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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 | 2010/01 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Synthesis and properties of trehalose-based flexible polymers prepared from difurfurylidene trehalose and maleimide-terminated oligo(dimethylsiloxane) by Diels-Alder reactions |
| 執筆形態 | 共著 |
| 掲載誌名 | Materials |
| 掲載区分 | 国外 |
| 出版社・発行元 | MDPI AG |
| 巻・号・頁 | 3,pp.369-385 |
| 著者・共著者 | Naozumi Teramoto, Masashi Niwa, Mitsuhiro Shibata |
| 概要 | Trehalose-based polymers were synthesized by Diels-Alder reaction of difurfurylidene trehalose (DFTreh) and maleimide-terminated dimethylsiloxane oligomer
(DMS-BMI). The reaction proceeded at 40-70 degree C to produce a polymer with a maximum Mw of ca. 19,000. The thermal degradation temperature increased with the increase of the length of the oligo(dimethylsiloxane) units. DCS measurements revealed the Tg of the polymer at -130 to -120 degree C. The polymer products are not liquid at r.t., and solid films can be obtained by casting from solution, implying a phase-separated structure made up of soft and hard segments. The phase-separated structure was confirmed by TEM analysis. The DSC curve of the polymer showed a broad endothermic peak at 110 to 160 degree C, suggesting that a retro-Diels-Alder reaction occurred. When a DMF solution of the polymer was kept at 100 degree C and the resulting solution was analyzed by GPC, the molecular weight decreased and monomers appeared. |
| DOI | 10.3390/ma3010369 |
| ISSN | 1996-1944 |