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Molecular Composites from Rigid-Rod Poly(p-phenylene)s with Oligo(oxyethylene) Side Chains as Novel Polymer Electrolytes
Abstract
The preparation of new poly( p -phenylene)s with oligo(oxyethylene) side chains is reported. The solid state structure of the polymers as well as that of their mixtures with either lithium triflate or lithium bis(trifluoromethanesulfone)imide is described as a molecular composite consisting of rigid main chains embedded in a matrix of side-chain segments or side-chain/salt mixtures. DSC and temperature-dependent X-ray scattering prove that the side-chain matrix in the pure polymers and polymer/salt mixtures is completely amorphous. Room-temperature conductivities of more than 10 -6 S/cm are obtained in some of these solid polymer electrolytes. Plasticization of the materials with oligo(ethyleneglycol)dimethylether (OEGDME) improves the conductivity up to 5·10 -5 S/cm. The stiff polymer backbone induces a high mechanical plateau-modulus in the temperature range between 0 and 90 °C, which is of considerable importance for potential applications of these molecular composites as separators in rechargeable solid state lithium cells.
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Williams, M. L., Landel, R. F., & Ferry, J. D. (1955) · Journal of the American Chemical Society · doi:10.1021/ja01619a008 · Cited by 8,083
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Polymer Electrolytes for Lithium-Ion Batteries
Meyer, W. H. (1998) · Advanced Materials · doi:10.1002/(sici)1521-4095(199804)10:6<439::aid-adma439>3.0.co;2-i · Cited by 1,455
Self-citationWatson, M. D., Fechtenkötter, A., & Müllen, K. (2001) · Chemical Reviews · doi:10.1021/cr990322p · Cited by 1,374
Functional Liquid Crystals towards the Next Generation of Materials
Kato, T., Uchida, J., Ichikawa, T., & Sakamoto, T. (2018) · Angewandte Chemie International Edition · doi:10.1002/anie.201711163 · Cited by 518
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Metadata
- Authors
- Lauter, U., Meyer, W. H., & Wegner, G.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-04-01
- Volume
- 30
- Issue
- 7
- Pages
- 2092-2101
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2002510853
- Cited by
- 182
- References
- 1
- FWCI
- 15.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lauter, U., Meyer, W. H., & Wegner, G. (1997). Molecular Composites from Rigid-Rod Poly(p-phenylene)s with Oligo(oxyethylene) Side Chains as Novel Polymer Electrolytes. Macromolecules. https://doi.org/10.1021/ma961098y
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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