研究者情報 | 神奈川大学

イケハラ　タカユキ Ikehara Takayuki 池原　飛之所属神奈川大学化学生命学部応用化学科神奈川大学大学院工学研究科工学専攻（応用化学領域）職種教授
言語種別	日本語
発行・発表の年月	2012/01
形態種別	学術雑誌
標題	Spherulitic Growth in Block Copolymers and Blends of Miscible Crystalline Polymers
執筆形態	共著
掲載誌名	Journal of Polymer Science Part B: Polymer Physics
巻・号・頁	50(8),563-571頁
著者・共著者	Takayuki Ikehara, Hideo Kurihara, Toshiyuki Kataoka
概要	Spherulitic morphology and growth rate of block copolymers comprised of miscible crystalline constituents, namely poly(ethylene succinate) (PES) and poly(ethylene oxide) (PEO), were investigated. The results of the copolymers were compared with those of the blends with the same composition and molecular weight. Interpenetrating spherulites, where spherulites of one component grow in those of the other component, were observed in the copolymers as in the blends. Copolymerization, namely the connectivity of the PES and PEO blocks, reduced the spherulitic growth rate in the melt for both components. The growth inside the spherulites of the other component was discussed based on the lamellar and fibrillar (or lamella-stack) structures, which are influenced by the interblock connectivity. Suppression of molecular mobility in the interlamellar regions resulted in the reduced nucleation and growth rate of the component growing in the spherulites of the other constituent. PES of the copolymer showed dendrites around 60 degrees C or above.