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Effect of the ordered network polymer structure of cyclic-siloxane-type liquid crystalline epoxy thermosets on their fracture toughness and thermal conductivity
http://hdl.handle.net/10112/0002003522
http://hdl.handle.net/10112/0002003522e378a323-6fc2-4056-8da2-a32c5834a105
| 名前 / ファイル | ライセンス | アクション |
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KU-1100-20241224-01.pdf (933 KB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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| 公開日 | 2025-11-20 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Effect of the ordered network polymer structure of cyclic-siloxane-type liquid crystalline epoxy thermosets on their fracture toughness and thermal conductivity | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | open access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||
| 著者 |
原田, 美由紀
× 原田, 美由紀
WEKO
26764
× 横山, 宥吾
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| 概要 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | Liquid crystalline (LC) epoxy thermosets with a cyclic siloxane structure were prepared using two types of aromatic amine curing agents: 4,4'-diaminodiphenylethane (DDE) and p-phenylenediamine (p-PDA). The networked chain structure was investigated in detail via polarized optical microscopy, X-ray diffraction analysis, and transmission electron microscopy. The obtained epoxy thermosets formed an LC domain structure that was approximately 5 μm for the DDE system and 2-5 μm for the p-PDA system. In particular, the LC domains in the p-PDA system were composed of a highly aligned smectic phase. Compared with the DDE system, the p-PDA system had the highest modulus due to the packing structure of the smectic ordered network chains. The effect of the networked polymer structure on the fracture toughness was also investigated. High fracture toughness was observed with the formation of the oriented structures, and a maximum value of 1.15 kJ/m2 was attained for the p-PDA system. The introduction of a flexible siloxane structure in the epoxy backbone slightly suppressed the increase in the thermal conductivity. However, the thermal conductivity of the p-PDA system was slightly greater (0.28 W/(m·K)) because of the highly oriented structure. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Polymer Journal 巻 57, 号 4, p. 395-405, 発行日 2024-12-24 |
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| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0032-3896 | |||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1349-0540 | |||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA12453460 | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1038/s41428-024-01003-7 | |||||||||||||
| 権利 | ||||||||||||||
| 言語 | en | |||||||||||||
| 権利情報 | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature's AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1038/s41428-024-01003-7. | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | Springer Nature | |||||||||||||
| 言語 | en | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Epoxy | |||||||||||||
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| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | fracture toughness | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | liquid crystals | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | thermosetting polymers | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | thermal conductivity | |||||||||||||
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| 言語 | ja | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | 関西大学 | |||||||||||||
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| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Kansai University | |||||||||||||
