Search Results - "Ito, Kohzo"

Novel entropic elasticity of polymeric materials: why is slide-ring gel so soft? by Ito, Kohzo

“…We have recently developed a slide-ring gel that is different from physical and chemical gels by crosslinking polyrotaxane, a necklace-like supramolecule…”
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Slide-Ring Materials Using Cyclodextrin by Ito, Kohzo

“…We have recently synthesized slide-ring materials using cyclodextrin by cross-linking polyrotaxanes, a typical supramolecule. The slide-ring materials have…”
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From topological gels to slide-ring materials by Noda, Yumiki, Hayashi, Yuki, Ito, Kohzo

“…ABSTRACT A novel type of gel, called a topological gel, has been recently developed with a supramolecular architecture with topological characteristics. In the…”
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Mechanical Properties of Ultrathin Polystyrene‑b‑Polybutadiene‑b‑Polystyrene Block Copolymer Films: Film Thickness-Dependent Young’s Modulus by Saito, Masayuki, Ito, Kohzo, Yokoyama, Hideaki

“…This study investigated the mechanical properties of ultrathin polystyrene-b-polybutadiene-b-polystyrene (SBS) block copolymer films with thicknesses ranging…”
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Thermally Healable and Reprocessable Bis(hindered amino)disulfide-Cross-Linked Polymethacrylate Networks by Takahashi, Akira, Goseki, Raita, Ito, Kohzo, Otsuka, Hideyuki

“…A facile approach to polymethacrylate networks that contain thermally exchangeable bis­(2,2,6,6-tetramethylpiperidin-1-yl)­disulfide (BiTEMPS) cross-linkers is…”
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Structure and dynamics of polyrotaxane and slide-ring materials by Mayumi, Koichi, Ito, Kohzo

“…Polyrotaxane (PR), in which cyclic molecules are threaded into a linear polymer chain, has generated great interest because the sliding and rotation of the…”
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Film thickness and strain rate dependences of the mechanical properties of polystyrene-b-polyisoprene-b-polystyrene block copolymer ultrathin films forming a spherical domain by Saito, Masayuki, Ito, Kohzo, Yokoyama, Hideaki

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Prolonged Glass Transition due to Topological Constraints in Polyrotaxanes by Kato, Kazuaki, Ohara, Akihiro, Yokoyama, Hideaki, Ito, Kohzo

“…Topological constraints in polyrotaxanes significantly affected their glass transition dynamics. The effects of the constraints were systematically studied…”
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Stress-strain measurement of ultra-thin polystyrene films: Film thickness and molecular weight dependence of crazing stress by Hasegawa, Hiroki, Ohta, Takashi, Ito, Kohzo, Yokoyama, Hideaki

“…In general, self-standing polymer ultra-thin films are difficult to be handled, and therefore their mechanical properties have been poorly understood. We…”
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Effects of Ring Size on the Dynamics of Polyrotaxane Glass by Kato, Kazuaki, Ohara, Akihiro, Michishio, Koji, Ito, Kohzo

“…The dynamics of two polyrotaxanes with different ring component sizes were compared through viscoelastic measurements. An improved polyrotaxane synthesis was…”
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Direct enhancement of intercomponent interactions in polyrotaxane and its pronounced effects on glass state properties by Kato, Kazuaki, Mizusawa, Tomoki, Ohara, Akihiro, Ito, Kohzo

“…Strong interactions between the host cyclodextrin and the threading guest polymer were introduced by selective modifications to the polymer of a…”
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Anisotropic Amorphous X‑ray Diffraction Attributed to the Orientation of Cyclodextrin by Kato, Kazuaki, Ito, Kohzo, Hoshino, Taiki

“…The beauty of cyclic molecules is reflected in their host–guest complexation reactions, as well as their unique X-ray diffraction patterns. Cyclodextrins, the…”
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Molecular Dynamics of Polyrotaxane in Solution Investigated by Quasi-Elastic Neutron Scattering and Molecular Dynamics Simulation: Sliding Motion of Rings on Polymer by Yasuda, Yusuke, Hidaka, Yuta, Mayumi, Koichi, Yamada, Takeshi, Fujimoto, Kazushi, Okazaki, Susumu, Yokoyama, Hideaki, Ito, Kohzo

“…In this study, we investigated the molecular dynamics of polyrotaxane (PR), composed of α-cyclodextrins (CDs) and a poly­(ethylene glycol) (PEG) axial chain,…”
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Crack velocity dependent toughness of polyrotaxane networks: The sliding dynamics of rings on polymer under stretching by Liu, Chang, Yokoyama, Hideaki, Mayumi, Koichi, Ito, Kohzo

“…We investigate the fracture toughness of slide-ring (SR) gels, in which polymer chains are cross-linked by ring molecules, at various strain rates to evaluate…”
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Mechanical properties of supramolecular elastomers prepared from polymer-grafted polyrotaxane by Minato, Kosuke, Mayumi, Koichi, Maeda, Rina, Kato, Kazuaki, Yokoyama, Hideaki, Ito, Kohzo

“…Supramolecular slide-ring (SR) elastomers without solvent were fabricated by cross-linking of polymer-grafted polyrotaxane in which α-cyclodextrins (CDs) with…”
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Sliding Dynamics of Ring on Polymer in Rotaxane: A Coarse-Grained Molecular Dynamics Simulation Study by Yasuda, Yusuke, Toda, Masatoshi, Mayumi, Koichi, Yokoyama, Hideaki, Morita, Hiroshi, Ito, Kohzo

“…Rotaxane is a topological supramolecule in which a ring molecule is threaded onto an axial chain. A unique feature of rotaxane is that the ring can slide along…”
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Negative interfacial energies of dynamic polymer brush interfaces: a discussion of the free energy balance by Saito, Masayuki, Ito, Kohzo, Yokoyama, Hideaki

“…Interfacial energy is an important physical parameter for describing interfacial properties. However, quantifying the interfacial energy of a polymer–liquid…”
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One-Pot Synthesis and Characterization of Polyrotaxane–Silica Hybrid Aerogel by Jiang, Lan, Kato, Kazuaki, Mayumi, Koichi, Yokoyama, Hideaki, Ito, Kohzo

“…A novel kind of polyrotaxane–silica hybrid aerogel is successfully prepared via one-pot sol–gel synthesis in this work. The polyrotaxane can chemically…”
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Mechanical Properties and Swelling Behaviors of Ultrathin Chemically Cross-Linked Polybutadiene Films by Saito, Masayuki, Yamada, Norifumi L., Ito, Kohzo, Yokoyama, Hideaki

“…With the advancement of nanoscience and nanotechnology, understanding the unique mechanical properties of ultrathin polymer films is becoming increasingly…”
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Ductile Glass of Polyrotaxane Toughened by Stretch-Induced Intramolecular Phase Separation by Kato, Kazuaki, Nemoto, Kaito, Mayumi, Koichi, Yokoyama, Hideaki, Ito, Kohzo

“…A new class of ductile glasses is created from a thermoplastic polyrotaxane. The hard glass, which has a Young’s modulus of 1 GPa, shows crazing, necking, and…”
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