Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels
Confinement of polymers in nano-spaces can induce unique molecular dynamics and properties. Here we show molecular weight fractionation by the confinement of single polymer chains of poly(ethylene oxide) (PEO) in the one-dimensional (1D) channels of crystalline pillar[5]arene. Pillar[5]arene crystal...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2019
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| Online Access: | https://hdl.handle.net/10356/89909 http://hdl.handle.net/10220/47746 |
| _version_ | 1811696005890965504 |
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| author | Ogoshi, Tomoki Sueto, Ryuta Yagyu, Masafumi Kojima, Ryosuke Kakuta, Takahiro Yamagishi, Tada-aki Doitomi, Kazuki Tummanapelli, Anil Kumar Hirao, Hajime Sakata, Yoko Akine, Shigehisa Mizuno, Motohiro |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Ogoshi, Tomoki Sueto, Ryuta Yagyu, Masafumi Kojima, Ryosuke Kakuta, Takahiro Yamagishi, Tada-aki Doitomi, Kazuki Tummanapelli, Anil Kumar Hirao, Hajime Sakata, Yoko Akine, Shigehisa Mizuno, Motohiro |
| author_sort | Ogoshi, Tomoki |
| collection | NTU |
| description | Confinement of polymers in nano-spaces can induce unique molecular dynamics and properties. Here we show molecular weight fractionation by the confinement of single polymer chains of poly(ethylene oxide) (PEO) in the one-dimensional (1D) channels of crystalline pillar[5]arene. Pillar[5]arene crystals are activated by heating under reduced pressure. The activated crystals are immersed in melted PEO, causing the crystals to selectively take up PEO with high mass fraction. The high mass fractionation is caused by the greater number of attractive CH/π interactions between PEO C-H groups and the π-electron-rich 1D channel of the pillar[5]arene with increasing PEO chain length. The molecular motion of the confined PEO (PEO chain thickness of ~3.7 Å) in the 1D channel of pillar[5]arenes (diameter of ~4.7 Å) is highly restricted compared with that of neat PEO. |
| first_indexed | 2024-10-01T07:32:29Z |
| format | Journal Article |
| id | ntu-10356/89909 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:32:29Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/899092023-02-28T19:36:10Z Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels Ogoshi, Tomoki Sueto, Ryuta Yagyu, Masafumi Kojima, Ryosuke Kakuta, Takahiro Yamagishi, Tada-aki Doitomi, Kazuki Tummanapelli, Anil Kumar Hirao, Hajime Sakata, Yoko Akine, Shigehisa Mizuno, Motohiro School of Physical and Mathematical Sciences Polymer Chemistry Self-assembly DRNTU::Science::Chemistry Confinement of polymers in nano-spaces can induce unique molecular dynamics and properties. Here we show molecular weight fractionation by the confinement of single polymer chains of poly(ethylene oxide) (PEO) in the one-dimensional (1D) channels of crystalline pillar[5]arene. Pillar[5]arene crystals are activated by heating under reduced pressure. The activated crystals are immersed in melted PEO, causing the crystals to selectively take up PEO with high mass fraction. The high mass fractionation is caused by the greater number of attractive CH/π interactions between PEO C-H groups and the π-electron-rich 1D channel of the pillar[5]arene with increasing PEO chain length. The molecular motion of the confined PEO (PEO chain thickness of ~3.7 Å) in the 1D channel of pillar[5]arenes (diameter of ~4.7 Å) is highly restricted compared with that of neat PEO. Published version 2019-03-01T07:22:06Z 2019-12-06T17:36:22Z 2019-03-01T07:22:06Z 2019-12-06T17:36:22Z 2019 Journal Article Ogoshi, T., Sueto, R., Yagyu, M., Kojima, R., Kakuta, T., Yamagishi, T. a., . . . Mizuno, M. (2019). Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels. Nature Communications, 10(1), 479-. doi:10.1038/s41467-019-08372-1 https://hdl.handle.net/10356/89909 http://hdl.handle.net/10220/47746 10.1038/s41467-019-08372-1 en Nature Communications © 2019 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. 8 p. application/pdf |
| spellingShingle | Polymer Chemistry Self-assembly DRNTU::Science::Chemistry Ogoshi, Tomoki Sueto, Ryuta Yagyu, Masafumi Kojima, Ryosuke Kakuta, Takahiro Yamagishi, Tada-aki Doitomi, Kazuki Tummanapelli, Anil Kumar Hirao, Hajime Sakata, Yoko Akine, Shigehisa Mizuno, Motohiro Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title | Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title_full | Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title_fullStr | Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title_full_unstemmed | Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title_short | Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels |
| title_sort | molecular weight fractionation by confinement of polymer in one dimensional pillar 5 arene channels |
| topic | Polymer Chemistry Self-assembly DRNTU::Science::Chemistry |
| url | https://hdl.handle.net/10356/89909 http://hdl.handle.net/10220/47746 |
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