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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/13523
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| タイトル: | Syntheses of rigid-rod but degradable biopolyamides from itaconic acid with aromatic diamines |
| 著者: | Ali, Mohammad Asif
Tateyama, Seiji
Kaneko, Tatsuo |
| キーワード: | itaconic acid
bioplastics
polyamides
heterocycles
biodegradation |
| 発行日: | 2014-06-11 |
| 出版者: | Elsevier |
| 誌名: | Polymer Degradation and Stability |
| 巻: | 109 |
| 開始ページ: | 367 |
| 終了ページ: | 372 |
| DOI: | 10.1016/j.polymdegradstab.2014.05.031 |
| 抄録: | Highly-thermostable but degradable polyamides have been synthesized by a polycondensation of bio-derived itaconic acid salts with aromatic diamines to form heterocyclic pyrrolidone ring in the polymer backbone. The molecular weight was greater than 33600 g/mol. Glass transition temperatures, T_g, and 10% weight loss temperatures, T_<10>, ranged 156–242 °C and 370–400 °C, respectively, which were higher than those of conventional bio-based plastics. However their processability was too low to process the fiber as specimens of mechanical tests. We then incorporated an appropriate amount of aliphatic moiety into the aromatic backbones to prepare the high-performance and processable polyamides with T_g over 115 °C and T_<10> over 355 °C. The processed fibers showed tensile strength and Young's modulus ranged 20–58 MPa and 0.2–2.3 GPa, respectively. The degradation behaviors inside soil and under ultraviolet-irradiation in water were additionally found. |
| Rights: | Copyright (C)2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author's version of a work accepted for publication by Elsevier. Mohammad Asif Ali, Seiji Tateyama, Tatsuo Kaneko, Polymer Degradation and Stability, 109, 2014, 367-372, http://dx.doi.org/10.1016/j.polymdegradstab.2014.05.031 |
| URI: | http://hdl.handle.net/10119/13523 |
| 資料タイプ: | author |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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