論文

• Masatoshi Tokita, Kazuya Kato, Ryohei Ishige, Shuhei Okuda, Susumu Kawauchi, Kento Okoshi, Sungmin Kang, Junji Watanabe. Unusual chain configuration of main-chain liquid crystal polyesters having Y-shaped mesogens in nematic phase, Polymer, Vol. 52, pp. 5830-5835, Oct. 2011.
• Susumu Edo, Kento Okoshi, Sungmin Kang, Masatoshi Tokita, Junji Watanabe. Unique Reflection Property Due to Bumpy Multilayer Structure in Elytra of Rhomborrhina unicolor, Jpn. J. Appl. Phys., 49, 047201, Apr. 2010.
• Susumu Edo, Kento Okoshi, Sungmin Kang, Masatoshi Tokita, Tatsuo Kaneko, Junji Watanabe. Unusual Swelling of HPC in Toluene Forming a Microspherical Domain Structure that Causes Christiansen Scattering Coloration, Langmuir, Vol. 26, pp. 1743–1746, Sept. 2009.
• Z.-Q. Wu, K. Nagai, M. Banno, K. Okoshi, K. Onitsuka, E. Yashima. Enantiomer-Selective and Helix-Sense-Selective Living Block Copolymerization of Isocyanide Enantiomers Initiated by Single-Handed Helical Poly(phenyl isocyanide)s, Journal of American Chemical Society, Vol. 131, pp. 6708-6718, 2009.
• T. Kajitani, H. Lin, K. Nagai, K. Okoshi, H. Onouchi, E. Yashima. Helical Polyisocyanides with Fan-Shaped Pendants, Macromolecules, Vol. 42, pp. 560-567, 2009.
• J. Terao, S. Tsuda, Y. Tanaka, K. Okoshi, T. Fujihara, Y. Tsuji, N. Kambe. Synthesis of Organic-Soluble Conjugated Polyrotaxanes by Polymerization of Linked Rotaxanes, Journal of American Chemical Society, Vol. 31, No. 44, pp. 16004-16005, 2009.
• Y. Hase, K. Nagai, H. Iida, K. Maeda, N. Ochi, K. Sawabe, K. Sakajiri, K. Okoshi, E. Yashima. Mechanism of Helix Induction in Poly(4-carboxyphenyl isocyanide) with Chiral Amines and Memory of the Macromolecular Helicity and Its Helical Structures, Journal of American Chemical Society, Vol. 131, pp. 10719-10732, 2009.
• K. Okoshi, A. Suzuki, A. M. Tokita, M. Fujiki, J. Watanabe. Entropically-Driven Formation of Smectic A1, A2, and A3 phases in Binary Mixtures of Rigid-Rod Helical Polysilanes with Different Molecular Weights, Macromolecules, Vol. 42, pp. 3443-3447, 2009.
• K. Okoshi, T. Kajitani, K. Nagai, E. Yashima. Uniaxial Orientation of a Rod-Like Helical Poly(phenylacetylene) in an Electric Field, Macromolecules, Vol. 41, pp. 258-261, 2008.
• K. Okoshi, K. Nagai, T. Kajitani, S.-i. Sakurai, E. Yashima. Anomalous Stiff Backbones of Helical Poly(phenyl isocyanide) Derivatives, Macromolecules, Vol. 41, pp. 7752-7754, 2008.
• T. Maeda, Y. Furusho, S.-i. Sakurai, J. Kumaki, K. Okoshi, E. Yashima. Double-Stranded Helical Polymers Consisting of Complementary Homopolymers, Journal of American Chemical Society, Vol. 130, pp. 7938-7945, 2008.
• T. Kajitani, K. Okoshi, E. Yashima. Helix-Sense Controlled Polymerization of Optically Active Phenyl Isocyanides, Macromolecules, Vol. 41, pp. 1601-1611, 2008.
• T. Kawauchi, J. Kumaki, A. Kitaura, K. Okoshi, H. Kusanagi, K. Kobayashi, T. Sugai, H. Shinohara, E. Yashima. Encapsulation of Fullerenes in a Helical PMMA Cavity Leading to a Robust Processable Complex with a Macromolecular Helicity Memory, Angew. Chem. Int. Ed., Vol. 47, pp. 515-519, 2008.
• H. Onouchi, K. Okoshi, T. Kajitani, S.-i. Sakurai, K. Nagai, J. Kumaki, K. Onitsuka, E. Yashima. Two- and Three Dimensional Smectic Ordering of Single-Handed Helical Polymers, Journal of American Chemical Society, Vol. 130, pp. 229-236, 2008.
• S.-i. Sakurai, S. Osawa, K. Nagai, K. Okoshi, J. Kumaki, E. Yashima. Two-Dimensional Helix-Bundle Formation of a Dynamic Helical Poly(phenylacetylene) with Achiral Pendant Groups on Graphite, Angew. Chem. Int. Ed., Vol. 46, pp. 7605-7608, Jan. 2007.
• J. Kumaki, T. Kawauchi, K. Okoshi, H. Kusanagi, E. Yashima. Supramolecular Helical Structure of the Stereocomplex Composed of Complementary Isotactic and Syndiotactic Poly(methyl methacrylate)s as Revealed by Atomic Force Microscopy, Angew. Chem. Int. Ed., Vol. 46, pp. 5348-5351, 2007.
• K. Okoshi, T. Nishinaka, Y. Doi, R. Hara, M. Hashimoto, E. Yashima. Liquid Crystal Formation of RecA–DNA Filamentous Complexes, Chemical Communications, pp. 2022-2024, 2007.
• Y. Hase, Y. Mitsutsuji, M. Ishikawa, K. Maeda, K. Okoshi, E. Yashima. Unexpected Thermally Stable, Cholesteric Liquid Crystalline Helical Polyisocyanides with Memory of Macromolecular Helicity, Chem. Asian J., Vol. 2, pp. 755-763, 2007.
• M. Ikeda, Y. Furusho, K. Okoshi, S. Tanahara, K. Maeda, S. Nishino, T. Mori, E. Yashima. A Luminescent Poly(phenylenevinylene)-Amylose Composite with Supramolecular Liquid Crystallinity, Angew. Chem. Int. Ed., Vol. 45, pp. 6491-6495, Jan. 2006.
• K. Okoshi, S.-i. Sakurai, S. Ohsawa, J. Kumaki, E. Yashima. Control of Main-Chain Stiffness of a Helical Poly(phenylacetylene) by Switching On and Off the Intramolecular Hydrogen Bonding through Macromolecular Helicity Inversion, Angew. Chem. Int. Ed., Vol. 46, pp. 8173-8175, Jan. 2006.
• A. Saxena, R. Rai, S.-Y. Kim, M. Fujiki, M. Naito, K. Okoshi, G. Kwak. Weak Non-covalent SiF-C Interactions Stabilized Fluoroalkylated Rod-like Polysilanes As Ultrasensitive Chemosensors, J. Polym. Sci., Part A: Polym. Chem., Vol. 44, pp. 5060-5075, Jan. 2006.
• S.-i. Sakurai, K. Okoshi, J. Kumaki, E. Yashima. Two-dimensional hierarchical self-assembly of one-handed helical polymers on graphite, Angew. Chem. Int. Ed., Vol. 45, No. 8, pp. 1245-1248, 2006.
• K. Nagai, K. Sakajiri, K. Maeda, K. Okoshi, T. Sato, E. Yashima. Hierarchical Amplification of Macromolecular Helicity in a Lyotropic Liquid Crystalline Charged Poly(phenylacetylene) by Nonracemic Dopants in Water and Its Helical Structure, Macromolecules, Vol. 39, No. 16, pp. 5371-5380, 2006.
• S.-i. Sakurai, K. Okoshi, J. Kumaki, E. Yashima. Two-Dimensional Surface Chirality Control by Solvent-Induced Helicity Inversion of a Helical Polyacetylene on Graphite, Journal of American Chemical Society, Vol. 128, No. 17, pp. 5650-5651, 2006.
• T. Kajitani, K. Okoshi, S.-i. Sakurai, J. Kumaki, E. Yashima. Helix-Sense Controlled Polymerization of a Single Phenyl Isocyanide Enantiomer Leading to Diastereomeric Helical Polyisocyanides with Opposite Helix-Sense and Cholesteric Liquid Crystals with Opposite Twist-Sense, Journal American Chemical Society, Vol. 128, No. 3, pp. 708-709, 2006.
• K. Okoshi, K. Sakajiri, J. Kumaki, E. Yashima. Well-Defined Lyotropic Liquid Crystalline Properties of Rigid-Rod Helical Polyacetylenes, Macromolecules, Vol. 38, No. 10, pp. 4061-4064, 2005.
• T. Kawauchi, J. Kumaki, K. Okoshi, E. Yashima. Stereocomplex Formation of Isotactic and Syndiotactic Poly(methyl methacrylate)s in Ionic Liquids Leading to Thermoreversible Ion Gels, Macromolecules, Vol. 38, No. 22, pp. 9155-9160, 2005.
• A. Saxena, M. Fujiki, M. Naito, K. Okoshi, G. Kwak. Novel Molecular Weight and Solvatochromisms in Poly(methyl-3,3,3-trifluoro propylsilane) Induced by Cooperative Through-Space Si-F-C Interactions, Macromolecules, Vol. 37, pp. 5873-5879, 2004.
• K. Okoshi, A. Saxena, G. Suzaki, M. Tokita, M. Fujiki, J. Watanabe. Small Angle X-ray Analysis of Smectic A-Cholesteric Liquid Crystal Phase Transition in Rigid-Rod Helical Polysilane, Molecular Crystal and liquid Crystal, Vol. 419, pp. 57-68, 2004.
• G. Guo, M. Naito, M. Fujiki, A. Saxena, K. Okoshi, Y. Yang, M. Ishikawa, T. Hagihara. Room-temperature one-step immobilization of rod-like helical polymer onto hydrophilic substrates, Chemical Communications (Cambridge, United Kingdom), No. 3, pp. 276- 277, 2004.
• A. Saxena, K. Okoshi, M. Fujiki, M. Naito, G. Guo, T. Hagihara, M. Ishikawa. Spectroscopic Evidence of Si-H End Groups in Dialkylpolysilane via Wurtz Coupling, Macromolecules, Vol. 37, pp. 367-370, 2004.
• A. Ohira, K. Okoshi, M. Fujiki, M. Kunitake, M. Naito, T. Hagihara. Versatile Helical Polymer Films: Chiroptical Inversion Switching and Memory with Re-Writable (RW) and Write-Once Read-Many (WORM) Modes, Advanced Materials, Vol. 16, pp. 1645-1650, 2004.
• K. Okoshi, A. Saxena, M. Naito, G. Suzaki, M. Tokita, J. Watanabe, M. Fujiki. First Observation of Smectic A-Cholesteric Phase Transition in Thermotropic Liquid Crystal of Rigid-Rod Helical Polysilane, Liquid Crystals, Vol. 31, No. 2, pp. 279-283, 2004.
• A. Saxena, G. Guo, M. Fujiki, Y. Yang, A. Ohira, K. Okoshi, M. Naito. Helical Polymer Command Surface: Thermo-Driven Chiroptical Transfer and Amplification in Binary Polysilane Film System, Macromolecules, Vol. 37, pp. 3081-3083, 2004.
• K. Okoshi, N. Sano, T. Okumura, Y. Koike, M. Fijiki, J. Watanabe. Christiansen Effect of Brightly Colored Colloidal Solution with an Amphiphilic Polymer, Journal of Colloid and Interface Science, Vol. 263, pp. 473-477, 2003.
• T. Imase, A. Ohira, K. Okoshi, N. Sano, J. Watanabe, M. Kunitake. AFM Study of Two-Dimensional Epitaxial Arrays of Poly(L-glutamates) with Long n-Alkyl Side Chains on Graphite, Macromolecules, Vol. 36, No. 6, pp. 1865-1869, 2003.
• K. Okoshi, H. Kamee, G. Suzaki, M. Tokita, M. Fujiki, J. Watanabe. Well-Defined Phase Sequence Including Cholesteric, Smectic A, and Columnar Phases Observed in a Thermotropic LC System of Simple Rigid-Rod Helical Polysilane, Macromolecules, Vol. 35, No. 12, pp. 4556-4559, 2002.
• K. Okoshi, N. Sano, G. Suzaki, M. Tokita, J. Magoshi, J. Watanabe. Smectic Liquid Crystal Observed in Thermotropic System of Rigid-Rod Poly(gamma-octadecyl-L-glutamate), Japanese Journal of Applied Physics, Vol. 41, No. 6B, pp. L720-722, 2002.
• J. Watanabe, K. Sakajiri, K. Okoshi, S. Kawauchi, J. Magoshi. Columnar Liquid Crystals in Polypeptide, 1 Columnar Hexagonal Phase Observed in Lyotropic Solutions of Poly(gumma-octadecyl-L-glutamate) Dissolved in Amphiphilic Solvents, such as Octadecylamine, Octadecyl Alcohol and Octadecanoic Acid, Macromolecular Chemistry Physics., Vol. 202, pp. 1004-1009, 2001.

著書

• A. Saxena, R Rai, S.-Y. Kim, M. Fujiki, M. Naito, K. Okoshi. Fluoroalkylated Rod-like Polysilanes: From Cooperative Weak Noncovalent Si•••F–C Interactions to Ultrasensitive Chemosensors, Bottom-up Nanofabrication: Supramolecules, Self-Assemblies, and Organized Films, American Scientific Publishers, 2007.

国内会議発表 (査読なし・不明)

• 山本隼, 大越研人, 戸木田雅利, 渡辺順次. 剛直棒状ポリシランとn-アルカン混合系の形成する 枯渇効果による特異なスメクチック相, 第60回高分子学会年次大会, 第60回高分子学会予稿集, Vol. 60, No. 1, May 2011.
• 大越研人, 鈴木瑛子, 戸木田雅利, 藤木道也, 渡辺順次. 長さの異なる剛直棒状ポリシラン二成分混合系の示す特異なスメクチック液晶相, 第58回高分子討論会, 第58回高分子討論会予稿集, 高分子学会, Sept. 2009.
• 大越研人, 鈴木瑛子, 戸木田雅利, 藤木道也, 渡辺順次. 長さの異なる剛直棒状ポリシラン二成分混合系の示す特異なスメクチック液晶相, 第58回高分子学会年次大会, 第58回高分子学会年次大会予稿集, 高分子学会, Vol. 58, May 2009.
• Wu Zong-Quan, 大越研人, 櫻井慎一郎, 永井寛嗣, 熊木治郎, 鬼塚清孝, 八島栄次. 一方向巻きのらせん構造を有するフェニルイソシアニド二元共重合体が形成するバイレイヤースメクチック液晶相, 第57回高分子学会年次大会, 第57回高分子学会年次大会予稿集, 高分子学会, Vol. 57, May 2008.
• 大越研人, 尾之内久成, 梶谷孝, 永井寛嗣, 櫻井慎一郎, 鬼塚清孝, 八島栄次. 一方向巻きのらせん構造を有するポリフェニルイソシアニド誘導体の構造と形成するスメクチック液晶相, 第56回高分子学会年次大会予稿集, Vol. 56, May 2007.
• 尾之内久成, 大越研人, 梶谷孝, 八島栄次, 鬼塚清孝. 一方向巻きのらせん構造を有するポリフェニルイソシアニド誘導体の合成と構造, 第55回高分子討論会, 第55回高分子討論会予稿集, 高分子学会, Vol. 55, Sept. 2006.
• 大越研人, 尾之内久成, 梶谷孝, 櫻井慎一郎, 熊木治郎, 八島栄次. 側鎖アミド基間に分子内水素結合を有するらせんポリイソシアニドの電場配向, 第55回高分子討論会予稿集, Vol. 55, Sept. 2006.
• 大越研人, 櫻井慎一郎, 熊木治郎, 八島栄次. 液晶相を示す剛直棒状ポリフェニルアセチレン誘導体の構造, 第55回高分子学会年次大会, 第55回高分子学会年次大会予稿集, 高分子学会, Vol. 55, May 2006.

その他の論文・著書など

• K. Okoshi, A. Suzuki, M. Tokita, M. Fujki, J. Watanabe. Entropically driven smectic A and A2 phases occurring in binary mixtures of rigid-rod helical polysilanes with different molecular weight, Polymer Preprints (American Chemical Society, Division of Polymer Chemistry), Vol. 50, No. 1, pp. 248-249, Jan. 2009.
• T. Kajitani, K. Okoshi, S.-i. Sakurai, E. Yashima. Helical polyisocyanides with a controlled helix-sense and a supramolecular cholesteric twist-sense, Polymer Preprints (American Chemical Society, Division of Polymer Chemistry), Vol. 47, No. 1, pp. 153-154, 2006.
• S.-i. Sakurai, K. Okoshi, J. Kumaki, E. Yashima. Chiral two-dimensional crystals of one-handed helical polyacetylenes on solid surfaces, Polymer Preprints (American Chemical Society, Division of Polymer Chemistry), Vol. 47, No. 2, pp. 368-369, 2006.
• M. Naito, G. Guo, N. Saeki, A. Saxena, Y. Yang, A. Ohira, T. Hagihara, M. Ishikawa, K. Okoshi, M. Fujiki. One-step immobilization of stiff polysilane onto substrates at room temperature, PMSE Preprints, Vol. 90, pp. 475-476, 2004.
• Okoshi, K., Yuasa, K., Moriwaki, F., Kofuji, T.. FLCP Polymer and Plastic Substrate for Use in a Large-Area Optical Shutter for 3-D TV, SID ’98 Digest, Vol. 44.4L, pp. 1135-1142, 1998.
• 大越研人. 液晶中イオン性不純物に関する研究動向, 出光技報, Vol. 41, No. 5, pp. 492-496, 1998.
• 大越研人. ＬＣＤの大画面化～強誘電性高分子液晶パネル～, 電子材料, Vol. 34, No. 12, pp. 43-47, 1995.
• 大越研人. タンパク質ハイブリッド, 出光技報, Vol. 36, pp. 57-61, 1993.

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