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	2016/09
形態種別	学術雑誌
査読	査読あり
標題	Thermal and mechanical properties of bio-based polymer networks by thiol-ene photopolymerizations of gallic acid and pyrogallol derivatives
執筆形態	共著
掲載誌名	Journal of Polymer Research
掲載区分	国外
出版社・発行元	Springer
巻・号・頁	23,pp.216(1)-216(10)
著者・共著者	Yuta Uemura, Toshiaki Shimasaki, Naozumi Teramoto, Mitsuhiro Shibata
概要	Allylated pyrogallol (A3PG) and acrylated pyrogallol(Ac3PG) as bio-based trienes, and allylated gallic acid (A4GA) and acrylated allyl gallate (Ac3A1GA) as bio-based tetraenes were synthesized. Thiol-ene photopolymerizations of the biobased polyenes and a pentaerythritol-based primary tetrathiol (pS4P) produced photo-cured resins (A3PG-pS4P, Ac3PG-pS4P, A4GApS4P and Ac3A1GA-pS4P). The FT-IR spectral analysis revealed that thiol-ene reactions of thiol/allyl and thiol/acryloyl groups smoothly proceeded. Gel fractions of acryl-based cured resins were a little higher than those of allyl-based cured resins. GA- and acryl-based cured resins exhibited higher crosslinking densities than PG- and allyl-based cured resins, respectively. A higher order of tan δ peak temperature was Ac3PG-pS4P > Ac3A1GApS4P>A4GA-pS4P>A3PG-pS4P. Ac3PG-pS4P displayed the highest 5 % weight loss temperature, tensile strength and tensile modulus among all of the cured resins.