Zobrazeno 1 - 10 of 36 pro vyhledávání: '"Daisuke Sawai"'
1
Simple method to measure rheological properties of soft surfaces by a micro-needle contact
Autor: Tadashi Kajiya, Daisuke Sawai, Koji Miyata, Yosuke Miyashita, Hiroyuki Noda
Publikováno v: The European Physical Journal E. 45
We developed a simple method to investigate rheological properties of soft surfaces, such as polymeric liquids and colloidal suspensions, by capturing the images of a metal micro-needle inserted into the surface. At contact, a meniscus-like deformati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25de292394f262d2173c420cffd9f58a
https://doi.org/10.1140/epje/s10189-022-00227-w
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3
Development of Oriented Morphology and Mechanical Properties upon Drawing of Stereo-Complex of Poly(L-lactic acid) and Poly(D-lactic acid) by Solid-State Coextrusion
Autor: Daisuke Sawai, Tetsuo Kanamoto, Masanori Tamada
Publikováno v: Polymer Journal. 39:953-960
A semicrystalline film consisting of only stereo-complex (sc) crystals was prepared by casting from a solution of an equimolar blend of poly(L-lactic acid) (PLLA) and poly(D-lactic acid) (PDLA). The film was uniaxially drawn by solid-state coextrusio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbce36b00327bf99dbd684b3e2e6d068
https://doi.org/10.1295/polymj.pj2007038
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4
Crystal density and heat of fusion for a stereo-complex of poly(L-lactic acid) and poly(D-lactic acid)
Autor: Suong-Hyu Hyon, Yasuhito Tsugane, Moon Sungil, Masanori Tamada, Daisuke Sawai, Tetsuo Kanamoto
Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 45:2632-2639
Measured densities of films, consisting of only stereo-complex (sc) crystals of poly(l-lactic acid) (PLLA) and poly(d-lactic acid) (PDLA), are sometimes significantly higher than the density of the sc-crystal calculated on the basis of the previously
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::996c75c1d93bf42fc0919906aad762b2
https://doi.org/10.1002/polb.21270
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6
Ultradrawing above the static melting temperature of ultra-high molecular weight isotactic poly(1-butene) having low ductility in the crystalline state
Autor: Koh Nakamura, Takashi Anyashiki, Takuro Ono, Daisuke Sawai, Tetsuo Kanamoto, Nobumi Hisada
Publikováno v: Polymer. 48:363-370
Ultra-high molecular weight isotactic poly(1-butene) (UHMW-PB1) melt-grown crystal (MGC) films were drawn using the PIN drawing technique. Although the UHMW-PB1 MGC films had poor ductility in the crystalline state, they were ultradrawable in the mol
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60b3180b81bdf0c44a377883bedb4c57
https://doi.org/10.1016/j.polymer.2006.11.020
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7
Crystal Transformation and Development of Tensile Properties upon Drawing of Poly(L-lactic acid) by Solid-State Coextrusion: Effects of Molecular Weight
Autor: Suong-Hyu Hyon, Liuba P. Myasnikova, Daisuke Sawai, Tetsuo Kanamoto, Moon Sungil, Takafumi Yokoyama
Publikováno v: Macromolecular Symposia. 242:93-103
Melt-crystallized films of poly(L-lactic acid) (PLLA) with M v in the range of 3.8∼46 × 10 4 consisting of α-form crystals were uniaxially drawn by solid-state coextrusion. The effects of M v , extrusion draw ratio (EDR), and extrusion temperatur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8baa348ed99c0ba8aa9f27c633148a15
https://doi.org/10.1002/masy.200651015
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8
Development of oriented morphology and tensile properties upon superdawing of solution-spun fibers of ultra-high molecular weight poly(acrylonitrile)
Autor: Daisuke Sawai, Tetsuo Kanamoto, Yuya Fujii
Publikováno v: Polymer. 47:4445-4453
The uniaxial drawing of UHMW-PAN fibers spun from a dilute solution into methanol coagulation baths at different temperatures and the resultant structure and tensile properties of the drawn products were studied. Although the initial morphology of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f621b232ca7d9b9e713d0cfeb220526d
https://doi.org/10.1016/j.polymer.2006.03.067
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9
Superdrawing of polytetrafluoroethylene nascent powder by solid-state coextrusion
Autor: Haruka Kuroki, Naoyuki Morooka, Daisuke Watanabe, Daisuke Sawai, Tetsuo Kanamoto
Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 44:3369-3377
A film of nascent powder of polytetrafluoroethylene (PTFE), compacted below the ambient melting temperature (T m , 335 °C), was drawn by two-stage draw techniques consisting of a first-stage solid-state coextrusion followed by a second-stage solid-s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84755e8b34ad6d5e7158d20b29b4979e
https://doi.org/10.1002/polb.20988
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10
Development of Oriented Structure and Mechanical Properties of Semicrystalline Polymers upon Drawing from a Non-Equilibrium Molten State
Autor: Daisuke Sawai
Publikováno v: Kobunshi. 55:726-729
優れた機能.性能を内包する高分子が,フィルム.テープ.繊維などのバルク材料として優れた機能.性能を発現するためには,内包する性質を引き出すための高次構造制御を行う必要がある.本
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3588a63f8209cae7c01c15725bbc1b57
https://doi.org/10.1295/kobunshi.55.726
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