研究者詳細 - 谷本　智史

論文 - 谷本　智史

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Morphology of melt-quenched poly(epsilon-caprolactone)-block-polyethylene copolymers 査読

S Nojima, Y Akutsu, A Washino, S Tanimoto

POLYMER 45 ( 21 ) 7317 - 7324 2004年9月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCI LTD

The morphology of a melt-quenched crystalline-crystalline diblock copolymer, poly(epsilon-caprolactone)-block-polyethylene (PCL-b-PE), was studied by small-angle X-ray scattering and transmission electron microscopy. The melting behavior of PCL-b-PE was also investigated by differential scanning calorimetry. The melting temperature of PCL blocks, T-m,T-PCL, was ca. 55 degreesC and that of PE blocks was ca. 96 degreesC. Therefore, the PE block always crystallized first during quenching from the microphase-separated melt into various temperatures T-c below T-m,T-PCL to yield an alternating structure composed of PE lamellae and amorphous layers (PE lamellar morphology), and subsequently the crystallization of PCL blocks started at T-c after some induction period. The PE lamellar morphology was preserved after the crystallization of PCL blocks at low crystallization temperatures (T-c < 30 degreesC), that is, the PCL block crystallized within the PE larnellar morphology. At high crystallization temperatures (45 degreesC > T-c > 30 degreesC), on the other hand, the crystallization of PCL blocks destroyed the PE lamellar morphology to result in a new lamellar morphology mainly consisting of PCL lamellae and amorphous layers (PCL lamellar morphology). The PE crystals were fragmentarily dispersed in the PCL lamellar morphology. (C) 2004 Elsevier Ltd. All rights reserved.

DOI： 10.1016/j.polymer.2004.08.044

Web of Science

Crystallization Process in Binary Blends of Poly(e-caprolactone)-b-Polybutadiene Copolymers 査読

Satoshi Tanimoto, Kazuhiro Ito, Shintaro Sasaki, Hiroki Takeshita, Shuichi Nojima

Polymer Journal 34 593 - 600 2003年10月

Size Dependence of Crystallization within Spherical Microdomain Structures 査読

Shuichi Nojima, Masashi Toei, Sigeo Hara, Satoshi Tanimoto, Shintaro Sasaki

Polymer Journal 43 4087 - 4090 2002年6月

Morphological Difference between Solution-Cast and Melt-Quenched Crystalline-Amorphous Diblock Copolymers 査読

Awaludin Rohadi, Satoshi Tanimoto, Shintaro Sasaki, Shuichi Nojima

Polymer Journal 32 ( 10 ) 859 - 865 2000年10月

Effects of Molecular Weight and Crystallization Temperature on the Morphology Formation in Asymmetric Diblock Copolymers with a Highly Crystalline Block

Awaludin Rohadi, Ryuji Endo, Satoshi Tanimoto, Shintaro Sasaki, Shuichi Nojima

Polymer Journal 32 ( 7 ) 602 - 609 2000年7月

Crystallization of Poly(ε-caprolactone)-block-Polystyrene Copolymers from Grassy Microdomain Structures 査読

8. Shuichi Nojima, Hiroshi Kakihira, Satoshi Tanimoto, Hisayuki Nakatani, Shintaro Sasaki

Polymer Journal 32 ( 1 ) 75 - 78 2000年1月

Melting Behavior of Poly(ε-caprolactone)-block -Polybutadiene Copolymers 査読

Shuichi Nojima, Noriyuki Kikuchi, Awaludin Rohadi, Satoshi Tanimoto, Shintaro Sasaki

Macromolecules 32 ( 11 ) 3727 - 3734 1999年11月

Direct Estimation of the Electrostatic Interaction between Colloidal Particle and Chemically Modified Glass Surface by the Evanescent Wave Light Scattering Microscope Method 査読

Satoshi Tanimoto, Hideki Matsuoka, Hiroshi Yamauchi, Hitoshi Yamaoka

Colloid and Polymer Science 277 ( 2-3 ) 130 - 135 1999年3月

Direct Estimation of Interaction Potential between Phospholipid Liposome Particle and Glass Surface by Evanescent Wave Light Scattering Microscope Method 査読

5. Satoshi Tanimoto, Katsunori Takahashi, Hideki Matsuoka, Hitoshi Yamaoka

Colloids and Surfaces A: Physicochemical and Engineering Aspects 139 ( 3 ) 321 - 328 1998年9月

Evaluation of Dynamic Property of Polymer Latex Particles interacting with Quartz Interface by Evanescent Wave Dynamic Light Scattering 査読

4. Hideki Matsuoka, Hirofumi Morikawa, Satoshi Tanimoto, Akira Kubota, Yoshiharu Naito, Hitoshi Yamaoka

Colloid and Polymer Science 276 ( 4 ) 349 - 355 1998年2月

Direct Estimation of Dynamic Characteristics and Interaction Potential of Latex Particles interacted with a Glass Surface by Evanescent Wave Light-Scattering Microscope Method 査読

Satoshi Tanimoto, Hideki Matsuoka, Hitoshi Yamaoka

Colloid and Polymer Science 273 ( 12 ) 1201 - 1205 1995年12月

Binding Kinetics of Antibody to Hapten-doped Lipid Monolayers as Studied by the Multiple Internal Reflection Fluorescence Method 査読

Satoshi Tanimoto, Hiromi Kitano

Colloids and Surfaces B: Biointerfaces 4 ( 5 ) 259 - 265 1995年6月

BINDING-KINETICS OF ANTIBODY TO HAPTEN-DOPED LIPID MONOLAYERS AS STUDIED BY MULTIPLE INTERNAL-REFLECTION FLUORESCENCE METHOD 査読

S TANIMOTO, H KITANO

COLLOIDS AND SURFACES B-BIOINTERFACES 4 ( 5 ) 259 - 265 1995年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ELSEVIER SCIENCE BV

Binding processes of an antibody (anti-dinitrophenyl(DNP)-immunoglobulin E) labeled with fluorescein groups (FITC-anti-DNP-IgE) to a hapten-doped lipid monolayer were followed by the multiple internal reflection fluorescence method, because of its usefulness in detecting the adsorption or binding of target molecules at the interface. The hapten-doped lipids used in this work were dinitrophenyl-phosphatidylethanolamine (DNP-DPPE) and dinitrophenyl-aminocaproyl-phosphatidylethanolamine (DNP-cap-DPPE), and a monolayer containing the hapten-doped lipid was deposited on a poly(methyl methacrylate) cuvette by using the Langmuir-Blodgett technique.
The fluorescence signal increased with the binding of the antibodies, and the initial binding rate was calculated from the slope of the fluorescence signal curve. The initial rate of binding of FITC-anti-DNP-IEE to the hapten on the lipid monolayer surface increased at a low surface density of haptens in the lipid monolayer, and leveled off at a moderate-to-high hapten density. The effect of the spacer length between the hapten group and the lipid layer on the binding rate was also examined. It is confirmed that a long spacer promoted the access of antibodies to the haptens.

Web of Science

Binding Kinetics of Antibodies to Antigens on Polymer Surfaces as Studied by the Multiple Internal Reflection Fluorescence Method 査読

Satoshi Tanimoto, Hiromi Kitano

Langmuir 9 ( 5 ) 1315 - 1318 1993年5月

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