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
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