| ID | 74503 |
| Title Transcription | デンキ コウガク デバイス エノ オウヨウ オ メザシタ ボトム アップ ニヨル ナノ スケール ザイリョウ ノ チョウセイ
|
| Title Alternative | Bottom-up Syntheses of Nano-scale Materials for Electronic and Optoelectronic Devices
|
| Author |
Mori, Takeshi
Department of Chemical Science and Technology Faculty of Engineering, The University of Tokushima
Minagawa, Keiji
Department of Chemical Science and Technology Faculty of Engineering, The University of Tokushima
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Watanabe, Takushi
Department of Chemical Science and Technology Faculty of Engineering, The University of Tokushima
Haraguchi, Masanobu
Department of Optical Science and Technology Faculty of Engineering, The University of Tokushima
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|
| Keywords | block copolymer
oligo(p-phenylenevinylene)
self-assembly
nano-wire
|
| Content Type |
Departmental Bulletin Paper
|
| Description | Rod-coil amphiphilic diblock copolymers consisting of oligo(2,5-di-n-octyloxy-1,4-phenylenevinylene)
(OPV) as a rod and a hydrophobic block, and poly(ethylene oxide) (PEO) as a coil and a hydrophilic block were synthesized by a convergent method. The aggregation behavior of the block copolymers in a selective solvent (THF / H2O) was probed by utilizing the absorption and the emission of the OPV block. With increasing H2O content, the absorption maximum was blue-shifted, the emission from the molecularly dissolved OPV decreased, and that from the aggregated OPV increased. The transmission electron microscopy observation revealed that the block copolymers with the PEO weight fractions of 41 and 62 wt% formed cylindrical aggregate with a diameter of 6-8 nm and a length of several hundreds nanometer, while, the block copolymer with 79 wt% of PEO fraction formed distorted spherical aggregates with an average diameter of 13 nm. |
| Journal Title |
徳島大学工学部研究報告
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| ISSN | 03715949
|
| NCID | AA1221470X
|
| Volume | 50
|
| Published Date | 2005
|
| FullText File | |
| language |
jpn
|
| departments |
Liberal Arts and Sciences
Science and Technology
|
