Koji Ando, Takahiko Yamanaka, Shigeru Okamoto, Tadashi Inoue, Naoki Sakamoto, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Microphase Separation Induced by Differentiating Non-Solvent in a Semi-Dilute Solution Studied by Rheometry and SANS”
IOP Conf. Ser.: Mater. Sci. Eng., Vol. 14, 012012-1 – 012012-10 (2010)
【概要】超高分子量のポリスチレン-b-ポリ(t-ブチルメタクリレート）ジブロック共重合体のテトラヒドロフラン準希薄溶液は無秩序状態であったが、水（分化誘導非溶媒）を添加したところミクロ相分離が発現した。さらなる添加で秩序ー秩序転移も観察された。この相転移現象を動的粘弾性測定および小角中性子散乱測定により観察した。これによりテトラヒドロフランと水との混合溶媒の選択性が重要である事が分かった。

Shigeru Okamoto, Shinpei Ito, Koji Ando, Masahiro Mouri, Akihiko Ikeda, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Gelation of Photonic Microdomain Structures Formed in Semi-Dilute Solutions of Ultra-High-Molecular-Weight Polystyrene-b-Polybutadiene with Various Polybutadiene Contents”
IOP Conf. Ser.: Mater. Sci. and Eng., Vol. 14, 012008-1 – 012008-14 (2010)
【概要】超高分子量ブロック共重合体の準希薄溶液中において形成されたミクロドメイン構造を、その秩序性を低下させる事なくゲル化により構造固定することに成功した。ポリスチレン-b-ポリブタジエン　ジブロック共重合体を用いた。ポリブタジエンは1,2-結合からなり、側鎖のビニル基を用いてゲル化を行った。ポリブタジエン組成が５０vol.%以上のブロック共重合体において、秩序性の低下が見られなかった。（井上正志：粘弾性測定）

Koji Ando, Takahiko Yamanaka, Shigeru Okamoto, Naoki Sakamoto, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“SCFT Simulation and SANS Study on Spatial Distribution of Solvents in Microphase Separation Induced by a Differentiating Non-Solvent in a Semi-Dilute Solution of an Ultra-High- Molecular-Weight Block Copolymer”
J. Phys.; Conf. Ser., Vol. 247, 012040-1 – 012040-11 (2010)
【概要】超高分子量のポリスチレン-b-ポリ(t-ブチルメタクリレート)ジブロック共重合体のテトラヒドロフラン準希薄溶液に水という分化誘導非溶媒を添加することにより観察された、秩序-無秩序転移および秩序-秩序転移現象にともなう溶媒の空間分布の変化を小角中性子散乱測定のコントラストバリエーション法により観察した。その結果を自己無撞着場に基づく計算機シミュレーション結果と比較検討した。水の添加によりテトラヒドロフランの空間分布も大きく変化を受け、これが相転移の駆動力である事が分かった。（井上正志：粘弾性測定）

岡本茂
“高分子ブロック共重合体を用いたフォトニック結晶の創成”
高分子, Vol. 59, 334-335 (2010)
【概要】超高分子量ブロック共重合体のミクロドメイン構造が構造色を示すことを紹介し、フォトニック結晶への応用について概説した。また、準希薄溶液中で形成されるミクロドメイン構造はミクロ相転移近傍において巨大なグレインへと成長し、非常に秩序性の高い階層構造を形成する事を紹介し、さらにこの構造のレーザー共振器への応用について説明した。

岡本茂
“フォトニック結晶としてのブロックポリマー”
EKISHO, Vol. 14, 91(13)-97(19) (2010)
【概要】ブロック共重合体の配向制御に関する背景と、超高分子量ブロックコポリマーでの配向制御の難しさを紹介し、準希薄溶液を用いるメリットについて説明した。また、混合溶媒の選択性によるミクロ相分離発現のメカニズムについて、自己無撞着場理論に基づくシミュレーションを用いて概説した。さらにこの構造を用いたフォトニック結晶の創製について紹介した。

Oral / Invited
Shigeru Okamoto, Koji Ando, Yuusuke Yoshida, Kazuhiro Wakita, Akihiro Iwata, Kazuhiro Sato, Tatsuhiro Iwama, Kosuke Tsuchiya, Akihiko Ikeda, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Photonic Crystals Fabricated in Semi-Dilute Solutions of Ultra-High-Molecular-Weight Block Copolymers”
POLYCHAR 19 (Mar. 20-24, 2011), Kathmandu, Nepal

Oral / Contributed
Takayuki Suzuki, Koji Ando, Shigeru Okamoto, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, Naoki Sakamoto and Naokiyo Koshikawa
“Ordering’ of Microphase-separated Structures Induced by Mechanical Stimuli in a Semidilute Solution of an Ultra-high-molecuar-weight Block Copolymer”
6th International Workshop for East Asian Young Rheologist (Jan. 20-22, 2011), Yamagata, Japan

Oral / Contributed
Akihiko Iwata, Shigeru Okamoto, Tomokatsu Hayakawa, Naoki Sakamoto, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Anisotropic Nonlinear Optical Properties of Gold Nanorods introduced in Block Copolymers”
6th International Workshop for East Asian Young Rheologist (Jan. 20-22, 2011), Yamagata, Japan

Oral / Contributed
Akifumi Matsushita, Shigeru Okamoto, Eiko Tamura, and Tadashi Inoue
“Grain Growth Process Studied by SAXS and Rheology”
6th International Workshop for East Asian Young Rheologist (Jan. 20-22, 2011), Yamagata, Japan
（井上正志：粘弾性測定）

Oral / Invited
Shigeru Okamoto, Koji Ando, Kazuhiro Sato, Takahiko Yamanaka, Masahiro Mouri, Akihiko Ikeda, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Giant Single Crystals of Block Copolymers”
The International Chemical Congress of Pacific Basin Societies (Dec. 15-20, 2010), Honolulu, US

Oral / Contributed
Koji Ando, Shigeru Okamoto, Naoki Sakamoto, Tadashi Inoue, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“The Evaluation of Distribution of Differentiating Non-Solvent in the Semi-Dilute Block Copolymer Solution”
The International Chemical Congress of Pacific Basin Societies (Dec. 15-20, 2010), Honolulu, US

Oral / Invited
S. Okamoto, K. Ando, Y. Yoshida, K. Wakita, A. Matsushita, A. Ikeda, H. Hasegawa, and N. Koshikawa
“Universality of Microphase Separation Induced by Strongly Selective Solvents in Semi-Dilute Solutions of Block Copolymers”
International Symposium on Non-Equilibrium Soft Matter (Aug. 17-20, 2010), Nara, Japan

Oral / Contributed
Shigeru okamoto, Kazuhiro Sato, Shinpei Ito, Naoki Sakamoto, Akihiko Ikeda, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Microdomain Structures Formed in Semi-Dilute Solutions of Ultra-High-Molecular-Weight PS-b-PB Induced by Differentiating Non-Solvent”
5th Pacific Rim Conference on Rheology (Aug. 1-6, 2010), Sapporo, Japan

Oral / Contributed
Koji Ando, Takahiko Yamanaka, Shigeru Okamoto, Naoki Sakamoto, Tadashi Inoue, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“SANS, Rheometry and Computer Simulation Studies on Formation Mechanism of Microdomain Structures Induced by a Differentiating Non-Solvent in a Semi-dilute Solution”
5th Pacific Rim Conference on Rheology (Aug. 1-6, 2010), Sapporo, Japan
（井上正志：粘弾性測定）

Oral / Contributed
Naoki Shiba, Takahiko Yamanaka, Shigeru Okamoto, Naoki Sakamoto, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Wavelength-Variable Laser Resonator Fabricated Using a Giant Grain Formed in a Semi-Dilute Solution of an Ultra-High-Molecular-Weight Block Copolymer”
The 1st FAPS Polymer Congress (Oct. 20-23, 2009), Nagoya, Japan

Oral / Contributed
Shigeru Okamoto, Koji Sumi, Naoki Shiba, Aumi Miyata, Takahiko Yamanaka, Shinpei Ito, Tatsuhiro Iwama, Naoki Sakamoto, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Giant Grain Formation in a Semi-Dilute Solution of an Ultra-High-Molecular-Weight Block Copolymer and its Application to Photonic Crystals”
The 1st FAPS Polymer Congress (Oct. 20-23, 2009), Nagoya, Japan

Oral / Contributed
Koji Sumi, Takahiko Yamanaka, Shigeru Okamoto, Tadashi Inoue, Naoki Sakamoto, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Microphase Separation and Order-Order Transition Induced by Non-Solvent in a Semi-Dilute solution of an Ultra-High-Molecular-Weight Block Copolymer”
The 1st FAPS Polymer Congress (Oct. 20-23, 2009), Nagoya, Japan
（岡本茂：中性子散乱測定、井上正志：レオロジー測定）

Poster / Contributed
Shigeru Okamoto, Kazuhiro Sato, Shinpi Ito, Ichi Takumi, Naoki Sakamoto, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Formation and Electric-Field-Induced Alignment of Highly-Ordered Microdomain Structures in a Semi-Dilute Solution of a Block Copolymer”
XIV International Conference on Small-Angle Scattering (Sep. 13-18, 2009), Oxford, UK

Poster / Contributed
Koji Sumi, Takahiko Yamanaka, Shigeru Okamoto, Naoki Sakamoto, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Microphase Separation Induced by Highly-Selective-Solvent in a Semi-Dilute Solution of an Ultra-High-Molecular-Weight Block Copolymer”
XIV International Conference on Small-Angle Scattering (Sep. 13-18, 2009), Oxford, UK

Oral / Contributed
Koji Sumi, Takahiko Yamanaka, Shigeru Okamoto, Tadashi Inoue, Naoki Sakamoto, Daisuke Yamaguchi, Satoshi Koizumi, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Microphase Separtion Induced by Highly-Selective-Solvent in a Semi-Dilute Solution Studied by Rheometry and SANS”
Syncrotron Radiation in Polymer Science 4 (Sep. 8-11, 2009), Kerkrade, The Netherlands
（岡本茂：中性子散乱測定、井上正志：レオロジー測定）

Oral / Contributed
Shigeru Okamoto, Shinpei Ito, Koji Sumi, Masahiro Mouri, Akihiko Ikeda, Hirokazu Hasegawa, and Naokiyo Koshikawa
“Formation and Fixation of Microdomain Structures in Semi-Dilute Solutions of Ultra-High-Molecular-Weight Block Copolymers and its Application for Photonic Crystals”
Synchrotron Radiation in Polymer Science 4 (Sep. 8-11, 2009), Kerkrade, The Netherlands

Oral / Contributed
Shigeru Okamoto
“Small-Angle X-ray and Neutron Scattering Study on Microphase Separation Induced by Non-Solvent in a Semi-Dilute Solution of an Ultra-High-Molecular-Weight Block Copolymer”
International Conference on Neutron and X-ray Scattering 2009 (Jun. 29 – Jul. 1), Kuala Lumpur, Malaysia