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	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