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Sawada T, Mihara H, Serizawa T. Peptides as New Smart Bionanomaterials: Molecular-Recognition and Self-Assembly Capabilities. CHEM REC 2013; 13:172-86. [DOI: 10.1002/tcr.201200020] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Indexed: 12/14/2022]
Affiliation(s)
- Toshiki Sawada
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1-H121 Ookayama; Meguro-ku; Tokyo; Japan
| | - Hisakazu Mihara
- Department of Bioengineering; Tokyo Institute of Technology; 4259-B40 Nagatsuta-cho, Midori-ku; Yokohama; Japan
| | - Takeshi Serizawa
- Department of Organic and Polymeric Materials; Tokyo Institute of Technology; 2-12-1-H121 Ookayama; Meguro-ku; Tokyo; Japan
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Yoshimizu H, Ohta S, Asano T, Suzuki T, Tsujita Y. Temperature dependence of the mean size of polyphenyleneoxide microvoids, as studied by Xe sorption and 129Xe NMR chemical shift analyses. Polym J 2012. [DOI: 10.1038/pj.2012.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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3
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Serizawa T, Matsuno H, Sawada T. Specific interfaces between synthetic polymers and biologically identified peptides. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10602c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Serizawa T, Techawanitchai P, Matsuno H. Isolation of Peptides that Can Recognize Syndiotactic Polystyrene. Chembiochem 2007; 8:989-93. [PMID: 17492699 DOI: 10.1002/cbic.200700133] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takeshi Serizawa
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan.
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Tamai Y, Fukuda M. Effect of encaged aromatic guests on the shape and connectivity of molecular cavity in crystalline polystyrene evaluated by molecular simulations. J Chem Phys 2006; 121:12085-93. [PMID: 15634173 DOI: 10.1063/1.1815292] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The delta form of crystalline syndiotactic polystyrene is a clathrate molecular compound in which various aromatic molecules are encaged. We have investigated the size, shape, and connectivity of the molecular cavity in the crystal using a molecular dynamics simulation. The effects of the guest species on the cavity structure were investigated in detail. In order to systematically vary the guest structure, various aromatic guests, e.g., benzene, toluene, p-xylene, m-xylene, o and mesitylene were examined. The interstitial spaces between the guests and the polymer chains were analyzed by cluster analysis of the free volumes. The individual cavity volumes into which the guests are clathrated were also evaluated. It was found that the guest molecules can greatly affect not only the cavity size and shape but also the connectivity of the cavities. The transport of small molecules in the crystal is discussed in connection with the cavity structure.
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Affiliation(s)
- Yoshinori Tamai
- Department of Applied Physics, Faculty of Engineering, University of Fukui, Fukui 910-8507, Japan.
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Lupaşcu V, Picken SJ, Wübbenhorst M. Dynamics of T2G2 Helices in Atactic and Syndiotactic Polystyrene: New Evidence from Dielectric Spectroscopy and FTIR. Macromolecules 2006. [DOI: 10.1021/ma0606758] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Veronica Lupaşcu
- Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Physics and Astronomy, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - Stephen J. Picken
- Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Physics and Astronomy, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - Michael Wübbenhorst
- Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Physics and Astronomy, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
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Yamamoto Y, Nakai Y, Katsumata T, Tsutsui K, Tsujita Y, Yoshimizu H, Okamoto S. Structure and properties of the mesophase of syndiotactic polystyrene V: preferential sorption performance of the mesophase for aromatic hydrocarbons. J Mol Struct 2005. [DOI: 10.1016/j.molstruc.2004.08.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sivakumar M, Mahesh K, Yamamoto Y, Yoshimizu H, Tsujita Y. Structure and properties of the δ-form and mesophase of syndiotactic polystyrene membranes prepared from different organic solvents. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20474] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Soldatov D, Ripmeester J. Organic zeolites. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0167-2991(05)80187-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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12
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SIVAKUMAR M, SUZUKI T, YAMAMOTO Y, MAHESH K, YOSHIMIZU H, TSUJITA Y. Structure and properties of the mesophase of syndiotactic polystyrene membraneVII. Isothermal sorption behavior of xenon. J Memb Sci 2004. [DOI: 10.1016/j.memsci.2004.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Uda Y, Kaneko F, Kawaguchi T. Guest exchange process in syndiotactic polystyrene thin films measured by ATR-FTIR spectroscopy. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.02.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Yoshioka A, Tashiro K. Solvent Effect on the Glass Transition Temperature of Syndiotactic Polystyrene Viewed from Time-Resolved Measurements of Infrared Spectra at the Various Temperatures and Its Simulation by Molecular Dynamics Calculation. Macromolecules 2003. [DOI: 10.1021/ma035505z] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akiko Yoshioka
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kohji Tashiro
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Saitoh A, Amutharani D, Yamamoto Y, Tsujita Y, Yoshimizu H, Okamoto S. Structure and Properties of the Mesophase of Syndiotactic Polystyrene IV. Release of Guest Molecules from δ Form of Syndiotactic Polystyrene by Time Resolved FT-IR and WAXD Measurement. Polym J 2003. [DOI: 10.1295/polymj.35.868] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Yoshioka A, Tashiro K. Thermally- and solvent-induced crystallization kinetics of syndiotactic polystyrene viewed from time-resolved measurements of infrared spectra at the various temperatures (1) estimation of glass transition temperature shifted by solvent absorption. POLYMER 2003. [DOI: 10.1016/s0032-3861(03)00696-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Sivakumar M, Yamamoto Y, Amutharani D, Tsujita Y, Yoshimizu H, Kinoshita T. Studies on the ?-form complex in the syndiotactic polystyrene-organic molecule system. II. Structural investigation of the ?-form withp- andm-xylene isomers. J Appl Polym Sci 2003. [DOI: 10.1002/app.12474] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Tamai Y, Fukuda M. Nanoscale molecular cavity in crystalline polymer membranes studied by molecular dynamics simulation. POLYMER 2003. [DOI: 10.1016/s0032-3861(03)00214-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yoshioka A, Tashiro K. Polymer−Solvent Interactions in Crystalline δ Form of Syndiotactic Polystyrene Viewed from the Solvent-Exchange Process in the δ Form and the Solvent Evaporation Phenomenon in the Thermally Induced δ−γ Phase Transition. Macromolecules 2003. [DOI: 10.1021/ma021774y] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akiko Yoshioka
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kohji Tashiro
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Yoshioka A, Tashiro K. Infrared Bands Sensitive to the Chain Packing Mode in the Crystalline δ, δe, and γ Forms of Syndiotactic Polystyrene. Macromolecules 2003. [DOI: 10.1021/ma026005t] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akiko Yoshioka
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Kohji Tashiro
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Rani DA, Yamamoto Y, Mohri S, Sivakumar M, Tsujita Y, Yoshimizu H. Structure and properties of the mesophase of syndiotactic polystyrene. II. Effect of stepwise extraction on the preparation of the mesophase. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10375] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Rani DA, Yamamoto Y, Saito A, Sivakumar M, Tsujita Y, Yoshimizu H, Kinoshita T. Structure and properties of the mesophase of syndiotactic polystyrene. I. Effect of casting conditions on the preparation of the mesophase. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10120] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Tashiro K, Yoshioka A. Molecular Mechanism of Solvent-Induced Crystallization of Syndiotactic Polystyrene Glass. 2. Detection of Enhanced Motion of the Amorphous Chains in the Induction Period of Crystallization. Macromolecules 2001. [DOI: 10.1021/ma011509x] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kohji Tashiro
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akiko Yoshioka
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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Handa YP, Zhang Z, Nawaby V, Tan J. Gas Solubility in and Foamability of Various Forms of Syndiotactic Polystyrene. CELLULAR POLYMERS 2001. [DOI: 10.1177/026248930102000401] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A high pressure microbalance was used to measure solubility of CO2 at 35°C and pressures to 55 atm in amorphous, meso, and α-crystalline forms of syndiotactic polystyrene, sPS. Diffusion coefficient of CO2 in the various samples were derived from sorption kinetics. When normalized with respect to 100% amorphous content, the solubility and diffusivity of CO2 was found to be highest in the semi-crystalline α-form, followed by the meso and the amorphous forms. This rather unusual observation was attributed to the existence of microvoids in α-sPS and meso-sPS, and due to the finite solubility of gas in the rigid amorphous phase associated with these two forms. All three forms of sPS were foamed at various temperatures in the range 50 to 295°C to give microcellular structures. The cell walls in foams obtained from amorphous sPS showed unusual, starburst type structure. The density of meso-sPS foams first decreased and then increased with foaming temperature due to the transformation of the mesophase to the α-phase with increasing temperature. The microvoids in α-sPS and meso-sPS are conjectured to serve as the nucleating sites rather than the often suggested phenomenon of heterogeneous nucleation induced by the crystallites.
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Affiliation(s)
- Y. Paul Handa
- Pactiv Corporation, Technology Center, 2651 Brickyard Road Canandaigua, NY 14424-7990, USA
| | - Zhiyi Zhang
- Pactiv Corporation, Technology Center, 2651 Brickyard Road Canandaigua, NY 14424-7990, USA
| | - Victoria Nawaby
- Pactiv Corporation, Technology Center, 2651 Brickyard Road Canandaigua, NY 14424-7990, USA
| | - Julie Tan
- Pactiv Corporation, Technology Center, 2651 Brickyard Road Canandaigua, NY 14424-7990, USA
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25
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Suzuki T, Miyauchi M, Takekawa M, Yoshimizu H, Tsujita Y, Kinoshita T. Characterization of the Microvoids in Poly(2,6-dimethyl-1,4-phenylene oxide) by Means of 129Xe NMR Spectroscopy. Macromolecules 2001. [DOI: 10.1021/ma001656f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomoyuki Suzuki
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Minoru Miyauchi
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Masakatsu Takekawa
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Hiroaki Yoshimizu
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Yoshiharu Tsujita
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
| | - Takatoshi Kinoshita
- Department of Materials Science and Engineering, Polymeric Materials Course, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan
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26
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Suzuki T, Miyauchi M, Yoshimizu H, Tsujita Y. Characterization of Microvoids in Glassy Polymers by Means of 129Xe NMR Spectroscopy. Polym J 2001. [DOI: 10.1295/polymj.33.934] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Tsutsui K, Katsumata T, Yamamoto Y, Fukatsu H, Yoshimizu H, Kinoshita T, Tsujita Y. The structural organization in syndiotactic polystyrene film induced by toluene vapour sorption. POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00588-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Tsutsui K, Katsumata T, Fukatsu H, Yoshimizu H, Kinoshita T, Tsujita Y. The Isomer Effect on Complex Formation in Syndiotactic Polystyrene–Xylene System. Polym J 1999. [DOI: 10.1295/polymj.31.268] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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