Secondary relaxations and electrical conductivity in hyperbranched polyester amides
Broadband dielectric spectroscopy is used to investigate molecular dynamics and charge transport in three hyperbranched polyester amides with hydroxyl, phenyl, and stearate terminal groups. At higher temperatures, the dielectric spectra are interpreted in terms of hopping conduction in a spatially r...
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| Veröffentlicht in: | Journal of polymer science. Part B, Polymer physics Polymer physics, 2010-07, Vol.48 (14), p.1651-1657 |
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| container_end_page | 1657 |
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| container_issue | 14 |
| container_start_page | 1651 |
| container_title | Journal of polymer science. Part B, Polymer physics |
| container_volume | 48 |
| creator | Turky, G Sangoro, J.R Abdel Rehim, M Kremer, F |
| description | Broadband dielectric spectroscopy is used to investigate molecular dynamics and charge transport in three hyperbranched polyester amides with hydroxyl, phenyl, and stearate terminal groups. At higher temperatures, the dielectric spectra are interpreted in terms of hopping conduction in a spatially randomly varying energy landscape, whereas two secondary dipolar relaxations attributed to librations of the terminal and amide groups dominate the low temperature regime. Despite a shift of more than 3 decades in the dc conductivity upon variation of the end groups, the Barton-Nakajima-Namikawa relation is shown to hold. |
| doi_str_mv | 10.1002/polb.21966 |
| format | Article |
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At higher temperatures, the dielectric spectra are interpreted in terms of hopping conduction in a spatially randomly varying energy landscape, whereas two secondary dipolar relaxations attributed to librations of the terminal and amide groups dominate the low temperature regime. Despite a shift of more than 3 decades in the dc conductivity upon variation of the end groups, the Barton-Nakajima-Namikawa relation is shown to hold.</description><identifier>ISSN: 0887-6266</identifier><identifier>ISSN: 1099-0488</identifier><identifier>EISSN: 1099-0488</identifier><identifier>DOI: 10.1002/polb.21966</identifier><identifier>CODEN: JPLPAY</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Amides ; Applied sciences ; Broadband ; charge transport ; conducting polymers ; dielectric properties ; dielectric relaxation ; Direct current ; Electrical, magnetic and optical properties ; Exact sciences and technology ; glassy polymers ; Molecular dynamics ; Organic polymers ; Phenyls ; Physicochemistry of polymers ; polyamides ; Polyester resins ; Properties and characterization ; Reproduction ; Terminals</subject><ispartof>Journal of polymer science. 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Part B, Polymer physics</title><addtitle>J. Polym. Sci. B Polym. Phys</addtitle><description>Broadband dielectric spectroscopy is used to investigate molecular dynamics and charge transport in three hyperbranched polyester amides with hydroxyl, phenyl, and stearate terminal groups. At higher temperatures, the dielectric spectra are interpreted in terms of hopping conduction in a spatially randomly varying energy landscape, whereas two secondary dipolar relaxations attributed to librations of the terminal and amide groups dominate the low temperature regime. Despite a shift of more than 3 decades in the dc conductivity upon variation of the end groups, the Barton-Nakajima-Namikawa relation is shown to hold.</description><subject>Amides</subject><subject>Applied sciences</subject><subject>Broadband</subject><subject>charge transport</subject><subject>conducting polymers</subject><subject>dielectric properties</subject><subject>dielectric relaxation</subject><subject>Direct current</subject><subject>Electrical, magnetic and optical properties</subject><subject>Exact sciences and technology</subject><subject>glassy polymers</subject><subject>Molecular dynamics</subject><subject>Organic polymers</subject><subject>Phenyls</subject><subject>Physicochemistry of polymers</subject><subject>polyamides</subject><subject>Polyester resins</subject><subject>Properties and characterization</subject><subject>Reproduction</subject><subject>Terminals</subject><issn>0887-6266</issn><issn>1099-0488</issn><issn>1099-0488</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kM1P3DAQxa2qlbqlvfQfaC4VUqVQfxDbc4RV-ZBWpdKCKvViOc64GLLJYmeB_Pc4hHLsaQ7ze2_mPUI-M3rAKOXft31bH3AGUr4hC0YBSnqo9VuyoFqrUnIp35MPKd1QmncVLMh6ja7vGhvHImJrH-0Q-i4VtmsKbNENMTjbFhOyc0O4D8NYhK64HrcY62g7d41NkY-OmAaMhd2EBtNH8s7bNuGnl7lHrk5-XC7PytXF6fnyaFW6QyFk2dTgKsUEaCHRcgq1V1gJLTxVqEEJjqC5ZUA1gsRaMsdBWdH4qvIgvdgj-7PvNvZ3u_yB2YTksG1th_0uGaBMQm5FZ_LbTLrYpxTRm20MmxzaMGqm4sxUnHkuLsNfX2xtyuH9FDOkVwXnwEXFJ47N3ENocfyPo_l1sTr-513OmpD7enzV2HhrpBKqMr9_nprL5TFVZ8DNn8x_mXlve2P_xvzH1ZpTJijTkgomxBOqMpaT</recordid><startdate>20100715</startdate><enddate>20100715</enddate><creator>Turky, G</creator><creator>Sangoro, J.R</creator><creator>Abdel Rehim, M</creator><creator>Kremer, F</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20100715</creationdate><title>Secondary relaxations and electrical conductivity in hyperbranched polyester amides</title><author>Turky, G ; Sangoro, J.R ; Abdel Rehim, M ; Kremer, F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4336-db9c57139836ea209bf7e5383f07e89732e982a1908e96eb61c297a3df55f96f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Amides</topic><topic>Applied sciences</topic><topic>Broadband</topic><topic>charge transport</topic><topic>conducting polymers</topic><topic>dielectric properties</topic><topic>dielectric relaxation</topic><topic>Direct current</topic><topic>Electrical, magnetic and optical properties</topic><topic>Exact sciences and technology</topic><topic>glassy polymers</topic><topic>Molecular dynamics</topic><topic>Organic polymers</topic><topic>Phenyls</topic><topic>Physicochemistry of polymers</topic><topic>polyamides</topic><topic>Polyester resins</topic><topic>Properties and characterization</topic><topic>Reproduction</topic><topic>Terminals</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Turky, G</creatorcontrib><creatorcontrib>Sangoro, J.R</creatorcontrib><creatorcontrib>Abdel Rehim, M</creatorcontrib><creatorcontrib>Kremer, F</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</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 polymer science. Part B, Polymer physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Turky, G</au><au>Sangoro, J.R</au><au>Abdel Rehim, M</au><au>Kremer, F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Secondary relaxations and electrical conductivity in hyperbranched polyester amides</atitle><jtitle>Journal of polymer science. Part B, Polymer physics</jtitle><addtitle>J. Polym. Sci. B Polym. Phys</addtitle><date>2010-07-15</date><risdate>2010</risdate><volume>48</volume><issue>14</issue><spage>1651</spage><epage>1657</epage><pages>1651-1657</pages><issn>0887-6266</issn><issn>1099-0488</issn><eissn>1099-0488</eissn><coden>JPLPAY</coden><abstract>Broadband dielectric spectroscopy is used to investigate molecular dynamics and charge transport in three hyperbranched polyester amides with hydroxyl, phenyl, and stearate terminal groups. At higher temperatures, the dielectric spectra are interpreted in terms of hopping conduction in a spatially randomly varying energy landscape, whereas two secondary dipolar relaxations attributed to librations of the terminal and amide groups dominate the low temperature regime. Despite a shift of more than 3 decades in the dc conductivity upon variation of the end groups, the Barton-Nakajima-Namikawa relation is shown to hold.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/polb.21966</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0887-6266 |
| ispartof | Journal of polymer science. Part B, Polymer physics, 2010-07, Vol.48 (14), p.1651-1657 |
| issn | 0887-6266 1099-0488 1099-0488 |
| language | eng |
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| source | Wiley Online Library All Journals |
| subjects | Amides Applied sciences Broadband charge transport conducting polymers dielectric properties dielectric relaxation Direct current Electrical, magnetic and optical properties Exact sciences and technology glassy polymers Molecular dynamics Organic polymers Phenyls Physicochemistry of polymers polyamides Polyester resins Properties and characterization Reproduction Terminals |
| title | Secondary relaxations and electrical conductivity in hyperbranched polyester amides |
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