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 | 2010/03 |
形態種別 | 学術雑誌 |
査読 | 査読あり |
標題 | Biodegradable polyuthethane elastomers prepared from isocyanate-terminated poly(ethylene adipate), castor oil, and glycerol |
執筆形態 | 共著 |
掲載誌名 | Journal of Applied Polymer Science |
掲載区分 | 国外 |
出版社・発行元 | John Wiley & Sons |
巻・号・頁 | 115(6),pp.3199-3204 |
著者・共著者 | Naozumi Teramoto, Yuichi Saitoh, Atsuo Takahashi, Mitsuhiro Shibata |
概要 | The curing reaction of tolylene-2,4-diisocyanate-terminated poly(ethylene adipate) (PEA-TDI) with a mixture of castor oil (CO) and glycerol (GO) at 150 degree C gave crosslinked polyurethane(CO/GO-PU). All the polyurethanes were elastomeric materials at r.t. The Tg of the CO/GO-PU increased with decreasing CO/GO ratio. All the cured polyurethanes had a higher 5% weight loss temperature than PEA-TDI. The tensile strength and modulus of the polyurethanes increased with decreasing CO/GO ratio, and tensile residual strain after 300% elongation for all the CO/GO-PUs was almost 0. All the polyurethanes had biodegradability, when measured by a biochemical oxygen demand method in an aqueous medium using activated sludge. The rate of the biodegradation of the polyurethanes increased with an increase of CO/GO ratio. The crosslinked CO-PU showed much higher biodegradability than the linear PEA-TDI. |
DOI | 10.1002/app.30019 |
ISSN | 0021-8995 |