Molecular Structure Evaluation of Bulk Polytetrafluoroethylene Modified by X-ray Irradiation
Bulk polytetrafluoroethylene (PTFE) can be modified via X-ray irradiation. The X-rays, which have a continuous spectrum from 3 to 8 keV, penetrate deep into the PTFE substrate and induce a scission in the polymer main chain, -C-C-. In previous research, the optical properties of a PTFE sample were s...
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| Veröffentlicht in: | Journal of Photopolymer Science and Technology 2020/07/01, Vol.33(3), pp.295-299 |
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| container_title | Journal of Photopolymer Science and Technology |
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| creator | Takeuchi, Masaya Kinoshita, Atsushi Yamaguchi, Akinobu Utsumi, Yuichi |
| description | Bulk polytetrafluoroethylene (PTFE) can be modified via X-ray irradiation. The X-rays, which have a continuous spectrum from 3 to 8 keV, penetrate deep into the PTFE substrate and induce a scission in the polymer main chain, -C-C-. In previous research, the optical properties of a PTFE sample were successfully modified; UV and visible transmittance drastically increased in the irradiated area of the substrates. In this study, the characterization of the chemical structure of the samples was carried out using Raman and FTIR spectroscopies. The results suggest the formation of CF3 branches, which are not intrinsic to PTFE. In previous works, it has been reported that a similar modification was achieved using electron beam irradiation of several-MeV in molten PTFE, or by α-irradiation onto a PTFE substrate, where the modification depth was of tens of micrometers. On the contrary, we have succeeded the similar modification by using the X-rays. |
| doi_str_mv | 10.2494/photopolymer.33.295 |
| format | Article |
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The X-rays, which have a continuous spectrum from 3 to 8 keV, penetrate deep into the PTFE substrate and induce a scission in the polymer main chain, -C-C-. In previous research, the optical properties of a PTFE sample were successfully modified; UV and visible transmittance drastically increased in the irradiated area of the substrates. In this study, the characterization of the chemical structure of the samples was carried out using Raman and FTIR spectroscopies. The results suggest the formation of CF3 branches, which are not intrinsic to PTFE. In previous works, it has been reported that a similar modification was achieved using electron beam irradiation of several-MeV in molten PTFE, or by α-irradiation onto a PTFE substrate, where the modification depth was of tens of micrometers. On the contrary, we have succeeded the similar modification by using the X-rays.</description><identifier>ISSN: 0914-9244</identifier><identifier>EISSN: 1349-6336</identifier><identifier>DOI: 10.2494/photopolymer.33.295</identifier><language>eng</language><publisher>Hiratsuka: The Society of Photopolymer Science and Technology(SPST)</publisher><subject>Chain scission ; Cleavage ; Electron beams ; Electron irradiation ; Food irradiation ; Micrometers ; Molecular structure ; Optical properties ; Photochemical reaction ; Polytetrafluoroethylene ; Structural analysis ; Substrates ; Synchrotron radiation ; X ray irradiation ; X-ray ; X-rays</subject><ispartof>Journal of Photopolymer Science and Technology, 2020/07/01, Vol.33(3), pp.295-299</ispartof><rights>2020 The Society of Photopolymer Science and Technology (SPST)</rights><rights>Copyright Japan Science and Technology Agency 2020</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c535t-165be36b4a30ed9bef39005a0f1b922acd229744f1d768a5047b535e3ef3d2163</citedby><cites>FETCH-LOGICAL-c535t-165be36b4a30ed9bef39005a0f1b922acd229744f1d768a5047b535e3ef3d2163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1881,27923,27924</link.rule.ids></links><search><creatorcontrib>Takeuchi, Masaya</creatorcontrib><creatorcontrib>Kinoshita, Atsushi</creatorcontrib><creatorcontrib>Yamaguchi, Akinobu</creatorcontrib><creatorcontrib>Utsumi, Yuichi</creatorcontrib><title>Molecular Structure Evaluation of Bulk Polytetrafluoroethylene Modified by X-ray Irradiation</title><title>Journal of Photopolymer Science and Technology</title><addtitle>J. Photopol. Sci. Technol.</addtitle><description>Bulk polytetrafluoroethylene (PTFE) can be modified via X-ray irradiation. The X-rays, which have a continuous spectrum from 3 to 8 keV, penetrate deep into the PTFE substrate and induce a scission in the polymer main chain, -C-C-. In previous research, the optical properties of a PTFE sample were successfully modified; UV and visible transmittance drastically increased in the irradiated area of the substrates. In this study, the characterization of the chemical structure of the samples was carried out using Raman and FTIR spectroscopies. The results suggest the formation of CF3 branches, which are not intrinsic to PTFE. In previous works, it has been reported that a similar modification was achieved using electron beam irradiation of several-MeV in molten PTFE, or by α-irradiation onto a PTFE substrate, where the modification depth was of tens of micrometers. On the contrary, we have succeeded the similar modification by using the X-rays.</description><subject>Chain scission</subject><subject>Cleavage</subject><subject>Electron beams</subject><subject>Electron irradiation</subject><subject>Food irradiation</subject><subject>Micrometers</subject><subject>Molecular structure</subject><subject>Optical properties</subject><subject>Photochemical reaction</subject><subject>Polytetrafluoroethylene</subject><subject>Structural analysis</subject><subject>Substrates</subject><subject>Synchrotron radiation</subject><subject>X ray irradiation</subject><subject>X-ray</subject><subject>X-rays</subject><issn>0914-9244</issn><issn>1349-6336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNplkEFLw0AQhRdRsFZ_gZcFz6mbnU3qHrVULbQoqOBBWDbJxKZus3WyEfLvjbYUwdNcvu895jF2HouRVFpdbpY--I133RppBDCSOjlggxiUjlKA9JANhI5VpKVSx-ykaVZCACSJHrC3hXeYt84SfwrU5qEl5NMv61obKl9zX_Kb1n3wxz48YCBbutaTx7DsHNbIF76oygoLnnX8NSLb8RmRLapf-5QdldY1eLa7Q_ZyO32e3Efzh7vZ5Hoe5QkkIYrTJENIM2VBYKEzLEELkVhRxpmW0uaFlHqsVBkX4_TKJkKNs15E6MFCxikM2cU2d0P-s8UmmJVvqe4rjVT9zzLVY91TsKVy8k1DWJoNVWtLnYmF-ZnR_J3RAJh-xt663VqrJth33DuWQpU7_OfATtwD-dKSwRq-AaBthdE</recordid><startdate>20200701</startdate><enddate>20200701</enddate><creator>Takeuchi, Masaya</creator><creator>Kinoshita, Atsushi</creator><creator>Yamaguchi, Akinobu</creator><creator>Utsumi, Yuichi</creator><general>The Society of Photopolymer Science and Technology(SPST)</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20200701</creationdate><title>Molecular Structure Evaluation of Bulk Polytetrafluoroethylene Modified by X-ray Irradiation</title><author>Takeuchi, Masaya ; Kinoshita, Atsushi ; Yamaguchi, Akinobu ; Utsumi, Yuichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c535t-165be36b4a30ed9bef39005a0f1b922acd229744f1d768a5047b535e3ef3d2163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Chain scission</topic><topic>Cleavage</topic><topic>Electron beams</topic><topic>Electron irradiation</topic><topic>Food irradiation</topic><topic>Micrometers</topic><topic>Molecular structure</topic><topic>Optical properties</topic><topic>Photochemical reaction</topic><topic>Polytetrafluoroethylene</topic><topic>Structural analysis</topic><topic>Substrates</topic><topic>Synchrotron radiation</topic><topic>X ray irradiation</topic><topic>X-ray</topic><topic>X-rays</topic><toplevel>online_resources</toplevel><creatorcontrib>Takeuchi, Masaya</creatorcontrib><creatorcontrib>Kinoshita, Atsushi</creatorcontrib><creatorcontrib>Yamaguchi, Akinobu</creatorcontrib><creatorcontrib>Utsumi, Yuichi</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of Photopolymer Science and Technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Takeuchi, Masaya</au><au>Kinoshita, Atsushi</au><au>Yamaguchi, Akinobu</au><au>Utsumi, Yuichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular Structure Evaluation of Bulk Polytetrafluoroethylene Modified by X-ray Irradiation</atitle><jtitle>Journal of Photopolymer Science and Technology</jtitle><addtitle>J. Photopol. Sci. Technol.</addtitle><date>2020-07-01</date><risdate>2020</risdate><volume>33</volume><issue>3</issue><spage>295</spage><epage>299</epage><pages>295-299</pages><issn>0914-9244</issn><eissn>1349-6336</eissn><abstract>Bulk polytetrafluoroethylene (PTFE) can be modified via X-ray irradiation. The X-rays, which have a continuous spectrum from 3 to 8 keV, penetrate deep into the PTFE substrate and induce a scission in the polymer main chain, -C-C-. In previous research, the optical properties of a PTFE sample were successfully modified; UV and visible transmittance drastically increased in the irradiated area of the substrates. In this study, the characterization of the chemical structure of the samples was carried out using Raman and FTIR spectroscopies. The results suggest the formation of CF3 branches, which are not intrinsic to PTFE. In previous works, it has been reported that a similar modification was achieved using electron beam irradiation of several-MeV in molten PTFE, or by α-irradiation onto a PTFE substrate, where the modification depth was of tens of micrometers. On the contrary, we have succeeded the similar modification by using the X-rays.</abstract><cop>Hiratsuka</cop><pub>The Society of Photopolymer Science and Technology(SPST)</pub><doi>10.2494/photopolymer.33.295</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Chain scission Cleavage Electron beams Electron irradiation Food irradiation Micrometers Molecular structure Optical properties Photochemical reaction Polytetrafluoroethylene Structural analysis Substrates Synchrotron radiation X ray irradiation X-ray X-rays |
| title | Molecular Structure Evaluation of Bulk Polytetrafluoroethylene Modified by X-ray Irradiation |
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