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41. Takahiro Anzai, Mariko Kawauchi, Takehiro Kawauchi, Jiro Kumaki, J. Phys. Chem. B, 2015, 119, 338-347. Crystallization Behavior of Single Isotactic Poly(methyl methacrylate) Chains Visualized by Atomic Force Microscopy.



40. Yue Wang, Takeshi Sakamoto, Yasuhito Koyama, Yuma Takanashi, Jiro Kumaki, Jiaxi Cui, Xinhua Wan, Tamaki Nakano, Polym. Chem. 2014, 5, 718-721. Photo-induced Helix-Helix Transition of a Polystyrene Derivative

39. Go Sato, Shotaro Nishitsuji, and Jiro Kumaki, J. Phys. Chem. B, 2013, 117, 9067−9072. Two-Dimensional Phase Separation of a Poly(methyl methacrylate)/ Poly(L‑lactide) Mixed Langmuir Monolayer via a Spinodal. Decomposition Mechanism

38. Yuma Takanashi, Jiro Kumaki, J. Phys. Chem. B, 2013, 117, 5594-5605. Significant Melting Point Depression of Two-Dimensional Folded-Chain Crystals of Isotactic Poly(methyl methacrylate)s Observed by High-Resolution In-Situ Atomic Force Microscopy.

37. Kouki Sugihara, Jiro Kumaki, J. Phys. Chem. B, 2012, 116(22), 6561-6568. Visualization of Two-Dimensional Single Chain Conformations Solubilized in a Miscible Polymer Blend Monolayer by Atomic Force Microscopy

36. Eiji Yashima, Sousuke Ohsawa, Shin-ichiro Sakurai, Kanji Nagai, Katsuhiro Maeda, Jiro Kumaki, Polymer J., accepted. Amplification of macromolecular helicity of dynamic helical poly(phenylacetylene)s bearing nonracemic alanine pendants in dilute solution, liquid crystal, and two-dimensional crystal

35. Sousuke Ohsawa, Shin-ichiro Sakurai, Kanji Nagai, Motonori Banno, Katsuhiro Maeda, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc., 2011, 133, 109-114. Hierarchical Amplification of Macromolecular Helicity of Dynamic Helical Poly(phenylacetylene)s Composed of Chiral and Achiral Phenylacetylenes in Dilute Solution, Liquid Crystal, and Two-Dimensional Crystal

34. Yuhtaro Sasaki, Naoyuki Aiba, Hiroshi Hashimoto, Jiro Kumaki, Macromolecules, 2010, 43, 9077-9086. Reversible Hierarchical Phase Separation of a Poly(methyl methacrylate) and Poly(n-nonyl acrylate) Blend in a Langmuir Monolayer

33. Takehiro Kawauchi, Atsushi Kitaura, Mariko Kawauchi, Tsutomu Takeichi, Jiro Kumaki, Hiroki Iida, Eiji Yashima, J. Am. Chem. Soc., 2010, 132, 12191-12193. Separation of C70 over C60 and Selective Extraction and Resolution of Higher Fullerenes by Syndiotactic Helical Poly(methyl methacrylate)

32. Naoyuki Aiba, Yuhtaro Sasaki, Jiro Kumaki, Langmuir, 2010, 26, 12703-12708. Strong Compression Rate Dependence of Phase Separation and Stereocomplexation between Isotactic and Syndiotactic Poly(methyl methacrylate)s in a Langmuir Monolayer Observed by Atomic Force Microscopy

31. Jiro Kumaki, Takashi Kajitani, Kanji Nagai, Kento Okoshi, Eiji Yashima, J. Am. Chem. Soc., 2010, 132, 5604-5606. Highlights in Nature Asia Materials, June 7, 2010. Visualization of Polymer Chain Conformations in Amorphous Polyisocyanide Langmuir-Blodgett Films by Atomic Force Microscopy

30. Takehiro Kawauchi, Atsushi Kitaura, Jiro Kumaki, Hiroshi Kusanagi, Eiji Yashima, J. Am. Chem. Soc., 2008, 36, 11889-11891. Helix-Sense-Controlled Synthesis of Optical Active Poly(methyl methacrylate) Stereocomplexes

29. Takeshi Maeda, Yoshio Furusho, Shin-ichiro Sakurai, Jiro Kumaki, Kento Okoshi, Eiji Yashima, J. Am. Chem. Soc., 2008, 130, 7938-7945. Double-Stranded Helical Polymers Consisting of Complementary Homopolymers

28. Jiro Kumaki, Takehiro Kawauchi, Koichi Ute, Tatsuki Kitayama, Eiji Yashima, J. Am. Chem. Soc., 2008, 130, 6373-6380. Molecular Weight Recognition in the Multiple-Stranded Helix of a Synthetic Polymer without Specific Monomer-Monomer Interaction

27. Jiro Kumaki, Takehiro Kawauchi, Eiji Yashima,Macromol. Rapid Commun., 200829、406-411. Peculiar "Reptational" Movements of Single Synthetic Polymer Chains on Substrate Observed by Atomic Force Microscopy

26. Hisanari Onouchi, Kento Okoshi, Takashi Kajitani, Shin-ichiro Sakurai, Kanji Nagai, Jiro Kumaki, Kiyotaka Onitsuka, Eiji Yashima, J. Am. Chem. Soc., 2008, 130, 229-236. Two- and Three-Dimensional Smectic Ordering of Single-Handed Helical Polymers

25. Takehiro Kawauchi, Jiro Kumaki, Atsushi Kitaura, Kento Okoshi, Hiroshi Kusanagi, Keita Kobayashi, Toshiki Sugai, Hisanori Shinohara, Eiji Yashima, Angew. Chem., Int. Ed., 2008, 47, 515-519. Encapsulation of Fullerenes in a Helical PMMA Cavity Leading to a Robust Processable Complex with a Macromolecular Helicity Memory

24. Shin-ichiro Sakurai, Sousuke Ohsawa, Kanji Nagai, Kento Okoshi, Jiro Kumaki, Eiji Yashima, Angew. Chem., Int. Ed. 2007, 46, 7605-7608. Two-Dimensional Helix-Bundle Formation of a Dynamic Helical Poly(phenylacetylene) with Achiral Pendant Groups on Graphite

23. Jiro Kumaki, Takehiro Kawauchi, Kento Okoshi, Hiroshi Kusanagi, Eiji Yashima, Angew. Chem., Int. Ed. 2007, 46, 5348-5351. Supramolecular Helical Structure of the Stereocomplex Composed of Complementary Isotactic and Syndiotactic Poly(methyl methacrylate)s as Revealed by Atomic Force Microscopy

22. Wei Zhang, Masashi Shiotsuki, Toshio Masuda, Jiro Kumaki, Eiji Yashima, Macromolecules 2007, 40, 178-185. Synthesis of Polymer Brushes Composed of Poly(phenylacetylene) Main Chain and Either Polystyrene or Poly(methyl methacrylate) Side Chains

21. Kento Okoshi, Shin-ichiro Sakurai, Sousuke Ohsawa, Jiro Kumaki, Eiji Yashima, Angew. Chem., Int. Ed. 2006, 45, 8173-8176. Control of Main-Chain Stiffness of a Helical Poly(phenylacetylene) by Switching On and Off the Intramolecular Hydrogen Bonding through Macromolecular Helicity Inversion

20. Takehiro Kawauchi, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc. 2006, 128, 10560-10567. Nanosphere and Nanonetwork Formations of [60]Fullerene-End-Capped Stereoregular Poly(methyl methacrylate)s through Stereocomplex Formation Combined with Self-Assembly of the Fullerenes

19. Shin-ichiro Sakurai, Kento Okoshi, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc. 2006, 128, 5650-5651. Two-Dimensional Surface Chirality Control by Solvent-Induced Helicity Inversion of a Helical Polyacetylene on Graphite

18. Takashi Kajitani, Kento Okoshi, Shin-ichiro Sakurai, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc. 2006, 128, 708-709, 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

17. Jiro Kumaki, Takehiro Kawauchi, Eiji Yashima, Macromolecules 2006, 39, 1209-1215, "Reptational" Movements of Single Synthetic Polymer Chains on Substrate Observed by In-situ Atomic Force Microscopy

16. Shin-ichiro Sakurai, Kento Okoshi, Jiro Kumaki, Eiji Yashima, Angew. Chem. Int. Ed. 2006, 45, 1245-1248, Two-Dimensional Hierarchical Self-Assembly of One-Handed Helical Polymers on Graphite

15. Takehiro Kawauchi, Jiro Kumaki, Kento Okoshi, Eiji Yashima, Macromolecules 2005, 38, 9155-9160, Stereocomplex Formation of Isotactic and Syndiotactic Poly(methyl methacrylate)s in Ionic Liquids Leading to Thermoreversible Ion Gels

14. Jiro Kumaki, Eiji Yashima, Guillaume Bollot, Jiri Mareda, Svetlana Litvinchuk, Stefan Matile, Angew. Chem. Int. Ed. 2005, 44, 6154-6157, AFM Snapshots of Synthetic Multifunctional Pores with Polyacetylene Blockers: Pseudorotaxanes and Template Effects

13. Takehiro Kawauchi, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc. 2005, 127, 9950-9951, Synthesis, Isolation via Self-Assembly, and Single-Molecule Observation of a [60]Fullerene-End-Capped Isotactic Poly(methyl methacrylate)

12. Kento Okoshi, Koichi Sakajiri, Jiro Kumaki, Eiji Yashima, Macromolecules 2005, 38, 4061-64, Well-Defined Lyotropic Liquid Crystalline Properties of Rigid-Rod Helical Polyacetylenes

11. Taro Nishinaka, Atsushi Takano, Yuko Doi, Makiko Hashimoto, Akira Nakamura, Yushu Matsushita, Jiro Kumaki, Eiji Yashima, J. Am. Chem. Soc. 2005, 127, 8120-8125, Conductive Metal Nanowires Templated by the Nucleoprotein Filaments, Complex of DNA and RecA Protein.

10. Jiro Kumaki, Takehiro Kawauchi, Eiji Yashima, J. Am. Chem. Soc. 2005, 127, 5788-5789, Two-Dimensional Folded Chain Crystals of a Synthetic Polymer in a Langmuir-Blodgett Film

9. Jiro Kumaki, Takeji Hashimoto, J. Am. Chem. Soc. 2003, 125, 4907-4917, Conformational Change in Isolated Single Synthetic Polymer Chain on Mica Surface Observed by Atomic Force Microscopy

8. Jiro Kumaki, Takeji Hashimoto, J. Am. Chem. Soc. 1998, 120, 423-424, Two-Dimensional Microphase Separation of a Block Copolymer in a Langmuir-Blodgett Film

7. Jiro Kumaki, Takeji Hashimoto, Steve Granick, Phys. Rev. Lett. 1997, 77, 1990-1993, Temperature Gradients Induce Phase Separation in a Miscible Polymer Solution

6. Jiro Kumaki, Yukihiro Nishikawa, Takeji Hashimoto, J. Am. Chem. Soc. 1996, 118, 3321-3322, Visualization of Single Chain Conformations of a Synthetic Polymer with Atomic Force Microscopy

5. Jiro Kumaki, J. Polym. Sci., Polym. Phys. 1990, 28, 105-111, Accumulation of Monomolecular Polystyrene Particles from a Water Surface onto a Substrate

4. Jiro Kumaki, Macromolecules 1988, 21, 749-755, Monolayer of Polystyrene Monomolecular Particles on a Water Surface Studied by Langmuir-Type Film Balance and Transmission Electron Microscopy

3. Jiro Kumaki, Macromolecules 1986, 19, 2258-2263, Polystyrene Monomolecular Particles Obtained by Spreading Dilute Solutions on the Water Surface

2. Jiro Kumaki, Takeji Hashimoto, Macromolecules 1986, 19, 763-768, Time-Resolved Light Scattering Studies on Kinetics of Phase Separation and Phase Dissolution of Polymer Blends. 4. Kinetics of Phase Dissolution of a Binary Mixture of Polystyrene and Poly(vinyl methyl ether)

1. Takeji Hashimoto, Jiro Kumaki, Hiromichi Kawai, Macromolecules 1983, 16, 641-648, Time-Resolved Light Scattering Studies on Kinetics of Phase Separation and Phase Dissolution of Polymer Blends. 1. Kinetics of Phase Separation of a Binary Mixture of Polystyrene and Poly(vinyl methyl ether)

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