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シバタ ミツヒロ
SHIBATA MITSUHIRO
柴田 充弘 所属 千葉工業大学 工学部 応用化学科 千葉工業大学 工学研究科 工学専攻 千葉工業大学 工学研究科 応用化学専攻 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2022/02/20 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Self-healing polyester networks prepared from poly(butylene succinate-co-butylene itaconate) and thiol-terminated polyether containing disulfide linkages |
| 執筆形態 | 共著 |
| 掲載誌名 | Polymer |
| 掲載区分 | 国外 |
| 出版社・発行元 | Elsevier |
| 巻・号・頁 | 244(124668) |
| 総ページ数 | 8 |
| 担当区分 | 責任著者 |
| 概要 | Crosslinked polyester films exhibiting disulfide metathesis-driven self-healing were prepared via 1-methylimidazole-mediated thermal thiol-ene reaction of poly(butylene succinate-co-butylene itaconate) (PBSI) and a thiolterminated polyether (LP-3) containing disulfide linkages at C=C/SH ratios of 2/1, 1/1, and 1/2. Fouriertransform infrared spectroscopy and gel fraction measurements of the crosslinked films confirmed the formation of polyester networks via thiol-ene reaction. The 5% weight loss temperature, glass transition temperature, and tensile strength of the crosslinked films increased with increasing PBSI/LP-3 ratio. All crosslinked films exhibited healing properties when hot-pressed at 100 ◦C for 14–24 h. The PBSI/LP-3 crosslinked films exhibitedhigher healing efficiencies in terms of tensile strength recovery (up to 94.2% at C=C/SH ratio = 1/1) than the crosslinked polyester of PBSI and 2,2’-(ethylenedioxy)diethanethiol without disulfide bonds. |