Structure Formation and Its Control in Combined Phase Transition in Block Copolymers Blends
| Project/Area Number |
14350494
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
高分子構造・物性(含繊維)
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
SHIOMI Tomoo Nagaoka University of Technology, Faculty of Engineering, Professor, 工学部, 教授 (10134967)
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| Co-Investigator(Kenkyū-buntansha) |
TAKENAKA Katsuhiko Nagaoka University of Technology, Faculty of Engineering, Ass.Professor, 工学部, 助教授 (30188205)
TAKESHITA Hiroki Nagaoka University of Technology, Faculty of Engineering, Research Ass., 工学部, 助手 (80313568)
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| Project Period (FY) |
2002 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥14,700,000 (Direct Cost: ¥14,700,000)
Fiscal Year 2004: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2003: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2002: ¥5,400,000 (Direct Cost: ¥5,400,000)
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| Keywords | crystalline block copolymer / polymer blend / microphase separation / macrophase separation / crystallization / nano-ordered structure / time-resolved small-angle X-ray scattering / 高次構造 / 時分割小角X線散 / ポリエチレングリコール-block-ポリブタジエン / ポリエチレン-block-ポリスチレン |
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| Research Abstract |
Microphase structure and its formation process in combination of macrophase separation, microphase separation and crystallization were investigated for polymer blends containing crystalline-amorphous block copolymers using mainly time-resolved synchrotron small-angle X-ray scattering technique and diffferantial scanning calorimetry. For the systems with a rubbery amorphous component, whether or not crystallization destroyed microphase separation structure in melt depended on its morphology, molecular weight and temperature ; crystallization occurred within cylindrical structure. On the other hand, melt structure was maintained completely for the systems with a glassy amorphous component. The structure formation was not affected by occurrence of microphase separation ; two kinds of miaophase separation structure could coexist even after crystallization. The present study revealed that the crystalline phase could be ananged regularly in the nano-order scale using melt microphase structure as a template.
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Report
(4 results)
Research Products
(20 results)
