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 Tokushima University Educator and Researcher Directory KAKEN Search Researchers
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 Tokushima University Educator and Researcher Directory KAKEN Search Researchers
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
ISSN
03715949
NCID
AA1221470X
Volume
50
Published Date
2005
FullText File
language
jpn
departments
Liberal Arts and Sciences
Science and Technology