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 | 2014/03 |
形態種別 | 学術雑誌 |
査読 | 査読あり |
標題 | Organogelation behavior and thermal properties of supramolecular polymer networks using pyridyl-terminated four-arm star-shaped epsilon-caprolactone oligomers and disulfonic acids |
執筆形態 | 共著 |
掲載誌名 | Colloid and Polymer Science |
掲載区分 | 国外 |
出版社・発行元 | Springer |
巻・号・頁 | 292(6),pp.1261-1268 |
著者・共著者 | Taro Nakamura, Takahito Fuke, Mitsuhiro Shibata |
概要 | As a tetrapyridyl compound, nicotinate-terminated 4-arm star-shaped caprolactone oligomer (Tetra-NA-CLO) was synthesized by the reaction of nicotinic acid and hydroxy-terminated 4-arm star-shaped caprolactone oligomer (Tetra-OH-CLO). As disulfonic acids, 1,3-bis(sulfopropoxy)propane (BSP) and 1,6-bis(sulfopropoxy)hexane (BSH) were synthesized by the reactions of 1,3-propanesultone with 1,3-propanediol and 1,6-hexanediol, respectively. A mixture of Tetra-NA-CLO and BSP or BSH became a thermo-reversible organogel. The sol-gel transition temperature of the mixtures was at around 15-20 degree C. The NMR analysis of the mixture in a solution revealed a complete ionization of the pyridyl ring. The dried Tetra-NA-CLO/BSP and Tetra-NA-CLO/BSH films had higher crystallinity and melting temperature than that of the dried Tetra-NA-CLO film. The FT-IR analysis of the mixture in a dried solid state revealed that both the ionic and hydrogen-bonding interactions contributed. |
DOI | 10.1007/s00396-014-3179-y |
ISSN | 0303-402X |