Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes
Polyvinyl pyrrolidone/polyvinyl alcohol (PVP/PVA) and polyvinyl pyrrolidone/starch (PVP/St) blends were prepared with different compositions. The compatibility studies indicate that PVP/PVA is compatible while PVP/St is incompatible. The addition of glycerol and glutaraldehyde can improve to some ex...
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| Veröffentlicht in: | Journal of applied polymer science 2012-06, Vol.124 (5), p.3879-3891 |
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| creator | El-Houssiny, A. S. Ward, A. A. M. Mansour, S. H. Abd- El- Messieh, S. L. |
| description | Polyvinyl pyrrolidone/polyvinyl alcohol (PVP/PVA) and polyvinyl pyrrolidone/starch (PVP/St) blends were prepared with different compositions. The compatibility studies indicate that PVP/PVA is compatible while PVP/St is incompatible. The addition of glycerol and glutaraldehyde can improve to some extent the phase separation behavior between PVP and St. The permittivity ε′ and the dielectric loss ε″ were measured in the frequency range 0.01 Hz up to 10 MHz and temperatures from 30 up to 90°C. It is found that the blend ratio (50/50) of both investigated systems is preferable for insulation purposes in comparable with the other blends under investigation. The data of the loss electric modulus M″ was calculated from the dielectric parameters ε′ and ε″and analyzed into three relaxation mechanisms ascribing the cooperative motion of the main and side chains τ1 (αβ), the side chain motion τ2 (β) and the segmental motion of the groups attached to the side chains τ3 (βγ). The activation energy corresponds to the second relaxation process ΔH2 was calculated using Arrhenius equation and found to be in the range which justifies the presumption of β‐relaxation process. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
| doi_str_mv | 10.1002/app.35483 |
| format | Article |
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S. ; Ward, A. A. M. ; Mansour, S. H. ; Abd- El- Messieh, S. L.</creator><creatorcontrib>El-Houssiny, A. S. ; Ward, A. A. M. ; Mansour, S. H. ; Abd- El- Messieh, S. L.</creatorcontrib><description>Polyvinyl pyrrolidone/polyvinyl alcohol (PVP/PVA) and polyvinyl pyrrolidone/starch (PVP/St) blends were prepared with different compositions. The compatibility studies indicate that PVP/PVA is compatible while PVP/St is incompatible. The addition of glycerol and glutaraldehyde can improve to some extent the phase separation behavior between PVP and St. The permittivity ε′ and the dielectric loss ε″ were measured in the frequency range 0.01 Hz up to 10 MHz and temperatures from 30 up to 90°C. It is found that the blend ratio (50/50) of both investigated systems is preferable for insulation purposes in comparable with the other blends under investigation. The data of the loss electric modulus M″ was calculated from the dielectric parameters ε′ and ε″and analyzed into three relaxation mechanisms ascribing the cooperative motion of the main and side chains τ1 (αβ), the side chain motion τ2 (β) and the segmental motion of the groups attached to the side chains τ3 (βγ). The activation energy corresponds to the second relaxation process ΔH2 was calculated using Arrhenius equation and found to be in the range which justifies the presumption of β‐relaxation process. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.35483</identifier><identifier>CODEN: JAPNAB</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Applied sciences ; Beta ; biodegradable polymers ; blends ; compatibility ; Crystal structure ; dielectric ; Exact sciences and technology ; Materials science ; Organic polymers ; Physicochemistry of polymers ; Polymers ; Properties and characterization ; Rheology and viscoelasticity ; Thermal and thermodynamic properties</subject><ispartof>Journal of applied polymer science, 2012-06, Vol.124 (5), p.3879-3891</ispartof><rights>Copyright © 2011 Wiley Periodicals, Inc.</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4353-25294c37bcffc928273cf2fe7de5955ab0f951ce25b556fe312cc82919fb80e3</citedby><cites>FETCH-LOGICAL-c4353-25294c37bcffc928273cf2fe7de5955ab0f951ce25b556fe312cc82919fb80e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.35483$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.35483$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27922,27923,45572,45573</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25648085$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>El-Houssiny, A. S.</creatorcontrib><creatorcontrib>Ward, A. A. M.</creatorcontrib><creatorcontrib>Mansour, S. H.</creatorcontrib><creatorcontrib>Abd- El- Messieh, S. L.</creatorcontrib><title>Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>Polyvinyl pyrrolidone/polyvinyl alcohol (PVP/PVA) and polyvinyl pyrrolidone/starch (PVP/St) blends were prepared with different compositions. The compatibility studies indicate that PVP/PVA is compatible while PVP/St is incompatible. The addition of glycerol and glutaraldehyde can improve to some extent the phase separation behavior between PVP and St. The permittivity ε′ and the dielectric loss ε″ were measured in the frequency range 0.01 Hz up to 10 MHz and temperatures from 30 up to 90°C. It is found that the blend ratio (50/50) of both investigated systems is preferable for insulation purposes in comparable with the other blends under investigation. The data of the loss electric modulus M″ was calculated from the dielectric parameters ε′ and ε″and analyzed into three relaxation mechanisms ascribing the cooperative motion of the main and side chains τ1 (αβ), the side chain motion τ2 (β) and the segmental motion of the groups attached to the side chains τ3 (βγ). The activation energy corresponds to the second relaxation process ΔH2 was calculated using Arrhenius equation and found to be in the range which justifies the presumption of β‐relaxation process. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</description><subject>Applied sciences</subject><subject>Beta</subject><subject>biodegradable polymers</subject><subject>blends</subject><subject>compatibility</subject><subject>Crystal structure</subject><subject>dielectric</subject><subject>Exact sciences and technology</subject><subject>Materials science</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymers</subject><subject>Properties and characterization</subject><subject>Rheology and viscoelasticity</subject><subject>Thermal and thermodynamic properties</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp10E9rFDEYBvAgCq6tB7_BgAh6mDZ_5p1JjrXYVVx0haLQS8hk3khqOhmTHet8-6Zu24PQQ8ghv-chPIS8YvSIUcqPzTQdCWikeEJWjKqubloun5JVeWO1VAqekxc5X1LKGNB2RT6_93HAn8kMpg9YlTMOuepNxqGKYzXFsPzx4xKqaUkpBj_EESsXU-XHPAez87doTlPMmA_JM2dCxpd39wE5P_twfvqx3nxdfzo92dS2ESBqDlw1VnS9dc4qLnknrOMOuwFBAZieOgXMIoceoHUoGLdWcsWU6yVFcUDe7munFH_PmHf6ymeLIZgR45w1g4Y1oulUV-jr_-hlnNNYPlcUa5VSlMmi3u2VTTHnhE5PyV-ZtGhG9e2quqyq_61a7Ju7RpOtCS6Z0fr8EODQNpJKKO547659wOXxQn2y3d431_uEzzv8-5Aw6ZduO9GB_vFlrS-26833i2-gmbgB_viVYg</recordid><startdate>20120605</startdate><enddate>20120605</enddate><creator>El-Houssiny, A. S.</creator><creator>Ward, A. A. M.</creator><creator>Mansour, S. H.</creator><creator>Abd- El- Messieh, S. L.</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7QO</scope><scope>7T7</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20120605</creationdate><title>Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes</title><author>El-Houssiny, A. S. ; Ward, A. A. M. ; Mansour, S. H. ; Abd- El- Messieh, S. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4353-25294c37bcffc928273cf2fe7de5955ab0f951ce25b556fe312cc82919fb80e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Beta</topic><topic>biodegradable polymers</topic><topic>blends</topic><topic>compatibility</topic><topic>Crystal structure</topic><topic>dielectric</topic><topic>Exact sciences and technology</topic><topic>Materials science</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymers</topic><topic>Properties and characterization</topic><topic>Rheology and viscoelasticity</topic><topic>Thermal and thermodynamic properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>El-Houssiny, A. S.</creatorcontrib><creatorcontrib>Ward, A. A. M.</creatorcontrib><creatorcontrib>Mansour, S. 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L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2012-06-05</date><risdate>2012</risdate><volume>124</volume><issue>5</issue><spage>3879</spage><epage>3891</epage><pages>3879-3891</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>Polyvinyl pyrrolidone/polyvinyl alcohol (PVP/PVA) and polyvinyl pyrrolidone/starch (PVP/St) blends were prepared with different compositions. The compatibility studies indicate that PVP/PVA is compatible while PVP/St is incompatible. The addition of glycerol and glutaraldehyde can improve to some extent the phase separation behavior between PVP and St. The permittivity ε′ and the dielectric loss ε″ were measured in the frequency range 0.01 Hz up to 10 MHz and temperatures from 30 up to 90°C. It is found that the blend ratio (50/50) of both investigated systems is preferable for insulation purposes in comparable with the other blends under investigation. The data of the loss electric modulus M″ was calculated from the dielectric parameters ε′ and ε″and analyzed into three relaxation mechanisms ascribing the cooperative motion of the main and side chains τ1 (αβ), the side chain motion τ2 (β) and the segmental motion of the groups attached to the side chains τ3 (βγ). The activation energy corresponds to the second relaxation process ΔH2 was calculated using Arrhenius equation and found to be in the range which justifies the presumption of β‐relaxation process. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.35483</doi><tpages>13</tpages></addata></record> |
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| subjects | Applied sciences Beta biodegradable polymers blends compatibility Crystal structure dielectric Exact sciences and technology Materials science Organic polymers Physicochemistry of polymers Polymers Properties and characterization Rheology and viscoelasticity Thermal and thermodynamic properties |
| title | Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes |
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