s)
- Junya Uchida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Bartolome Soberats
- Department of Chemistry, University of the Balearic Islands, Cra. Valldemossa Km. 7.5, Palma de Mallorca, 07122, Spain
| | - Monika Gupta
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Research Initiative for Supra-Materials, Shinshu University, Wakasato, Nagano, 380-8553, Japan
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Sakaino H, Broer DJ, Meskers SCJ, Meijer EW, Vantomme G. Photo‐Imprinting of the Helical Organization in Liquid‐Crystal Networks Using Achiral Monomers and Circularly Polarized Light. Angew Chem Int Ed Engl 2022; 61:e202200839. [PMID: 35132751 PMCID: PMC9305743 DOI: 10.1002/anie.202200839] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Indexed: 11/08/2022]
Abstract
Control over molecular motion is facilitated in materials with highly ordered nanoscale structures. Here we report on the fabrication of cholesteric liquid‐crystal networks by circularly polarized light irradiation, without the need for chiral dopant or plasticizer. The polymer network is obtained by photopolymerization of a smectic achiral diacrylate mesogen consisting of an azobenzene core and discrete oligodimethylsiloxane tails. The synchronous helical photoalignment and photopolymerization originate from the cooperative movement of the mesogens ordered in well‐defined responsive structures, together with the flexibility of the oligodimethylsiloxane blocks. The resulting thin films show excellent thermal stability and light‐induced memory features with reversible responses. Additionally, we demonstrate the fabrication of photo‐patterned films of liquid‐crystal networks with opposite helical senses. These findings provide a new method to make light‐controllable chiroptical materials with exciting applications in optics and photonics.
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Affiliation(s)
- Hirotoshi Sakaino
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Electronic & Imaging Materials Research Laboratories Toray Industries, Inc. 3-1-2 Sonoyama Otsu Shiga 520-0842 Japan
| | - Dirk J. Broer
- Institute for Complex Molecular Systems Laboratory of Stimuli-Responsive Functional Materials and Devices Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Stefan C. J. Meskers
- Institute for Complex Molecular Systems Molecular Materials and Nanosystems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - E. W. Meijer
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Ghislaine Vantomme
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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Sakaino H, Broer DJ, Meskers SCJ, Meijer EW, Vantomme G. Photo‐Imprinting of the Helical Organization in Liquid‐Crystal Networks Using Achiral Monomers and Circularly Polarized Light. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hirotoshi Sakaino
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
- Electronic & Imaging Materials Research Laboratories Toray Industries, Inc. 3-1-2 Sonoyama Otsu Shiga 520-0842 Japan
| | - Dirk J. Broer
- Institute for Complex Molecular Systems Laboratory of Stimuli-Responsive Functional Materials and Devices Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Stefan C. J. Meskers
- Institute for Complex Molecular Systems Molecular Materials and Nanosystems Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - E. W. Meijer
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
| | - Ghislaine Vantomme
- Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands
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Bujosa S, Greciano EE, Martínez MA, Sánchez L, Soberats B. Unveiling the Role of Hydrogen Bonds in Luminescent N-Annulated Perylene Liquid Crystals. Chemistry 2021; 27:14282-14286. [PMID: 34323342 PMCID: PMC8596826 DOI: 10.1002/chem.202102446] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 12/26/2022]
Abstract
We report the liquid‐crystalline (LC) and luminescent properties of a series of N‐annulated perylenes (1–4) in whose molecular structures amide and ester groups alternate. We found that the LC properties of these compounds not only depend on the number of hydrogen‐bonding units, but also on the relative position of the amide linkers in the molecule. The absence of amide groups in compound 1 leads to no LC properties, whereas four amide groups induce the formation of a wide temperature range columnar hexagonal phase in compound 4. Remarkably, compound 3, with two amide groups in the inner part of the structure, stabilizes the columnar LC phases better than its structural isomer 2, with the amide groups in the outer part of the molecule. Similarly, we found that only compounds 1 and 2, which have no hydrogen bonding units in the inner part of the molecule, exhibit luminescence vapochromism upon exposure to organic solvent vapors.
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Affiliation(s)
- Sergi Bujosa
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
| | - Elisa E Greciano
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid Ciudad Universitaria, s/n, 28040, Madrid, Spain
| | - Manuel A Martínez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid Ciudad Universitaria, s/n, 28040, Madrid, Spain
| | - Luis Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid Ciudad Universitaria, s/n, 28040, Madrid, Spain
| | - Bartolome Soberats
- Department of Chemistry, Universitat de les Illes Balears, Cra. Valldemossa, Km. 7.5, 07122, Palma de Mallorca, Spain
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Eimura H, Niwa A, Uchida J, Kato T. Self-Assembly of Peptide-Containing Mesogens: Thermotropic Liquid-Crystalline Properties and Macroscopic Alignment of Amphiphilic Bioconjugates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210051] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroki Eimura
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Anna Niwa
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Junya Uchida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Termine R, Golemme A. Charge Mobility in Discotic Liquid Crystals. Int J Mol Sci 2021; 22:E877. [PMID: 33467214 PMCID: PMC7830985 DOI: 10.3390/ijms22020877] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
Discotic (disk-shaped) molecules or molecular aggregates may form, within a certain temperature range, partially ordered phases, known as discotic liquid crystals, which have been extensively studied in the recent past. On the one hand, this interest was prompted by the fact that they represent models for testing energy and charge transport theories in organic materials. However, their long-range self-assembling properties, potential low cost, ease of processability with a variety of solvents and the relative ease of tailoring their properties via chemical synthesis, drove the attention of researchers also towards the exploitation of their semiconducting properties in organic electronic devices. This review covers recent research on the charge transport properties of discotic mesophases, starting with an introduction to their phase structure, followed by an overview of the models used to describe charge mobility in organic substances in general and in these systems in particular, and by the description of the techniques most commonly used to measure their charge mobility. The reader already familiar or not interested in such details can easily skip these sections and refer to the core section of this work, focusing on the most recent and significant results regarding charge mobility in discotic liquid crystals.
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Affiliation(s)
- Roberto Termine
- LASCAMM CR-INSTM, CNR-NANOTEC SS di Rende, Dipartimento di Fisica, Università Della Calabria, 87036 Rende, Italy;
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Henkel C, Wittmann JE, Träg J, Will J, Stiegler LMS, Strohriegl P, Hirsch A, Unruh T, Zahn D, Halik M, Guldi DM. Mixed Organic Ligand Shells: Controlling the Nanoparticle Surface Morphology toward Tuning the Optoelectronic Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1903729. [PMID: 31778297 DOI: 10.1002/smll.201903729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 10/05/2019] [Indexed: 06/10/2023]
Abstract
Precise control over the ratio of perylene bisimide (PBI) monomers and aggregates, immobilized on alumina nanoparticle (NP) surfaces, is demonstrated. Towards this goal, phosphonic acid functionalized PBI derivatives (PA-PBI) are shown to self-assemble into stoichiometrically mixed monolayers featuring aliphatic, glycolic, or fluorinated phosphonic acid ligands, serving as imbedding matrix (PA-M) to afford core-shell NPs. Different but, nevertheless, defined PBI monomer/aggregate composition is achieved by either the variation in the PA-PBI to PA-M ratios, or the utilization of different PA-Ms. Various steady-state as well as time-resolved spectroscopy techniques are applied to probe the core-shell NPs with respect to changes in their optical properties upon variations in the shell composition. To this end, the ratio between monomer and excimer-like emission assists in deriving information on the self-assembled monolayer composition, local ordering, and corresponding aggregate content. With the help of X-ray reflectivity measurements, accompanied by molecular dynamics simulations, the built-up of the particle shells, in general, and the PBI aggregation behavior, in particular, are explored in depth.
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Affiliation(s)
- Christian Henkel
- Department Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
| | - Judith E Wittmann
- Organic Materials and Devices, Friedrich-Alexander-University Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Johannes Träg
- Computer Chemistry Center, Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstraße 25, 91052, Erlangen, Germany
| | - Johannes Will
- Institute for Crystallography and Structural Physics, Friedrich-Alexander-University Erlangen-Nürnberg, Staudtstraße 3, 91058, Erlangen, Germany
- Center for Nanoanalysis and Electron Microscopy, Friedrich-Alexander-University Erlangen-Nürnberg, Cauerstraße 6, 91058, Erlangen, Germany
| | - Lisa M S Stiegler
- Chair of Organic Chemistry II, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Peter Strohriegl
- Macromolecular Chemistry I, University of Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany
| | - Andreas Hirsch
- Chair of Organic Chemistry II, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Tobias Unruh
- Institute for Crystallography and Structural Physics, Friedrich-Alexander-University Erlangen-Nürnberg, Staudtstraße 3, 91058, Erlangen, Germany
- Center for Nanoanalysis and Electron Microscopy, Friedrich-Alexander-University Erlangen-Nürnberg, Cauerstraße 6, 91058, Erlangen, Germany
| | - Dirk Zahn
- Computer Chemistry Center, Friedrich-Alexander-University Erlangen-Nürnberg, Nägelsbachstraße 25, 91052, Erlangen, Germany
| | - Marcus Halik
- Organic Materials and Devices, Friedrich-Alexander-University Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Dirk M Guldi
- Department Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstraße 3, 91058, Erlangen, Germany
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Seki A, Uemura S, Funahashi M. Self-assembled structures of bent-shaped π-conjugated compounds: effect of siloxane groups for nano-segregation. CrystEngComm 2020. [DOI: 10.1039/d0ce01325k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The tuning of nanostructures is successfully achieved by introduction of siloxane unit to bithiophene-modified bent-shaped skeleton.
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Affiliation(s)
- Atsushi Seki
- Program in Advanced Materials Science
- Faculty of Engineering and Design
- Kagawa University
- Takamatsu
- Japan
| | - Shinobu Uemura
- Program in Advanced Materials Science
- Faculty of Engineering and Design
- Kagawa University
- Takamatsu
- Japan
| | - Masahiro Funahashi
- Program in Advanced Materials Science
- Faculty of Engineering and Design
- Kagawa University
- Takamatsu
- Japan
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De J, Bala I, Gupta SP, Pandey UK, Pal SK. High Hole Mobility and Efficient Ambipolar Charge Transport in Heterocoronene-Based Ordered Columnar Discotics. J Am Chem Soc 2019; 141:18799-18805. [DOI: 10.1021/jacs.9b09126] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Joydip De
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Sahibzada Ajit Singh Nagar, Knowledge City, Manauli 140306, India
| | - Indu Bala
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Sahibzada Ajit Singh Nagar, Knowledge City, Manauli 140306, India
| | | | - Upendra Kumar Pandey
- Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science (IISc) Bangalore, C. V. Raman Road, Bangalore, Karnataka 560012, India
| | - Santanu Kumar Pal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Sahibzada Ajit Singh Nagar, Knowledge City, Manauli 140306, India
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Westphal E, Gallardo H, Poppe S, Prehm M, Tschierske C. Controlling the soft self-assembly of 1,3,4-oxadiazoles by carbosilane end-groups. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111362] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Onuma T, Yoshio M, Obi M, Kashiwagi K, Tahara S, Kato T. Liquid-crystalline behavior and ion transport properties of block-structured molecules containing a perfluorinated ethylene oxide moiety complexed with a lithium salt. Polym J 2018. [DOI: 10.1038/s41428-018-0051-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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