Rheological characterization of ethylene vinyl acetate copolymers
A series of ethylene vinyl acetate (EVA) copolymers was studied by dynamic mechanical spectroscopy to understand the relative influence of composition, structure, and molecular weight distribution on their rheological behavior in the melt. The examination of their viscoelastic properties in a large...
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| Veröffentlicht in: | Journal of applied polymer science 1999-12, Vol.74 (11), p.2625-2630 |
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| container_title | Journal of applied polymer science |
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| creator | Arsac, A. Carrot, C. Guillet, J. |
| description | A series of ethylene vinyl acetate (EVA) copolymers was studied by dynamic mechanical spectroscopy to understand the relative influence of composition, structure, and molecular weight distribution on their rheological behavior in the melt. The examination of their viscoelastic properties in a large temperature range showed that the glass transition temperature is nearly independent on their composition because of the statistical nature of the copolymers, though some long sequence of polyethylene homopolymer may exist at low vinyl acetate (VA) content. The successful use of the time temperature superposition for oscillatory experiments in the melt confirmed the previous remarks, because the application of the Williams Landel Ferry (WLF) equation leads to a unique set of WLF coefficient, whatever the composition of the EVA. This enables the comparison of the rheological behavior in the melt at the same temperature, in the same free volume condition, and at last it was shown that in the terminal zone, the molecular weight distribution is more influent on the behavior of EVA copolymers than their composition. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 2625–2630, 1999 |
| doi_str_mv | 10.1002/(SICI)1097-4628(19991209)74:11<2625::AID-APP9>3.0.CO;2-G |
| format | Article |
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The examination of their viscoelastic properties in a large temperature range showed that the glass transition temperature is nearly independent on their composition because of the statistical nature of the copolymers, though some long sequence of polyethylene homopolymer may exist at low vinyl acetate (VA) content. The successful use of the time temperature superposition for oscillatory experiments in the melt confirmed the previous remarks, because the application of the Williams Landel Ferry (WLF) equation leads to a unique set of WLF coefficient, whatever the composition of the EVA. This enables the comparison of the rheological behavior in the melt at the same temperature, in the same free volume condition, and at last it was shown that in the terminal zone, the molecular weight distribution is more influent on the behavior of EVA copolymers than their composition. © 1999 John Wiley & Sons, Inc. 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Appl. Polym. Sci</addtitle><description>A series of ethylene vinyl acetate (EVA) copolymers was studied by dynamic mechanical spectroscopy to understand the relative influence of composition, structure, and molecular weight distribution on their rheological behavior in the melt. The examination of their viscoelastic properties in a large temperature range showed that the glass transition temperature is nearly independent on their composition because of the statistical nature of the copolymers, though some long sequence of polyethylene homopolymer may exist at low vinyl acetate (VA) content. The successful use of the time temperature superposition for oscillatory experiments in the melt confirmed the previous remarks, because the application of the Williams Landel Ferry (WLF) equation leads to a unique set of WLF coefficient, whatever the composition of the EVA. 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J Appl Polym Sci 74: 2625–2630, 1999</description><subject>Applied sciences</subject><subject>copolymers</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Properties and characterization</subject><subject>rheological behavior</subject><subject>Rheology and viscoelasticity</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v00AQhi0EEqHlP_iAUHtwup9eb0CIyJQQUTVRAYXbaL1Zk6Ubb9h1W9xfj01Ke4ADp9FIM8878yTJW4zGGCFycvRpXs6PMZIiYzkpjrCUEhMkjwWbYPya5IRPJtP5u2y6XMo3dIzG5eIVyWaPktH90uNk1KNwVkjJnybPYvyOEMYc5aNkerEx3vlvViuX6o0KSrcm2FvVWt-kvk5Nu-mcaUx6bZvOpUqbVrUm1X7nXbc1IR4mT2rlonl-Vw-SL-9PP5cfsrPFbF5OzzLNhJRZta54XheUU8GRIYT231U5R0VFmBaqLkRNORfGYLxeV1RpLoqCSSI1rzGTiB4kL_fcXfA_rkxsYWujNs6pxvirCERgzATi_eDX_aAOPsZgatgFu1WhA4xgcAowOIVBDwx64I9TEAwwhsEpQO8UBqdAAUG5AAKzHv3i7gYVe2F1UI228YEvOaNCPlxwY53p_or_j_R_hP_ue3S2R9vYmp_3aBUuIRe9Wlidz-DjOcpXq4slLOkvdHWl5w</recordid><startdate>19991209</startdate><enddate>19991209</enddate><creator>Arsac, A.</creator><creator>Carrot, C.</creator><creator>Guillet, J.</creator><general>John Wiley & Sons, Inc</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19991209</creationdate><title>Rheological characterization of ethylene vinyl acetate copolymers</title><author>Arsac, A. ; Carrot, C. ; Guillet, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4799-bdb56f8353750e223100b6508b24c7af87f3557ee11ddb3ac57884929c5f14903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Applied sciences</topic><topic>copolymers</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Properties and characterization</topic><topic>rheological behavior</topic><topic>Rheology and viscoelasticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Arsac, A.</creatorcontrib><creatorcontrib>Carrot, C.</creatorcontrib><creatorcontrib>Guillet, J.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Arsac, A.</au><au>Carrot, C.</au><au>Guillet, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rheological characterization of ethylene vinyl acetate copolymers</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. 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The successful use of the time temperature superposition for oscillatory experiments in the melt confirmed the previous remarks, because the application of the Williams Landel Ferry (WLF) equation leads to a unique set of WLF coefficient, whatever the composition of the EVA. This enables the comparison of the rheological behavior in the melt at the same temperature, in the same free volume condition, and at last it was shown that in the terminal zone, the molecular weight distribution is more influent on the behavior of EVA copolymers than their composition. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 2625–2630, 1999</abstract><cop>New York</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/(SICI)1097-4628(19991209)74:11<2625::AID-APP9>3.0.CO;2-G</doi><tpages>6</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences copolymers Exact sciences and technology Organic polymers Physicochemistry of polymers Properties and characterization rheological behavior Rheology and viscoelasticity |
| title | Rheological characterization of ethylene vinyl acetate copolymers |
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