研究業績

2017年

  1. Akihiro Yokoyama; Jinya Kuramochi; Ryohei Kiyota; Kazuki Kishimoto; Kazuto Takaishi; Tsutomu Yokozawa "Polymerization of 2,5-diaminoterephthalic acid-type monomers for the synthesis of polyamides containing ladder unit" J. Polym. Sci., Part A: Polym. Chem.201755, 2365-2372 (doi: 10.1002/pola.28625).

2015年

  1. Akihiro Yokoyama; Suguru Nakano; Tomoaki Saiki; Tsutomu Yokozawa "Poly(p-benzamide) having isopropyl-substituted chiral tri(ethylene glycol) side chain: Synthesis and helical conformation," J. Polym. Sci., Part A: Polym. Chem., 2015, 53, 1623-1628 (doi: 10.1002/pola.27608).
  2. Akihiro Yokoyama; Makoto Karasawa; Ryohei Kiyota; Masahisa Taniguchi; Yuta Hirano; Yoshihiro Ohta; Tsutomu Yokozawa "Polymerization of 4,6-diaminoisophthalic acid-type monomers bearing anthranilic acid ester and isatoic anhydride moieties," Polym. J., 2015, 47, 348-351 (doi: 10.1038/pj.2014.105).
  3. Kazuto Takaishi; Jun Suzuki; Tatsuya Yabe; Hikaru Asano; Michihiro Nishikawa; Daisuke Hashizume; Atsuya Muranaka; Masanobu Uchiyama; Akihiro Yokoyama "Conformational and optical characteristics of unidirectionally twisted binaphthyl-bipyridyl cyclic dyads," Org. Lett., 2015, 17, 4098-4101 (doi: 10.1021/acs.orglett.5b02041).

2014年

  1. Akihiro Yokoyama; Natsumi Kawano; Yuka Wada; Michihiro Nishikawa; Kazuto Takaishi; Tsutomu Yokozawa "Crystal structure of N-isopropylanthranilic acid trimer," X-Ray Struct. Anal. Online, 2014, 30, 35-36 (doi: 10.2116/xraystruct.30.35).
  2. Kazuto Takaishi; Tatsuya Yabe; Masanobu Uchiyama; Akihiro Yokoyama "Binaphthyl-based chiral macrocyclophanes with variously sized cavities: Dn-symmetrical structure constructed from unidirectionally-inclined rod segments," Tetrahedron, 2014, 70, 730-734 (doi: 10.1016/j.tet.2013.11.081).
  3. Yoshihiro Ohta; Tetsurou Niiyama; Akihiro Yokoyama; Tsutomu Yokozawa "Chain-growth condensation polymerization approach to synthesis of well-defined polybenzoxazole: Importance of higher reactivity of 3-amino-4-hydroxybenzoic acid ester compared to 4-amino-3-hydroxybenzoic acid ester," J. Polym. Sci., Part A: Polym. Chem., 2014, 52, 1730-1736 (doi: 10.1002/pola.27174).
  4. Yoshihiro Ohta; Makoto Karasawa; Tetsurou Niiyama; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined, soluble poly(3-alkyl-4-benzamide) by chain-growth condensation polymerization," J. Polym. Sci., Part A: Polym. Chem., 2014, 52, 360-365 (doi: 10.1002/pola.27008).

2013年

  1. Akihiro Yokoyama; Makoto Karasawa; Masahisa Taniguchi; Tsutomu Yokozawa "Successive formation of two amide linkages between two benzene rings," Chem. Lett., 2013, 42, 641-642 (doi: 10.1246/cl.130143).
  2. Yoshihiro Ohta; Tadahiko Shirakura; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of polystyrene-graft-poly(p-benzamide) by chain-growth condensation polymerization and radical polymerization: Improvement of thermal properties of polystyrene," J. Polym. Sci., Part A: Polym. Chem., 2013, 51, 1887-1892 (doi: 10.1002/pola.26548).
  3. Yoshihiro Ohta; Teruaki Kanou; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined, amphiphilic poly(ethylene glycol)-b-hyperbranched polyamide," J. Polym. Sci., Part A: Polym. Chem., 2013, 51, 3762-3766 (doi: 10.1002/pola.26762).
  4. Hisato Ishikawa; Takayuki Sugiyama; Akihiro Yokoyama "Synthesis of 2,3-bis(halomethyl)quinoxaline derivatives and evaluation of their antibacterial and antifungal activities," Chem. Pharm. Bull., 2013, 61, 438-444 (doi: 10.1248/cpb.c12-01061).
  5. 【紀要】倉持甚也, 高石和人, 横山明弘, 坪村太郎, 戸谷希一郎 "ハイスループット核磁気共鳴装置の使用で得られた研究成果", 成蹊大学理工学研究報告, 2013, 50, 101-106.

2012年

  1. Yuka Yamazaki; Akihiro Yokoyama; Tsutomu Yokozawa "Three-arm star block copolymers of aromatic polyether and polystyrene from chain-growth condensation polymerization, atom transfer radical polymerization, and click reaction," J. Polym. Sci., Part A: Polym. Chem., 2012, 50, 3648-3655 (doi: 10.1002/pola.26155).
  2. Tomoko Yamaguchi; Shinya Watanabe; Yuriko Matsumura; Yoshikazu Tokuoka; Akihiro Yokoyama "Oxovanadium complexes with quinoline and pyridinone ligands: Syntheses of the complexes and effect of alkyl chains on their apoptosis-inducing activity in leukemia cells," Bioorg. Med. Chem., 2012, 20, 3058-3064 (doi: 10.1016/j.bmc.2012.02.063).
  3. Tomoko Yamaguchi; Shinya Watanabe; Yuriko Matsumura; Yoshikazu Tokuoka; Akihiro Yokoyama "Synthesis of oxovanadium complexes and their apoptosis-inducing activity in leukemia cells," Chem. Pharm. Bull., 2012, 60, 508-512 (doi: 10.1248/cpb.60.508).
  4. Yoshihiro Ohta; Yusuke Kamijyo; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined, water-soluble hyperbranched polyamides by chain-growth condensation polymerization of AB2 monomer," Polymers, 2012, 4, 1170-1182 (doi: 10.3390/polym4021170).
  5. Yutaka Nanashima; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of novel blue-light-emitting polypyridine," J. Polym. Sci., Part A: Polym. Chem., 2012, 50, 1054-1061 (doi: 10.1002/pola.25891).
  6. Yutaka Nanashima; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Well-Defined Poly(2-alkoxypyridine-3,5-diyl) via Ni-Catalyst-Transfer Condensation Polymerization," Macromolecules, 2012, 45, 2609-2613 (doi: 10.1021/ma202756y).
  7. Yutaka Nanashima; Rena Shibata; Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Investigation of catalyst-transfer condensation polymerization for the synthesis of n-type π-conjugated polymer, poly(2-dioxaalkylpyridine-3,6-diyl)," J. Polym. Sci., Part A: Polym. Chem., 2012, 50, 3628-3640 (doi: 10.1002/pola.26152).
  8. Hisato Ishikawa; Takayuki Sugiyama; Keisuke Kurita; Akihiro Yokoyama "Synthesis and antimicrobial activity of 2,3-bis(bromomethyl)quinoxaline derivatives," Bioorg. Chem., 2012, 41-42, 1-5 (doi: 10.1016/j.bioorg.2011.12.002).

2011年

  1. Kazuo Yoshino; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of a variety of star-shaped polybenzamides via chain-growth condensation polymerization with tetrafunctional porphyrin initiator," J. Polym. Sci., Part A: Polym. Chem., 2011, 49, 986-994 (doi: 10.1002/pola.24511).
  2. Tsutomu Yokozawa; Ryosuke Suzuki; Masataka Nojima; Yoshihiro Ohta; Akihiro Yokoyama "Precision Synthesis of Poly(3-hexylthiophene) from Catalyst-Transfer Suzuki-Miyaura Coupling Polymerization," Macromol. Rapid Commun., 2011, 32, 801-806 (doi: 10.1002/marc.201100037).
  3. Akihiro Yokoyama; Yuko Inagaki; Tomomi Ono; Tsutomu Yokozawa "Synthesis and helical properties of N-substituted p-benzamide random copolymers possessing chiral/achiral and (S)/(R) side chains," J. Polym. Sci., Part A: Polym. Chem., 2011, 49, 1387-1395 (doi: 10.1002/pola.24559).
  4. Yoshihiro Ohta; Yusuke Kamijyo; Shuichi Fujii; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis and Properties of a Variety of Well-Defined Hyperbranched N-Alkyl and N-H Polyamides by Chain-Growth Condensation Polymerization of AB2 Monomers," Macromolecules, 2011, 44, 5112-5122 (doi: 10.1021/ma200980t).
  5. Tomoyuki Ohishi; Toshiya Suzuki; Tetsurou Niiyama; Koichiro Mikami; Akihiro Yokoyama; Kosuke Katagiri; Isao Azumaya; Tsutomu Yokozawa "Synthesis of linear and cyclic aromatic peptides with fixed conformation owing to intramolecular hydrogen bonding by condensation polymerization method," Tetrahedron Lett., 2011, 52, 7067-7070 (doi: 10.1016/j.tetlet.2011.10.071).
  6. Koichiro Mikami; Hiroaki Daikuhara; Jyunya Kasama; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of poly(naphthalenecarboxamide)s with low polydispersity by chain-growth condensation polymerization," J. Polym. Sci., Part A: Polym. Chem., 2011, 49, 3020-3029 (doi: 10.1002/pola.24737).
  7. Koichiro Mikami; Hiroaki Daikuhara; Yuko Inagaki; Akihiro Yokoyama; Tsutomu Yokozawa "Chiral Amplification Based on Sergeants and Soldiers Effect in Helically Folded Poly(naphthalenecarboxamide)," Macromolecules, 2011, 44, 3185-3188 (doi: 10.1021/ma200055g).
  8. Chih-Feng Huang; Yoshihiro Ohta; Akihiro Yokoyama; Tsutomu Yokozawa "Efficient Low-Temperature Atom Transfer Radical Coupling and Its Application to Synthesis of Well-Defined Symmetrical Polybenzamides," Macromolecules, 2011, 44, 4140-4148 (doi: 10.1021/ma200494m).
  9. 【紀要】横山明弘 "N-置換芳香族アミド結合を使ったらせんおよび環状分子の合成", 成蹊大学理工学研究報告, 2011, 48, 47-52.

2011年以前

  1. Kazuo Yoshino; Kotaro Hachiman; Akihiro Yokoyama; Tsutomu Yokozawa "Chain-growth condensation polymerization of 4-aminobenzoic acid esters bearing tri(ethylene glycol) side chain with lithium amide base," J. Polym. Sci., Part A: Polym. Chem., 2010, 48, 1357-1363 (doi: 10.1002/pola.23897).
  2. Tsutomu Yokozawa; Haruhiko Kohno; Yoshihiro Ohta; Akihiro Yokoyama "Catalyst-Transfer Suzuki-Miyaura Coupling Polymerization for Precision Synthesis of Poly(p-phenylene)," Macromolecules, 2010, 43, 7095-7100 (doi: 10.1021/ma101073x).
  3. Tomoyuki Ohishi; Tomohiro Masukawa; Shuichi Fujii; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Core Cross-Linked Star Polymers Consisting of Well-Defined Aromatic Polyamide Arms," Macromolecules, 2010, 43, 3206-3214 (doi: 10.1021/ma902412t).
  4. Chih-Feng Huang; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of polybenzamide-b-polystyrene block copolymer via combination of chain-growth condensation polymerization and atom transfer radical polymerization," J. Polym. Sci., Part A: Polym. Chem., 2010, 48, 2948-2954 (doi: 10.1002/pola.24068).
  5. Kazuo Yoshino; Akihiro Yokoyama; Tsutomu Yokozawa "Well-defined star-shaped poly(p-benzamide) via chain-growth condensation polymerization: Use of tetra-functional porphyrin initiator to optimize star polymer formation," J. Polym. Sci., Part A: Polym. Chem., 2009, 47, 6328-6332 (doi: 10.1002/pola.23686).
  6. Akihiro Yokoyama; Tomohiro Masukawa; Yuka Yamazaki; Tsutomu Yokozawa "Successive chain-growth condensation polymerization for the synthesis of well-defined diblock copolymers of aromatic polyamide and aromatic polyether," Macromol. Rapid Commun., 2009, 30, 24-28 (doi: 10.1002/marc.200800546).
  7. Yuka Yamazaki; Naomi Ajioka; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Well-Defined Miktoarm Star Copolymers of Aromatic Polyether and Polystyrene by Chain-Growth Condensation Polymerization and Atom Transfer Radical Polymerization," Macromolecules, 2009, 42, 606-611 (doi: 10.1021/ma802317j).
  8. Yoshihiro Ohta; Shuichi Fujii; Akihiro Yokoyama; Taniyuki Furuyama; Masanobu Uchiyama; Tsutomu Yokozawa "Synthesis of Well-Defined Hyperbranched Polyamides by Condensation Polymerization of AB2 Monomer through Changed Substituent Effects," Angew. Chem., Int. Ed., 2009, 48, 5942-5945 (doi: 10.1002/anie.200901714).
  9. Koichiro Mikami; Aya Tanatani; Akihiro Yokoyama; Tsutomu Yokozawa "Helical Folding of Poly(naphthalenecarboxamide) Prompted by Solvophobic Effect," Macromolecules, 2009, 42, 3849-3851 (doi: 10.1021/ma900663q).
  10. Tomohiro Masukawa; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Well-Defined Polybenzamide-block-Polystyrene by Combination of Chain-Growth Condensation Polymerization and RAFT Polymerization," Macromol. Rapid Commun., 2009, 30, 1413-1418 (doi: 10.1002/marc.200900150).
  11. 【総説】Tsutomu Yokozawa; Akihiro Yokoyama "Chain-Growth Condensation Polymerization for the Synthesis of Well-Defined Condensation Polymers and π-Conjugated Polymers," Chem. Rev., 2009, 109, 5595-5619 (doi: 10.1021/cr900041c).
  12. 【総説】横澤 勉,横山明弘, "リビング重合系縮合重合によるπ共役系高分子の精密合成," 化学と工業, 2009, 62, 622-625.
  13. 【総説】大石智之, 横山明弘, 横澤 勉, "縮合系高分子," 色材協会誌, 2009, 82, 36-42.
  14. Naomi Ajioka; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined rod-coil diblock copolymer of aromatic polyether and polyacrylonitrile by chain-growth condensation polymerization and atom transfer radical polymerization," Macromol. Rapid Commun., 2008, 29, 665-671 (doi: 10.1002/marc.200700862).
  15. Akihiro Yokoyama; Yuuki Shimizu; Jun-ichiro Saito; Tsutomu Yokozawa "Base-promoted condensation polymerization of aminoesters with diphenylacetylene and trans-stilbene backbones," Chem. Lett., 2008, 37, 8-9 (doi: 10.1246/cl.2008.8).
  16. Akihiro Yokoyama; Takurou Maruyama; Kei Tagami; Hyuma Masu; Kosuke Katagiri; Isao Azumaya; Tsutomu Yokozawa "One-pot synthesis of cyclic triamides with a triangular cavity from trans-stilbene and diphenylacetylene monomers," Org. Lett., 2008, 10, 3207-3210 (doi: 10.1021/ol801083r).
  17. Akihiro Yokoyama; Akira Kato; Ryo Miyakoshi; Tsutomu Yokozawa "Precision synthesis of poly(N-hexylpyrrole) and its diblock copolymer with poly(p-phenylene) via catalyst-transfer polycondensation," Macromolecules, 2008, 41, 7271-7273 (doi: 10.1021/ma8017124).
  18. Tomoyuki Ohishi; Ryuji Sugi; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis via Chain-Growth Condensation Polymerization and Gelating Properties of a Variety of Block Copolymers of Meta- and Para-Substituted Aromatic Polyamides," Macromolecules, 2008, 41, 9683-9691 (doi: 10.1021/ma801280y).
  19. Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Development of catalyst-transfer condensation polymerization. Synthesis of π-conjugated polymers with controlled molecular weight and low polydispersity," J. Polym. Sci., Part A: Polym. Chem., 2008, 46, 753-765 (doi: 10.1002/pola.22389).
  20. Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Importance of the order of successive catalyst-transfer condensation polymerization in the synthesis of block copolymers of polythiophene and poly(p-phenylene)," Chem. Lett., 2008, 37, 1022-1023 (doi: 10.1246/cl.2008.1022).
  21. 【総説】横山明弘, "N-アルキル芳香族アミド結合を利用したラセン構造の構築と中空環状化合物の合成," 超分子研究会アニュアルレビュー, 2008, 29, 6-7.
  22. 【総説】Tsutomu Yokozawa, Naomi Ajioka, Akihiro Yokoyama, "Reaction control in condensation polymerization," Adv. Polym. Sci., 2008, 217, 1-77 (doi: 10.1007/12_2007_125).
  23. Tsutomu Yokozawa; Isao Adachi; Ryo Miyakoshi; Akihiro Yokoyama "Catalyst-transfer condensation polymerization for the synthesis of well-defined polythiophene with hydrophilic side chain and of diblock copolythiophene with hydrophilic and hydrophobic side Chains," High Perform. Polym., 2007, 19, 684-699 (doi: 10.1177/0954008307081212).
  24. Akihiro Yokoyama; Hirofumi Suzuki; Yasuhiro Kubota; Kazuei Ohuchi; Hideyuki Higashimura; Tsutomu Yokozawa "Chain-Growth Polymerization for the Synthesis of Polyfluorene via Suzuki-Miyaura Coupling Reaction from an Externally Added Initiator Unit," J. Am. Chem. Soc., 2007, 129, 7236-7237 (doi: 10.1021/ja070313v).
  25. Sunwook Kim; Yoichi Kakuda; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of controlled rod-coil block copolymers by a macroinitiator method: chain-growth polycondensation for an aromatic polyamide from a polystyrene macroinitiator," J. Polym. Sci., Part A: Polym. Chem., 2007, 45, 3129-3133 (doi: 10.1002/pola.22042).
  26. Naomi Ajioka; Yukimitsu Suzuki; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Well-Defined Polystyrene-b-Aromatic Polyether Using an Orthogonal Initiator for Atom Transfer Radical Polymerization and Chain-Growth Condensation Polymerization," Macromolecules, 2007, 40, 5294-5300 (doi: 10.1021/ma070321w).
  27. 【総説】Akihiro Yokoyama; Tsutomu Yokozawa "Converting Step-Growth to Chain-Growth Condensation Polymerization," Macromolecules, 2007, 40, 4093-4101 (doi: 10.1021/ma061357b).
  28. 【総説】Tsutomu Yokozawa, Akihiro Yokoyama, "Chain-growth polycondensation: The living polymerization process in polycondensation," Prog. Polym. Sci., 2007, 32, 147-172 (doi: 10.1016/j.progpolymsci.2006.08.001).
  29. 【総説】味岡直己, 横山明弘, 横澤 勉, "縮合系高分子アーキテクチャーとその自己組織化," 高分子論文集, 2007, 64, 907-921.
  30. Akihiro Yokoyama; Yuuki Nonaka; Daisuke Uchida; Shuichi Hiraoka; Tsutomu Yokozawa "Convergent access to macrocycles via reversible transacetalization," Chem. Lett., 2006, 35, 424-425 (doi: 10.1246/cl.2006.424).
  31. Kanami Yamazaki; Akihiro Yokoyama; Tsutomu Yokozawa "Solvent and Temperature Effect on Chiral Conformation of Poly(m-benzamide)s," Macromolecules, 2006, 39, 2432-2434 (doi: 10.1021/ma052712l).
  32. Ryuji Sugi; Tomoyuki Ohishi; Akihiro Yokoyama; Tsutomu Yokozawa "Novel water-soluble poly(m-benzamide)s: precision synthesis and thermosensitivity in aqueous solution," Macromol. Rapid Commun., 2006, 27, 716-721 (doi: 10.1002/marc.200600038).
  33. Tomoyuki Ohishi; Ryuji Sugi; Akihiro Yokoyama; Tsutomu Yokozawa "A variety of poly(m-benzamide)s with low polydispersities from inductive effect-assisted chain-growth polycondensation," J. Polym. Sci., Part A: Polym. Chem., 2006, 44, 4990-5003 (doi: 10.1002/pola.21616).
  34. Ryo Miyakoshi; Kyohei Shimono; Akihiro Yokoyama; Tsutomu Yokozawa "Catalyst-Transfer Polycondensation for the Synthesis of Poly(p-phenylene) with Controlled Molecular Weight and Low Polydispersity," J. Am. Chem. Soc., 2006, 128, 16012-16013 (doi: 10.1021/ja067107s).
  35. Isao Adachi; Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of Well-Defined Polythiophene with Oxyethylene Side Chain: Effect of Phosphine Ligands on Catalyst-Transfer Polycondensation," Macromolecules, 2006, 39, 7793-7795 (doi: 10.1021/ma061809k).
  36. 【総説】横澤 勉,横山明弘, "縮合重合におけるリビング重合系の進展," 化学と工業, 2006, 59, 1160-1163.
  37. 【総説】宮越 亮, 横山明弘, 横澤 勉, "リビング重合による縮合系高分子の合成," 触媒, 2006, 48, 189-194.
  38. Tsutomu Yokozawa; Daichi Muroya; Ryuji Sugi; Akihiro Yokoyama "Convenient method of chain-growth polycondensation for well-defined aromatic polyamides," Macromol. Rapid Commun., 2005, 26, 979-981 (doi: 10.1002/marc.200500109).
  39. Akihiro Yokoyama; Yuuki Shimizu; Tsutomu Yokozawa "Selective cyclic trimerization of 4-(alkylamino)benzoic acid dimer phenyl esters," Chem. Lett., 2005, 34, 1128-1129 (doi: 10.1246/cl.2005.1128).
  40. Akihiro Yokoyama; Shunsuke Saito; Yuuki Shimizu; Tsutomu Yokozawa "Effect of substituent orientation on selectivity between polymerization and cyclization: Polycondensation of (alkylamino)benzoic acid dimer phenyl esters," Macromol. Rapid Commun., 2005, 26, 1931-1935 (doi: 10.1002/marc.200500626).
  41. Aya Tanatani; Akihiro Yokoyama; Isao Azumaya; Yoshinori Takakura; Chikashi Mitsui; Motoo Shiro; Masanobu Uchiyama; Atsuya Muranaka; Nagao Kobayashi; Tsutomu Yokozawa "Helical Structures of N-Alkylated Poly(p-benzamide)s," J. Am. Chem. Soc., 2005, 127, 8553-8561 (doi: 10.1021/ja0455291).
  42. Ryuji Sugi; Akihiro Yokoyama; Taniyuki Furuyama; Masanobu Uchiyama; Tsutomu Yokozawa "Inductive Effect-Assisted Chain-Growth Polycondensation. Synthetic Development from para- to meta-Substituted Aromatic Polyamides with Low Polydispersities," J. Am. Chem. Soc., 2005, 127, 10172-10173 (doi: 10.1021/ja052566z).
  43. Ryuji Sugi; Yoshio Hitaka; Akihiro Yokoyama; Tsutomu Yokozawa "Well-Defined Star-Shaped Aromatic Polyamides from Chain-Growth Polymerization of Phenyl 4-(Alkylamino)benzoate with Multifunctional Initiators," Macromolecules, 2005, 38, 5526-5531 (doi: 10.1021/ma0473420).
  44. Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Catalyst-Transfer Polycondensation. Mechanism of Ni-Catalyzed Chain-Growth Polymerization Leading to Well-Defined Poly(3-hexylthiophene)," J. Am. Chem. Soc., 2005, 127, 17542-17547 (doi: 10.1021/ja0556880).
  45. Ken-Ichi Iwashita; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined aromatic polyesters by chain-growth polycondensation under suppression of transesterification," J. Polym. Sci., Part A: Polym. Chem., 2005, 43, 4109-4117 (doi: 10.1002/pola.20907).
  46. 【総説】Tsutomu Yokozawa, Akihiro Yokoyama, "Chain-Growth Polycondensation for Well-Defined Condensation Polymers and Polymer Architecture," Chem. Rec., 2005, 5, 47-57.
  47. 【総説】横山明弘, "重縮合における環状化合物の自発的生成", 高分子, 2005, 54, 822 (doi: 10.1295/kobunshi.54.822).
  48. 【総説】横澤 勉, 横山明弘, "縮合系高分子の長さを制御する ~重縮合における分子量と分子量分布の制御~", 現代化学, 2005, 18-23.
  49. 【総説】横澤 勉, 横山明弘, "高分子合成化学の最近の進展と接着技術への応用の可能性 (6) 重縮合", 日本接着学会誌, 2005, 41, 72-83.
  50. 【総説】宮越 亮, 横山明弘, 横澤 勉, "金属触媒の分子内移動による特異な重縮合挙動", 高分子加工, 2005, 54, 169-175.
  51. 【図書】高分子学会編,「高分子辞典(第3版)」(担当: 「クラウンエーテル」, 「交換反応」, 「ノルボルナジエン」, 「ノルボルネン」, 「光アニオン重合」, 「分光感度」, 「ポリシロキサン」, 「ラジカル重縮合」, 「ラジカル重付加」), 朝倉書店 (2005).
  52. Tsutomu Yokozawa; Ryuji Sugi; Toshinobu Asai; Akihiro Yokoyama "Self-initiated chain-growth polycondensation for aromatic polyamides," Chem. Lett., 2004, 33, 272-273 (doi: 10.1246/cl.2004.272).
  53. Akihiro Yokoyama; Ryo Miyakoshi; Tsutomu Yokozawa "Chain-growth polymerization for poly(3-hexylthiophene) with a defined molecular weight and a low polydispersity," Macromolecules, 2004, 37, 1169-1171 (doi: 10.1021/ma035396o).
  54. Keiko Takahashi; Hiroshi Narita; Megumi Oh-Hashi; Akihiro Yokoyama; Tsutomu Yokozawa "Diastereomeric Difference of the Self-Inclusion Complex of N(N'-Formyl-Phenylalanyl)-Deoxyamino-β-Cyclodextrin Caused by the Interaction between the Arm and the Rim of the Cavity," J. Inclusion Phenom. Macrocyclic Chem., 2004, 50, 121-127 (doi: 10.1007/s10847-004-8852-6).
  55. Yukimitsu Suzuki; Shuichi Hiraoka; Akihiro Yokoyama; Tsutomu Yokozawa "Solvent effect on chain-growth polycondensation for aromatic polyethers," J. Polym. Sci., Part A: Polym. Chem., 2004, 42, 1198-1207 (doi: 10.1002/pola.11060).
  56. Ryo Miyakoshi; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of poly(3-hexylthiophene) with a narrower polydispersity," Macromol. Rapid Commun., 2004, 25, 1663-1666 (doi: 10.1002/marc.200400281).
  57. Isao Azumaya; Daisuke Uchida; Takako Kato; Akihiro Yokoyama; Aya Tanatani; Hiroaki Takayanagi; Tsutomu Yokozawa "Absolute helical arrangement of stacked benzene rings: Heterogeneous double-helical interaction comprising a hydrogen-bonding belt and an offset parallel aromatic-aromatic-interaction array," Angew. Chem., Int. Ed., 2004, 43, 1360-1363 (doi: 10.1002/anie.200352788).
  58. 【総説】Tsutomu Yokozawa, Akihiro Yokoyama, "Chain-Growth Polycondensation: Living Polymerization Nature in Polycondensation and Approach to Condensation Polymer Architecture," Polym. J., 2004, 36, 65-83 (doi: 10.1295/polymj.36.65).
  59. Akihiro Yokoyama; Ken-Ichi Iwashita; Kyota Hirabayashi; Kazushige Aiyama; Tsutomu Yokozawa "Investigation of Aromatic Polyester Synthesis by the Chain-Growth Polycondensation Method," Macromolecules, 2003, 36, 4328-4336 (doi: 10.1021/ma021449a).
  60. Yukimitsu Suzuki; Shuichi Hiraoka; Akihiro Yokoyama; Tsutomu Yokozawa "Chain-Growth Polycondensation for Aromatic Polyethers with Low Polydispersities: Living Polymerization Nature in Polycondensation," Macromolecules, 2003, 36, 4756-4765 (doi: 10.1021/ma021553s).
  61. Ryuji Sugi; Akihiro Yokoyama; Tsutomu Yokozawa "Synthesis of well-defined telechelic aromatic polyamides by chain-growth polycondensation: Application to the synthesis of block copolymers of polyamide and poly(tetrahydrofuran)," Macromol. Rapid Commun., 2003, 24, 1085-1090 (doi: 10.1002/marc.200300056).
  62. Ryuji Sugi; Yoshio Hitaka; Atsushi Sekino; Akihiro Yokoyama; Tsutomu Yokozawa "Bidirectional propagation of chain-growth polycondensation: Its application to poly(ethylene glycol)-aromatic polyamide-poly(ethylene glycol) triblock copolymer with low polydispersity," J. Polym. Sci., Part A: Polym. Chem., 2003, 41, 1341-1346 (doi: 10.1002/pola.10662).
  63. Isao Azumaya; Takako Kato; Akihiro Yokoyama; Tsutomu Yokozawa; Fumiaki Imabeppu; Akio Watanabe; Hiroaki Takayanagi "Folded structure of a cyclic hexamer of 4-(methylamino)benzoic acid in the crystal," X-Ray Struct. Anal. Online, 2003, 19, X67-X68 (doi: 10.2116/analscix.19.x67).
  64. 【Proceedings】Yukimitsu Suzuki, Shuichi Hiraoka, Akihiro Yokoyama, Tsutomu Yokozawa, "Chain-Growth Polycondensation of Potassium 3-Cyano-4-Fluorophenolate Derivatives for Well-Defined Poly(arylene ether)s," Macromol. Symp., 2003, 199, 37-46 (doi: 10.1002/masy.200350904)).
  65. 【Proceedings】Tsutomu Yokozawa, Miyuki Ogawa, Atsushi Sekino, Ryuji Sugi, Akihiro Yokoyama, "Synthesis of Well-Defined Poly(p-benzamide) from Chain-Growth Polycondensation and Its Application to Block Copolymers," Macromol. Symp., 2003, 199, 187-195 (doi: 10.1002/masy.200350916).
  66. 【総説】横山明弘, 横澤 勉, "分子量と分子量分布を制御したポリチオフェンの合成", 高分子錯体アニュアルレビュー, 2003, 12-13.
  67. 【総説】横山明弘、鈴木幸光、杉 龍司、岩下健一、横澤 勉, "分子量と分子量分布を制御した芳香族縮合系高分子の合成", ポリイミド最近の進歩, 2003, 37-40.
  68. 【総説】横澤 勉, 横山明弘, "精密縮合系ブロックポリマーと新規熱可塑性エラストマーとしての可能性", 日本ゴム協会誌, 2003, 76, 304-309.
  69. 【総説】杉 龍司, 横山明弘, 横澤 勉, "連鎖重縮合による芳香族ポリアミド合成法を利用したブロック共重合体およびスターポリマーの合成", 高分子加工, 2003, 52, 435-442.
  70. 【紀要】横澤 勉, 田嶋和夫, 横山明弘, 今井洋子, 鈴木幸光 "連鎖重合で進行する重縮合による新規精密高分子の合成とその自己組織化に関する研究", 神奈川大学工学研究所所報, 2003, 26, 77-86.
  71. Tsutomu Yokozawa; Takahisa Taniguchi; Yukimitsu Suzuki; Akihiro Yokoyama "Chain-growth polycondensation of monomer consisting of two aromatic rings: synthesis of well-defined poly(ether sulfone) from 4-fluoro-4'-hydroxydiphenyl sulfone," J. Polym. Sci., Part A: Polym. Chem., 2002, 40, 3460-3464 (doi: 10.1002/pola.10429).
  72. Tsutomu Yokozawa; Miyuki Ogawa; Atsushi Sekino; Ryuji Sugi; Akihiro Yokoyama "Chain-Growth Polycondensation for Well-Defined Aramid. Synthesis of Unprecedented Block Copolymer Containing Aramid with Low Polydispersity," J. Am. Chem. Soc., 2002, 124, 15158-15159 (doi: 10.1021/ja021188k).
  73. 【紀要】横澤 勉, 田嶋和夫, 横山明弘, 今井洋子 "連鎖重合で進行する重縮合による新規精密高分子の合成とその自己組織化に関する研究", 神奈川大学工学研究所所報, 2002, 25, 60-62.
  74. Akihiro Yokoyama; Kazuhiko Mizuno "Stereoselective photocycloaddition of alkenes to naphthalene rings assisted by hydrogen bonding," Org. Lett., 2000, 2, 3457-3459 (doi: 10.1021/ol0002368).
  75. Yasuyuki Endo; Akihiro Yokoyama "Role of the hydrophobic moiety of tumor promoters. Synthesis and activity of 2-alkylated benzolactams," Bioorg. Med. Chem. Lett., 2000, 10, 63-66 (doi: 10.1016/s0960-894x(99)00580-6).
  76. Akihiro Yokoyama; Tomohiko Ohwada; Koichi Shudo "Prototype Pictet-Spengler reactions catalyzed by superacids. Involvement of dicationic superelectrophiles," J. Org. Chem., 1999, 64, 611-617 (doi: 10.1021/jo982019e).
  77. Akihiro Yokoyama; Tomohiko Ohwada; Shinichi Saito; Koichi Shudo "Nitration of quinoline 1-oxide: mechanism of regioselectivity," Chem. Pharm. Bull., 1997, 45, 279-283 (doi: 10.1248/cpb.45.279).
  • 成蹊大学
  • 理工学部
  • 物質生命理工学科

成蹊大学
有機化学研究室

横山研究室

住所:
〒180-8633
東京都武蔵野市吉祥寺北町3-3-1