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	2014/07
形態種別	学術雑誌
査読	査読あり
標題	Photo-cured organic-inorganic hybrid composites of methacrylate-terminated 4-arm star-shaped epsilon-caprolactone oligomer and methacrylate- or thiol-substituted polysilsesquioxane
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	21(7),pp.507(1)-507(10)
著者・共著者	Mamoru Ito, Toshiaki Shimasaki, Naozumi Teramoto, Mitsuhiro Shibata
概要	Methacrylate-terminated 4-arm star shaped caprolactone oligomer (ME4CLO) was synthesized and photo-cured with methacrylate-substituted polysilsesquioxane (ME-PSQ) or mercaptopropyl-substituted polysilsesquioxane (SH-PSQ). The FTIR spectral analyses of the cured hybrid composites revealed addition polymerization of methacryloyl groups and/or a thiol-ene reaction of methacryloyl and mercapto groups. Transmission electron microscope (TEM) observation revealed phase-separated spherical particles with a diameter of 5 micro meter for the cured ME4CLO/ME-PSQ 16/2, while the cured ME4CLO/SH-PSQ 16/2 had the unstructured particles with a finer size. DSC analysis revealed crystallization of the oligocaprolactone chain was largely disturbed by the crosslinking reaction, and that the cured ME4CLO/ME-PSQ and ME4CLO/SH-PSQ 16/1 showed a higher glass transition temperature than cured ME4CLO. Tensile modulus of cured ME4CLO/ME-PSQ increased with increasing ME-PSQ content.
DOI	10.1007/s10965-014-0507-3
ISSN	1022-9760