Fabrication of block copolymer particles with nano-sized periodic structures

Takeshi Higuchi; Hiroshi Yabu; Masatsugu Shimomura

Fabrication of block copolymer particles with nano-sized periodic structures

Takeshi Higuchi, Hiroshi Yabu, Masatsugu Shimomura

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to conference › Paper › peer-review

Abstract

It is known that block copolymers are formed micro-phase separation structures in thin films. We have reported that nano-particles can be prepared by adding a poor solvent (i.e. water) into a polymer solution (i.e. tetrahydrofran solution). After evaporation of the good solvent, nano-particles dispersed in the poor solvent were obrained. In this study, we prepared block copolymer (poly(styrene-block-isoprene)) particles by using this method. After selective staining of isoprene double bonds with OsO₄, particles were observed by scanning transmission electron microscopy (STEM). We observed periodic micro-phase separation structures on the surface of the particles. The detail nano-sized phase separation structures on the surface of particles will be discussed.

Original language	English
Pages	946
Number of pages	1
Publication status	Published - 2005
Event	54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27

Conference

Conference	54th SPSJ Annual Meeting 2005
Country/Territory	Japan
City	Yokohama
Period	05/5/25 → 05/5/27

Keywords

Block copolymer
Nano-particles
Phase separation
Self-organization

Cite this

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title = "Fabrication of block copolymer particles with nano-sized periodic structures",

abstract = "It is known that block copolymers are formed micro-phase separation structures in thin films. We have reported that nano-particles can be prepared by adding a poor solvent (i.e. water) into a polymer solution (i.e. tetrahydrofran solution). After evaporation of the good solvent, nano-particles dispersed in the poor solvent were obrained. In this study, we prepared block copolymer (poly(styrene-block-isoprene)) particles by using this method. After selective staining of isoprene double bonds with OsO4, particles were observed by scanning transmission electron microscopy (STEM). We observed periodic micro-phase separation structures on the surface of the particles. The detail nano-sized phase separation structures on the surface of particles will be discussed.",

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author = "Takeshi Higuchi and Hiroshi Yabu and Masatsugu Shimomura",

year = "2005",

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note = "54th SPSJ Annual Meeting 2005 ; Conference date: 25-05-2005 Through 27-05-2005",

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TY - CONF

T1 - Fabrication of block copolymer particles with nano-sized periodic structures

AU - Higuchi, Takeshi

AU - Yabu, Hiroshi

AU - Shimomura, Masatsugu

PY - 2005

Y1 - 2005

N2 - It is known that block copolymers are formed micro-phase separation structures in thin films. We have reported that nano-particles can be prepared by adding a poor solvent (i.e. water) into a polymer solution (i.e. tetrahydrofran solution). After evaporation of the good solvent, nano-particles dispersed in the poor solvent were obrained. In this study, we prepared block copolymer (poly(styrene-block-isoprene)) particles by using this method. After selective staining of isoprene double bonds with OsO4, particles were observed by scanning transmission electron microscopy (STEM). We observed periodic micro-phase separation structures on the surface of the particles. The detail nano-sized phase separation structures on the surface of particles will be discussed.

AB - It is known that block copolymers are formed micro-phase separation structures in thin films. We have reported that nano-particles can be prepared by adding a poor solvent (i.e. water) into a polymer solution (i.e. tetrahydrofran solution). After evaporation of the good solvent, nano-particles dispersed in the poor solvent were obrained. In this study, we prepared block copolymer (poly(styrene-block-isoprene)) particles by using this method. After selective staining of isoprene double bonds with OsO4, particles were observed by scanning transmission electron microscopy (STEM). We observed periodic micro-phase separation structures on the surface of the particles. The detail nano-sized phase separation structures on the surface of particles will be discussed.

KW - Block copolymer

KW - Nano-particles

KW - Phase separation

KW - Self-organization

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M3 - Paper

AN - SCOPUS:33645651077

SP - 946

T2 - 54th SPSJ Annual Meeting 2005

Y2 - 25 May 2005 through 27 May 2005

ER -

Fabrication of block copolymer particles with nano-sized periodic structures

Abstract

Conference

Keywords

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