Atsushi Takahara &ndash; Research Output

2012

Biomimetic dopamine derivative for selective polymer modification of halloysite nanotube lumen

Yah, W. O., Xu, H., Soejima, H., Ma, W., Lvov, Y. & Takahara, A., Jul 25 2012, In : Journal of the American Chemical Society. 134, 29, p. 12134-12137 4 p.

Research output: Contribution to journal › Article

Nanotubes

Biomimetics

Dihydroxyphenylalanine

Dopamine

Polymers

39 Citations (Scopus)

Chain dimension of polyampholytes in solution and immobilized brush states

Kikuchi, M., Terayama, Y., Ishikawa, T., Hoshino, T., Kobayashi, M., Ogawa, H., Masunaga, H., Koike, J. I., Horigome, M., Ishihara, K. & Takahara, A., Jan 1 2012, In : Polymer Journal. 44, 1, p. 121-130 10 p.

Research output: Contribution to journal › Article

Brushes

Dynamic light scattering

X ray scattering

Silicon Dioxide

Silica

37 Citations (Scopus)

Changes in network structure of chemical gels controlled by solvent quality through photoinduced radical reshuffling reactions of trithiocarbonate units

Amamoto, Y., Otsuka, H., Takahara, A. & Matyjaszewski, K., Dec 1 2012, In : ACS Macro Letters. 1, 4, p. 478-481 4 p.

Research output: Contribution to journal › Article

Polymers

Gels

Swelling

Covalent bonds

Functional materials

11 Citations (Scopus)

Characterization of an isotactic polystyrene/poly(2,6-dimethylphenylene oxide) nanorod blend with gradient composition and crystallinity

Wu, H., Su, Z. & Takahara, A., Jan 1 2012, In : RSC Advances. 2, 23, p. 8707-8712 6 p.

Research output: Contribution to journal › Article

Polystyrenes

Nanorods

Oxides

Polyphenylene oxides

Crystallization

90 Citations (Scopus)

Competition between oxidation and coordination in cross-linking of polystyrene copolymer containing catechol groups

Xu, H., Nishida, J., Ma, W., Wu, H., Kobayashi, M., Otsuka, H. & Takahara, A., Dec 1 2012, In : ACS Macro Letters. 1, 4, p. 457-460 4 p.

Research output: Contribution to journal › Article

Polystyrenes

Copolymers

Oxidation

Gelation

Free radicals

9 Citations (Scopus)

Direct controlled polymerization of ionic monomers by surface-initiated ATRP using a fluoroalcohol and ionic liquids

Kobayashi, M., Terada, M., Terayama, Y., Kikuchi, M. & Takahara, A., Apr 1 2012, In : Israel Journal of Chemistry. 52, 3-4, p. 364-374 11 p.

Research output: Contribution to journal › Article

Ionic Liquids

Atom transfer radical polymerization

Polymers

Monomers

Polymerization

18 Citations (Scopus)

Dynamic covalent polymer brushes: Reversible surface modification of reactive polymer brushes with alkoxyamine-based dynamic covalent bonds

Sato, T., Amamoto, Y., Yamaguchi, H., Ohishi, T., Takahara, A. & Otsuka, H., Nov 1 2012, In : Polymer Chemistry. 3, 11, p. 3077-3083 7 p.

Research output: Contribution to journal › Article

Fluorocarbon Polymers

Functional polymers

Covalent bonds

Brushes

Surface treatment

4 Citations (Scopus)

Formation of layered perovskite structure by folding monolayer during compression

Arita, H., Hiramatsu, K., Narita, T., Takahara, A., Era, M. & Oishi, Y., Oct 2012, In : Journal of Nanoscience and Nanotechnology. 12, 10, p. 8094-8097 4 p.

Research output: Contribution to journal › Article

Perovskite

folding

Monolayers

aqueous solutions

ammonium bromides

26 Citations (Scopus)

Heterogeneous lamellar structures near the polymer/substrate interface

Asada, M., Jiang, N., Sendogdular, L., Gin, P., Wang, Y., Endoh, M. K., Koga, T., Fukuto, M., Schultz, D., Lee, M., Li, X., Wang, J., Kikuchi, M. & Takahara, A., Sep 11 2012, In : Macromolecules. 45, 17, p. 7098-7106 9 p.

Research output: Contribution to journal › Article

Lamellar structures

Polymers

Thick films

Linear low density polyethylenes

Substrates

11 Citations (Scopus)

Highly oriented and ordered double-helical morphology in ABC triblock terpolymer films up to micrometer thickness by solvent evaporation

Hong, S., Higuchi, T., Sugimori, H., Kaneko, T., Abetz, V., Takahara, A. & Jinnai, H., Jun 1 2012, In : Polymer Journal. 44, 6, p. 567-572 6 p.

Research output: Contribution to journal › Article

Terpolymers

Polystyrenes

Film thickness

Polybutadienes

Evaporation

52 Citations (Scopus)

Influence of molecular weight dispersity of poly{2-(perfluorooctyl)ethyl acrylate} brushes on their molecular aggregation states and wetting behavior

Yamaguchi, H., Kikuchi, M., Kobayashi, M., Ogawa, H., Masunaga, H., Sakata, O. & Takahara, A., Feb 14 2012, In : Macromolecules. 45, 3, p. 1509-1516 8 p.

Research output: Contribution to journal › Article

Brushes

Wetting

Agglomeration

Molecular weight

Silicon

27 Citations (Scopus)

Isotactic polystyrene nanorods with gradient crystallite states

Wu, H., Su, Z. & Takahara, A., Mar 21 2012, In : Soft Matter. 8, 11, p. 3180-3184 5 p.

Research output: Contribution to journal › Article

Polystyrenes

Nanorods

nanorods

polystyrene

gradients

4 Citations (Scopus)

Morphology of nanoimprinted polyimide films fabricated via a controlled thermal history

Siqing, S., Wu, H. & Takahara, A., Oct 1 2012, In : Polymer Journal. 44, 10, p. 1036-1041 6 p.

Research output: Contribution to journal › Article

Polyimides

Nanoimprint lithography

Thick films

Dynamic mechanical analysis

Curing

31 Citations (Scopus)

Orientation of poly(vinyl alcohol) nanofiber and crystallites in non-woven electrospun nanofiber mats under uniaxial stretching

Yano, T., Higaki, Y., Tao, D., Murakami, D., Kobayashi, M., Ohta, N., Koike, J. I., Horigome, M., Masunaga, H., Ogawa, H., Ikemoto, Y., Moriwaki, T. & Takahara, A., Sep 28 2012, In : polymer. 53, 21, p. 4702-4708 7 p.

Research output: Contribution to journal › Article

Nanofibers

Crystallites

Crystal orientation

Stretching

Alcohols

60 Citations (Scopus)

Polyelectrolyte brushes: A novel stable lubrication system in aqueous conditions

Kobayashi, M., Terada, M. & Takahara, A., Jul 16 2012, In : Faraday Discussions. 156, p. 403-412 10 p.

Research output: Contribution to journal › Article

lubrication systems

brushes

Brushes

Polyelectrolytes

Lubrication

22 Citations (Scopus)

Preparation and characterization of imogolite/DNA Hybrid Hydrogels

Jiravanichanun, N., Yamamoto, K., Kato, K., Kim, J., Horiuchi, S., Yah, W. O., Otsuka, H. & Takahara, A., Jan 9 2012, In : Biomacromolecules. 13, 1, p. 276-281 6 p.

Research output: Contribution to journal › Article

Hydrogels

DNA

Gels

Nanofibers

Ashes

251 Citations (Scopus)

Selective modification of halloysite lumen with octadecylphosphonic acid: New inorganic tubular micelle

Yah, W. O., Takahara, A. & Lvov, Y. M., Jan 25 2012, In : Journal of the American Chemical Society. 134, 3, p. 1853-1859 7 p.

Research output: Contribution to journal › Article

Inorganic acids

Micelles

Clay

Nuclear magnetic resonance

Acids

273 Citations (Scopus)

Self-healing of chemical gels cross-linked by diarylbibenzofuranone-based trigger-free dynamic covalent bonds at room temperature

Imato, K., Nishihara, M., Kanehara, T., Amamoto, Y., Takahara, A. & Otsuka, H., Jan 27 2012, In : Angewandte Chemie - International Edition. 51, 5, p. 1138-1142 5 p.

Research output: Contribution to journal › Article

Covalent bonds

Polymers

Fusion reactions

Gels

Air

292 Citations (Scopus)

Self-healing of covalently cross-linked polymers by reshuffling thiuram disulfide moieties in air under visible light

Amamoto, Y., Otsuka, H., Takahara, A. & Matyjaszewski, K., Aug 2 2012, In : Advanced Materials. 24, 29, p. 3975-3980 6 p.

Research output: Contribution to journal › Article

Thiram

Disulfides

Polymers

Air

Electric lamps

27 Citations (Scopus)

Semirigid biobased polymer brush: Poly(α-methylene-γ- butyrolactone) brushes

Higaki, Y., Okazaki, R. & Takahara, A., 2012, In : ACS Macro Letters. 1, 9, p. 1124-1127 4 p.

Research output: Contribution to journal › Article

Brushes

Polymers

Friction

Elastic moduli

Atom transfer radical polymerization

16 Citations (Scopus)

Synthesis of TiO ₂ nanocoral structures in ever-changing aqueous reaction systems

Soejima, T., Jin, R. H., Terayama, Y., Takahara, A., Shiraishi, T., Ito, S. & Kimizuka, N., Feb 7 2012, In : Langmuir. 28, 5, p. 2637-2642 6 p.

Research output: Contribution to journal › Article

rutile

Nanowires

nanowires

synthesis

Titanium dioxide

Tribological properties in aqueous media of polyelectrolyte brushes prepared by controlled polymerization surface design for novel type of environment friendly lubrication

Kobayashi, M. & Takahara, A., Feb 15 2012, In : Toraibarojisuto/Journal of Japanese Society of Tribologists. 57, 2, p. 91-96 6 p.

Research output: Contribution to journal › Article

tribology

Tribology

brushes

Brushes

lubrication

216 Citations (Scopus)

Wettability and antifouling behavior on the surfaces of superhydrophilic polymer brushes

Kobayashi, M., Terayama, Y., Yamaguchi, H., Terada, M., Murakami, D., Ishihara, K. & Takahara, A., May 8 2012, In : Langmuir. 28, 18, p. 7212-7222 11 p.

Research output: Contribution to journal › Article

antifouling

brushes

Brushes

wettability

Wetting

16 Citations (Scopus)

X-ray photon correlation spectroscopy using a fast pixel array detector with a grid mask resolution enhancer

Hoshino, T., Kikuchi, M., Murakami, D., Harada, Y., Mitamura, K., Ito, K., Tanaka, Y., Sasaki, S., Takata, M., Jinnai, H. & Takahara, A., Nov 1 2012, In : Journal of Synchrotron Radiation. 19, 6, p. 988-993 6 p.

Research output: Contribution to journal › Article

Photon correlation spectroscopy

X ray spectroscopy

Masks

masks

Pixels

2011

24 Citations (Scopus)

Advanced neutron reflectometer for investigation on dynamic/static structures of soft-interfaces in J-PARC

Mitamura, K., Yamada, N. L., Sagehashi, H., Seto, H., Torikai, N., Sugita, T., Furusaka, M. & Takahara, A., Jan 1 2011, In : Journal of Physics: Conference Series. 272, 1, 012017.

Research output: Contribution to journal › Article

reflectometers

Japan

accelerators

neutrons

electric choppers

12 Citations (Scopus)

Chain dimensions in free and immobilized brush states of polysulfobetaine in aqueous solution at various salt concentrations

Terayama, Y., Arita, H., Ishikawa, T., Kikuchi, M., Mitamura, K., Kobayashi, M., Yamada, N. L. & Takahara, A., Jan 1 2011, In : Journal of Physics: Conference Series. 272, 1, 012010.

Research output: Contribution to journal › Article

brushes

aqueous solutions

salts

osmosis

gyration

21 Citations (Scopus)

Characterization of swollen states of polyelectrolyte brushes in salt solution by neutron reflectivity

Kobayashi, M., Mitamura, K., Terada, M., Yamada, N. L. & Takahara, A., Jan 1 2011, In : Journal of Physics: Conference Series. 272, 1, 012019.

Research output: Contribution to journal › Article

brushes

chlorides

salts

reflectance

neutrons

12 Citations (Scopus)

Conversion of poly(ethylene-alt-tetrafluoroethylene) copolymers into polytetrafluoroethylene by direct fluorination: A convenient approach to access new properties at the ETFE surface

Calleja, G., Houdayer, A., Etienne-Calas, S., Bourgogne, D., Flaud, V., Silly, G., Shibahara, S., Takahara, A., Jourdan, A., Hamwi, A. & Ameduri, B., Apr 1 2011, In : Journal of Polymer Science, Part A: Polymer Chemistry. 49, 7, p. 1517-1527 11 p.

Research output: Contribution to journal › Article

Fluorination

Polytetrafluoroethylene

Polytetrafluoroethylenes

Ethylene

Copolymers

70 Citations (Scopus)

Design and performance of horizontal-type neutron reflectometer SOFIA at J-PARC/MLF

Yamada, N. L., Torikai, N., Mitamura, K., Sagehashi, H., Sato, S., Seto, H., Sugita, T., Goko, S., Furusaka, M., Oda, T., Hino, M., Fujiwara, T., Takahashi, H. & Takahara, A., Jan 1 2011, In : European Physical Journal Plus. 126, 11, p. 1-13 13 p., 108.

Research output: Contribution to journal › Article

reflectometers

analyzers

Japan

accelerators

neutrons

9 Citations (Scopus)

Enhanced interfacial adhesion between an amorphous polymer (Polystyrene) and a semicrystalline polymer [a Polyamide (Nylon 6)]

Kim, S., Lee, J., Kim, H., Seo, Y. P., Hong, S. M., Takahara, A., Choi, H. J. & Seo, Y., Jul 27 2011, In : ACS Applied Materials and Interfaces. 3, 7, p. 2622-2629 8 p.

Research output: Contribution to journal › Article

Polystyrenes

Nylons

Polyamides

Polymers

Adhesion

19 Citations (Scopus)

Generality of anomalous expansion of polymer chains in supercritical fluids

Koga, T., Gin, P., Yamaguchi, H., Endoh, M. K., Asada, M., Sendogdular, L., Kobayashi, M., Takahara, A., Akgun, B., Satija, S. K. & Sumi, T., Sep 1 2011, In : polymer. 52, 19, p. 4331-4336 6 p.

Research output: Contribution to journal › Article

Supercritical fluids

Polymers

Fluids

Ethane

Carbon Dioxide

14 Citations (Scopus)

Gradient composition distribution in poly(2,6-dimethylphenylene oxide)/polystyrene blend nanorods

Wu, H., Su, Z. & Takahara, A., Mar 7 2011, In : Soft Matter. 7, 5, p. 1868-1873 6 p.

Research output: Contribution to journal › Article

Polyphenylene oxides

Polystyrenes

Nanorods

Oxides

nanorods

17 Citations (Scopus)

Manipulation of surface properties: The use of nanomembrane as a nanometre-thick decal

Watanabe, H., Fujimoto, A. & Takahara, A., Mar 7 2011, In : Soft Matter. 7, 5, p. 1856-1860 5 p.

Research output: Contribution to journal › Article

surface properties

Surface properties

manipulators

wettability

Fabrication

21 Citations (Scopus)

Mesh-size control and functionalization of reorganizable chemical gels by monomer insertion into their cross-linking points

Amamoto, Y., Kikuchi, M., Masunaga, H., Ogawa, H., Sasaki, S., Otsuka, H. & Takahara, A., Apr 2011, In : Polymer Chemistry. 2, 4, p. 957-962 6 p.

Research output: Contribution to journal › Article

Gels

Monomers

divinyl benzene

Methylmethacrylate

Styrene

10 Citations (Scopus)

Molecular aggregation state and electrical properties of terthiophenes/imogolite nanohybrids

Yah, W. O., Irie, A., Jiravanichanun, N., Otsuka, H. & Takahara, A., Sep 19 2011, In : Bulletin of the Chemical Society of Japan. 84, 9, p. 893-902 10 p.

Research output: Contribution to journal › Article

Electric properties

Agglomeration

Nitrogen

Derivatives

Electrons

9 Citations (Scopus)

Molecular aggregation states of imogolite/P3HT nanofiber hybrid

Yah, W. O., Irie, A., Otsuka, H., Sasaki, S., Yagi, N., Sato, M., Koganezawa, T. & Takahara, A., Jan 1 2011, In : Journal of Physics: Conference Series. 272, 1, 012021.

Research output: Contribution to journal › Article

anisole

molecular chains

compatibility

dissolving

cooling

9 Citations (Scopus)

Molecular composition distribution of polycarbonate/polystyrene blends in cylindrical nanopores

Wu, H., Su, Z. & Takahara, A., Jul 1 2011, In : Polymer Journal. 43, 7, p. 600-605 6 p.

Research output: Contribution to journal › Article

polycarbonate

Nanopores

Polystyrenes

Polymer blends

Polycarbonates

90 Citations (Scopus)

Multipurpose soft-material SAXS/WAXS/GISAXS beamline at SPring-8

Masunaga, H., Ogawa, H., Takano, T., Sasaki, S., Goto, S., Tanaka, T., Seike, T., Takahashi, S., Takeshita, K., Nariyama, N., Ohashi, H., Ohata, T., Furukawa, Y., Matsushita, T., Ishizawa, Y., Yagi, N., Takata, M., Kitamura, H., Sakurai, K., Tashiro, K. & 15 others, Takahara, A., Amamiya, Y., Horie, K., Takenaka, M., Kanaya, T., Jinnai, H., Okuda, H., Akiba, I., Takahashi, I., Yamamoto, K., Hikosaka, M., Sakurai, S., Shinohara, Y., Okada, A. & Sugihara, Y., May 1 2011, In : Polymer Journal. 43, 5, p. 471-477 7 p.

Research output: Contribution to journal › Article

Scattering

Photons

Wigglers

Engineering research

Experiments

44 Citations (Scopus)

Poly(methyl methacrylate) grafted imogolite nanotubes prepared through surface-initiated ARGET ATRP

Ma, W., Otsuka, H. & Takahara, A., May 28 2011, In : Chemical Communications. 47, 20, p. 5813-5815 3 p.

Research output: Contribution to journal › Article

Atom transfer radical polymerization

Polymethyl Methacrylate

Polymethyl methacrylates

Nanotubes

Electrons

20 Citations (Scopus)

Precise control of surface physicochemical properties for electrospun fiber mats by surface-initiated radical polymerization

Yano, T., Yah, W. O., Yamaguchi, H., Terayama, Y., Nishihara, M., Kobayashi, M. & Takahara, A., Oct 1 2011, In : Polymer Journal. 43, 10, p. 838-848 11 p.

Research output: Contribution to journal › Article

Free radical polymerization

Surface properties

Fibers

Atom transfer radical polymerization

Electrospinning

12 Citations (Scopus)

Preparation and characterization of cross-linked β-cyclodextrin polymer/Fe3O4 composite nanoparticles with core-shell structures

Li, R. X., Liu, S. M., Zhao, J. Q., Otsuka, H. & Takahara, A., Feb 1 2011, In : Chinese Chemical Letters. 22, 2, p. 217-220 4 p.

Research output: Contribution to journal › Article

Cyclodextrins

Nanoparticles

Composite materials

Epichlorohydrin

Crosslinking

22 Citations (Scopus)

Preparation and properties of PVC/PMMA-g-imogolite nanohybrid via surface-initiated radical polymerization

Ma, W., Otsuka, H. & Takahara, A., Nov 10 2011, In : polymer. 52, 24, p. 5543-5550 8 p.

Research output: Contribution to journal › Article

Polymethyl Methacrylate

Free radical polymerization

Polymethyl methacrylates

Polyvinyl Chloride

Polyvinyl chlorides

46 Citations (Scopus)

Preparation of low-surface-energy poly[2-(perfluorooctyl)ethyl acrylate] microparticles and its application to liquid marble formation†

Matsukuma, D., Watanabe, H., Yamaguchi, H. & Takahara, A., Feb 15 2011, In : Langmuir. 27, 4, p. 1269-1274 6 p.

Research output: Contribution to journal › Article

Marble

Calcium Carbonate

microparticles

acrylates

Interfacial energy

8 Citations (Scopus)

Preparation of superparamagnetic β-cyclodextrin-functionalized composite nanoparticles with core-shell structures

Li, R., Liu, S., Zhao, J., Otsuka, H. & Takahara, A., May 1 2011, In : Polymer Bulletin. 66, 8, p. 1125-1136 12 p.

Research output: Contribution to journal › Article

Cyclodextrins

Magnetite Nanoparticles

Nanoparticles

nanoparticles

preparation

304 Citations (Scopus)

Repeatable photoinduced self-healing of covalently cross-linked polymers through reshuffling of trithiocarbonate units

Amamoto, Y., Kamada, J., Otsuka, H., Takahara, A. & Matyjaszewski, K., Feb 11 2011, In : Angewandte Chemie - International Edition. 50, 7, p. 1660-1663 4 p.

Research output: Contribution to journal › Article

Polymers

Fusion reactions

Polymerization

Irradiation

trithiocarbonic acid

53 Citations (Scopus)

Reversible adhesive-free nanoscale adhesion utilizing oppositely charged polyelectrolyte brushes

Kobayashi, M., Terada, M. & Takahara, A., Jun 21 2011, In : Soft Matter. 7, 12, p. 5717-5722 6 p.

Research output: Contribution to journal › Article

brushes

Brushes

Polyelectrolytes

adhesives

Adhesives

33 Citations (Scopus)

Reversible cross-linking of hydrophilic dynamic covalent polymers with radically exchangeable alkoxyamines in aqueous media

Su, J., Amamoto, Y., Nishihara, M., Takahara, A. & Otsuka, H., Sep 1 2011, In : Polymer Chemistry. 2, 9, p. 2021-2026 6 p.

Research output: Contribution to journal › Article

Polymers

Cross Reactions

Water

Hydrogels

Hydrochloric Acid

5 Citations (Scopus)

Static and dynamic scattering from polysulfobetaine immobilized on silica nanoparticle in ionic liquid

Kikuchi, M., Terayama, Y., Hoshino, T., Kobayashi, M., Ogawa, H., Masunaga, H. & Takahara, A., Jan 1 2011, In : Journal of Physics: Conference Series. 272, 1, 012016.

Research output: Contribution to journal › Article

chlorides

silicon dioxide

nanoparticles

light scattering

liquids

16 Citations (Scopus)

Surface modification of individual imogolite nanotubes with alkyl phosphate from an aqueous solution

Ma, W., Kim, J., Otsuka, H. & Takahara, A., Feb 4 2011, In : Chemistry Letters. 40, 2, p. 159-161 3 p.

Research output: Contribution to journal › Article

Nanotubes

Surface treatment

Phosphates

Transmission electron microscopy

40 Citations (Scopus)

Three-dimensional analysis of collagen lamellae in the anterior stroma of the human cornea visualized by second harmonic generation imaging microscopy

Morishige, N., Takagi, Y., Chikama, T. I., Takahara, A. & Nishida, T., Feb 1 2011, In : Investigative Ophthalmology and Visual Science. 52, 2, p. 911-915 5 p.

Research output: Contribution to journal › Article

Cornea

Microscopy

Collagen

Descemet Stripping Endothelial Keratoplasty

Tissue Donors