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Ito A, Shin A, Nitta KH. Viscoelastic Properties of Water-Absorbed Poly(methyl methacrylate) Doped with Lithium Salts with Various Anions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27207114. [PMID: 36296706 PMCID: PMC9607444 DOI: 10.3390/molecules27207114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/22/2022] [Accepted: 10/08/2022] [Indexed: 11/06/2022]
Abstract
We investigated the effects of water absorption on the dynamic mechanical properties of poly(methyl methacrylate) doped with various generic lithium salts, such as lithium perchlorate trihydrate (LiClO4), lithium trifluoromethanesulfonate (LiCF3SO3), lithium nonafluorobutanesulfonate (LiC4F9SO3), and lithium bis(trifluoromethanesulfonyl)imide (LiN(CF3SO2)). The rates of weight change during water absorption of lithium salt-doped samples were higher in the following order: LiClO4, LiCF3SO3, LiC4F9SO3, and LiN(CF3SO2). Interestingly, the aforementioned order was the same as the order of the terminal relaxation times in the flow region of the viscoelastic measurement in the melting-state. This implies that the water absorption of the salt-doped PMMA occurs due to the factors that affect the pinning of the PMMA molecular chains in the places.
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Affiliation(s)
| | | | - Koh-hei Nitta
- Correspondence: ; Tel.: +81-761-234-6221; Fax: +81-761-264-4829
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Additive Effects of Lithium Salts with Various Anionic Species in Poly (Methyl Methacrylate). Molecules 2021; 26:molecules26134096. [PMID: 34279435 PMCID: PMC8271803 DOI: 10.3390/molecules26134096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/02/2021] [Accepted: 07/02/2021] [Indexed: 11/19/2022] Open
Abstract
We report that lithium salts in lithium-ion batteries effectively modify the physical properties of poly (methyl methacrylate) (PMMA). The glass transition temperature (Tg) is an indicator of the heat resistance of amorphous polymers. The anionic species of the salts strongly affected the glass transition behavior of PMMA. We focused on the additive effects of various lithium salts, such as LiCF3SO3, LiCOOCF3, LiClO4, and LiBr, on the Tg of PMMA. The large anions of the former three salts caused them to form macroscopic aggregates that acted as fillers in the PMMA matrix and to combine the PMMA domains, increasing Tg. On the other hand, LiBr salts dispersed microscopically in the PMMA matrix at the molecular scale, leading to the linking of the PMMA chains. Thus, the addition of LiBr to PMMA increased Tg as well as the relaxation time in the range of glass to rubber transition.
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Goodwin A, Goodwin KM, Wang W, Yu YG, Lee JS, Mahurin SM, Dai S, Mays JW, Kang NG. Anionic Polymerization of Oxadiazole-Containing 2-Vinylpyridine by Precisely Tuning Nucleophilicity and the Polyelectrolyte Characteristics of the Resulting Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00875] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Andrew Goodwin
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
| | - Kimberly M. Goodwin
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
| | - Weiyu Wang
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
| | - Yong-Guen Yu
- School
of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea
| | - Jae-Suk Lee
- School
of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Korea
| | - Shannon M. Mahurin
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Sheng Dai
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jimmy W. Mays
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Nam-Goo Kang
- Department
of Chemistry, University of Tennessee, Buehler Hall, 1420 Circle Dr., Knoxville, Tennessee 37996, United States
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Mizumo T, Kajihara T, Yamada T, Ohshita J. Preparation and utilization of poly(methacryloylsilatrane) as a salt-dissociation enhancer in PEO-based polymer electrolytes. POLYM ADVAN TECHNOL 2013. [DOI: 10.1002/pat.3134] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tomonobu Mizumo
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University; Kagamiyama 1-4-1 Higashi-hiroshima Hiroshima 739-8527 Japan
| | - Tomonari Kajihara
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University; Kagamiyama 1-4-1 Higashi-hiroshima Hiroshima 739-8527 Japan
| | - Takehiro Yamada
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University; Kagamiyama 1-4-1 Higashi-hiroshima Hiroshima 739-8527 Japan
| | - Joji Ohshita
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University; Kagamiyama 1-4-1 Higashi-hiroshima Hiroshima 739-8527 Japan
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Oe Y, Tominaga Y. Utilization of carbon dioxide for polymer electrolytes [I]: Effect of supercritical treatment conditions on ionic conduction in amorphous polyether/salt mixtures. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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TOMINAGA Y. Ionic Conduction in Solid Polymer Electrolytes Using Carbon Dioxide as Solvent. KOBUNSHI RONBUNSHU 2008. [DOI: 10.1295/koron.65.525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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