Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering
Preirradiation graft polymerization of styrene in a poly(tetrafluoroethylene) (PTFE) film was examined by time-resolved small-angle neutron scattering (SANS). A crosslinked PTFE film, thickness of which is about 50 μm, was irradiated by γ-ray and immersed in a mixed solvent of styrene monomer and to...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2011/301807 |
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| _version_ | 1832559249823105024 |
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| author | Hiroki Iwase Shin-ichi Sawada Tetsuya Yamaki Yasunari Maekawa Satoshi Koizumi |
| author_facet | Hiroki Iwase Shin-ichi Sawada Tetsuya Yamaki Yasunari Maekawa Satoshi Koizumi |
| author_sort | Hiroki Iwase |
| collection | DOAJ |
| description | Preirradiation graft polymerization of styrene in a poly(tetrafluoroethylene) (PTFE) film was examined by time-resolved small-angle neutron scattering (SANS). A crosslinked PTFE film, thickness of which is about 50 μm, was irradiated by γ-ray and immersed in a mixed solvent of styrene monomer and toluene. SANS elucidated that graft polymerization proceeds by two reaction processes (I) and (II). In process (I) at 0<𝑡<200 min, graft polymerization occurs at an interface between crystalline and amorphous PTFE domains and the grafted polystyrene segregates from PTFE, forming a thin layer with a sharp interface. In process (II) at 200<𝑡<600 min, grafted PS layer starts to bridge between crystalline domains. At the end of process (II), 40% of total crystalline PTFE domain is covered by the grafted PS chains. |
| format | Article |
| id | doaj-art-eae5637bdc40450d88eeab7cdda8b177 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-eae5637bdc40450d88eeab7cdda8b1772025-02-03T01:30:38ZengWileyInternational Journal of Polymer Science1687-94221687-94302011-01-01201110.1155/2011/301807301807Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron ScatteringHiroki Iwase0Shin-ichi Sawada1Tetsuya Yamaki2Yasunari Maekawa3Satoshi Koizumi4Quantum Beam Science Directorate, Japan Atomic Energy Agency, Ibaraki, Tokai 319-1195, JapanQuantum Beam Science Directorate, Japan Atomic Energy Agency, Gunma, Takasaki 370-1292, JapanQuantum Beam Science Directorate, Japan Atomic Energy Agency, Gunma, Takasaki 370-1292, JapanQuantum Beam Science Directorate, Japan Atomic Energy Agency, Gunma, Takasaki 370-1292, JapanQuantum Beam Science Directorate, Japan Atomic Energy Agency, Ibaraki, Tokai 319-1195, JapanPreirradiation graft polymerization of styrene in a poly(tetrafluoroethylene) (PTFE) film was examined by time-resolved small-angle neutron scattering (SANS). A crosslinked PTFE film, thickness of which is about 50 μm, was irradiated by γ-ray and immersed in a mixed solvent of styrene monomer and toluene. SANS elucidated that graft polymerization proceeds by two reaction processes (I) and (II). In process (I) at 0<𝑡<200 min, graft polymerization occurs at an interface between crystalline and amorphous PTFE domains and the grafted polystyrene segregates from PTFE, forming a thin layer with a sharp interface. In process (II) at 200<𝑡<600 min, grafted PS layer starts to bridge between crystalline domains. At the end of process (II), 40% of total crystalline PTFE domain is covered by the grafted PS chains.http://dx.doi.org/10.1155/2011/301807 |
| spellingShingle | Hiroki Iwase Shin-ichi Sawada Tetsuya Yamaki Yasunari Maekawa Satoshi Koizumi Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering International Journal of Polymer Science |
| title | Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering |
| title_full | Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering |
| title_fullStr | Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering |
| title_full_unstemmed | Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering |
| title_short | Preirradiation Graft Polymerization of Styrene in a Poly(tetrafluoroethylene) Film Investigated by Time-Resolved Small-Angle Neutron Scattering |
| title_sort | preirradiation graft polymerization of styrene in a poly tetrafluoroethylene film investigated by time resolved small angle neutron scattering |
| url | http://dx.doi.org/10.1155/2011/301807 |
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