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 | 2013/12 |
形態種別 | 学術雑誌 |
査読 | 査読あり |
標題 | Thermal and mechanical properties of semi-interpenetrating polymer networks composed of diisocyanate-bridged four-arm star-shaped epsilon-caprolactone oligomers and poly(epsilon-caprolactone). |
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 | Wiley |
巻・号・頁 | 130(6),pp.4229-4236 |
著者・共著者 | Mitsuhiro Shibata, Naozumi Teramoto, Kyohei Hoshino, Hayato Takasa, Ayaka Shibita |
概要 | Semi-interpenetrating polymer networks (S-IPNs) were prepared by the reactions of hydroxy-terminated 4-arm star-shaped e-caprolactone oligomers (H4CLOs) with the degrees of polymerization per one oligocaprolactone chain, n = 3, 5 and 10 and 2,4-tolylene diisocyanate (TDI) in the presence of poly(e-caprolactone) (PCL). In the dynamic mechanical analysis of the S-IPN (TH4CLO/PCL), only one tan d peak was observed, whose temperature increased with increasing TDI-bridged H4CLO (TH4CLO) content and with decreasing n value. The differential scanning calorimetric analyses of TH4CLOs and TH4CLO/PCLs revealed that TH4CLOs (n = 3 and 5) are amorphous, while TH4CLO (n = 10) is semi-crystalline, and that the crystallization of the PCL chain for TH4CLO/PCLs is more strongly disturbed with increasing TH4CLO content and decreasing n value. Although tensile strength, modulus and elongation at break of TH4CLO were much lower than those of PCL, those values increased with n value. |
DOI | 10.1002/app.39551 |
ISSN | 0021-8995 |