Fragility index of drawn or annealed poly(ethylene terephthalate) films studied by thermally stimulated depolarisation currents
According to the ‘strong-fragile’ glass forming liquid concept, amorphous poly(ethylene terephthalate) (PET) must be classified as a ‘fragile’ supercooled liquid. In this work we show that the value of the fragility index of the glassy material ( m g) can be obtained by means of Thermally Stimulated...
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| Veröffentlicht in: | Polymer (Guilford) 2003-06, Vol.44 (14), p.3995-4001 |
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| creator | Saiter, J.M. Dargent, E. Kattan, M. Cabot, C. Grenet, J. |
| description | According to the ‘strong-fragile’ glass forming liquid concept, amorphous poly(ethylene terephthalate) (PET) must be classified as a ‘fragile’ supercooled liquid. In this work we show that the value of the fragility index of the glassy material (
m
g) can be obtained by means of Thermally Stimulated Depolarisation Currents measurements. Experiments were carried out on different PET for which the molecular mobility of the vitreous domain was constrained by the existence of a crystalline phase. This crystalline phase was obtained in two different ways, i.e. by thermal cold crystallisation or by a uniaxial hot-drawing method. Depending on the degree of crystallinity, but whatever the nature of the crystalline morphology (spherulitic or oriented crystallites), it is found that the initial fragile character becomes stronger as the degree of crystallinity increases. |
| doi_str_mv | 10.1016/S0032-3861(03)00312-4 |
| format | Article |
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m
g) can be obtained by means of Thermally Stimulated Depolarisation Currents measurements. Experiments were carried out on different PET for which the molecular mobility of the vitreous domain was constrained by the existence of a crystalline phase. This crystalline phase was obtained in two different ways, i.e. by thermal cold crystallisation or by a uniaxial hot-drawing method. Depending on the degree of crystallinity, but whatever the nature of the crystalline morphology (spherulitic or oriented crystallites), it is found that the initial fragile character becomes stronger as the degree of crystallinity increases.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/S0032-3861(03)00312-4</identifier><identifier>CODEN: POLMAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Fragility ; Organic polymers ; Physicochemistry of polymers ; Poly(ethylene terephthalate) ; Properties and characterization ; Thermal and thermodynamic properties ; TSDC</subject><ispartof>Polymer (Guilford), 2003-06, Vol.44 (14), p.3995-4001</ispartof><rights>2003 Elsevier Science Ltd</rights><rights>2003 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-8cbda430fd367ea9c54bc50591280403d84148e6701010ba4bb4e8eb2aa4d8f83</citedby><cites>FETCH-LOGICAL-c434t-8cbda430fd367ea9c54bc50591280403d84148e6701010ba4bb4e8eb2aa4d8f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0032-3861(03)00312-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14820347$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Saiter, J.M.</creatorcontrib><creatorcontrib>Dargent, E.</creatorcontrib><creatorcontrib>Kattan, M.</creatorcontrib><creatorcontrib>Cabot, C.</creatorcontrib><creatorcontrib>Grenet, J.</creatorcontrib><title>Fragility index of drawn or annealed poly(ethylene terephthalate) films studied by thermally stimulated depolarisation currents</title><title>Polymer (Guilford)</title><description>According to the ‘strong-fragile’ glass forming liquid concept, amorphous poly(ethylene terephthalate) (PET) must be classified as a ‘fragile’ supercooled liquid. In this work we show that the value of the fragility index of the glassy material (
m
g) can be obtained by means of Thermally Stimulated Depolarisation Currents measurements. Experiments were carried out on different PET for which the molecular mobility of the vitreous domain was constrained by the existence of a crystalline phase. This crystalline phase was obtained in two different ways, i.e. by thermal cold crystallisation or by a uniaxial hot-drawing method. Depending on the degree of crystallinity, but whatever the nature of the crystalline morphology (spherulitic or oriented crystallites), it is found that the initial fragile character becomes stronger as the degree of crystallinity increases.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fragility</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Poly(ethylene terephthalate)</subject><subject>Properties and characterization</subject><subject>Thermal and thermodynamic properties</subject><subject>TSDC</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkE1v1DAQhi0EEkvhJyD5AmoPgfFHNt4TQhUtSJU4AGdrYk9YI8dZbKclJ_462W4FR06jGT3vjOZh7KWANwLE9u0XACUbZbbiHNTF2gjZ6EdsI0ynGil34jHb_EWesmel_AAA2Uq9Yb-vMn4PMdSFh-TpF58G7jPeJT5ljikRRvL8MMXlnOp-iZSIV8p02Nc9Rqx0wYcQx8JLnX1Y0X7hdU95xBiXdRjG-Uh57mldgjkUrGFK3M05U6rlOXsyYCz04qGesW9XH75efmxuPl9_unx_0zitdG2M6z1qBYNX245w51rduxbanZAGNChvtNCGth2sRqBH3feaDPUSUXszGHXGXp_2HvL0c6ZS7RiKoxgx0TQXKztjDEi9gu0JdHkqJdNgDzmMmBcrwB5123vd9ujSgrL3uu0x9-rhABaHcciYXCj_wtpIULpbuXcnjtZvbwNlW1yg5MiHTK5aP4X_XPoDSdiXFg</recordid><startdate>20030601</startdate><enddate>20030601</enddate><creator>Saiter, J.M.</creator><creator>Dargent, E.</creator><creator>Kattan, M.</creator><creator>Cabot, C.</creator><creator>Grenet, J.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20030601</creationdate><title>Fragility index of drawn or annealed poly(ethylene terephthalate) films studied by thermally stimulated depolarisation currents</title><author>Saiter, J.M. ; Dargent, E. ; Kattan, M. ; Cabot, C. ; Grenet, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c434t-8cbda430fd367ea9c54bc50591280403d84148e6701010ba4bb4e8eb2aa4d8f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Fragility</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Poly(ethylene terephthalate)</topic><topic>Properties and characterization</topic><topic>Thermal and thermodynamic properties</topic><topic>TSDC</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saiter, J.M.</creatorcontrib><creatorcontrib>Dargent, E.</creatorcontrib><creatorcontrib>Kattan, M.</creatorcontrib><creatorcontrib>Cabot, C.</creatorcontrib><creatorcontrib>Grenet, J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saiter, J.M.</au><au>Dargent, E.</au><au>Kattan, M.</au><au>Cabot, C.</au><au>Grenet, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fragility index of drawn or annealed poly(ethylene terephthalate) films studied by thermally stimulated depolarisation currents</atitle><jtitle>Polymer (Guilford)</jtitle><date>2003-06-01</date><risdate>2003</risdate><volume>44</volume><issue>14</issue><spage>3995</spage><epage>4001</epage><pages>3995-4001</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>According to the ‘strong-fragile’ glass forming liquid concept, amorphous poly(ethylene terephthalate) (PET) must be classified as a ‘fragile’ supercooled liquid. In this work we show that the value of the fragility index of the glassy material (
m
g) can be obtained by means of Thermally Stimulated Depolarisation Currents measurements. Experiments were carried out on different PET for which the molecular mobility of the vitreous domain was constrained by the existence of a crystalline phase. This crystalline phase was obtained in two different ways, i.e. by thermal cold crystallisation or by a uniaxial hot-drawing method. Depending on the degree of crystallinity, but whatever the nature of the crystalline morphology (spherulitic or oriented crystallites), it is found that the initial fragile character becomes stronger as the degree of crystallinity increases.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0032-3861(03)00312-4</doi><tpages>7</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Exact sciences and technology Fragility Organic polymers Physicochemistry of polymers Poly(ethylene terephthalate) Properties and characterization Thermal and thermodynamic properties TSDC |
| title | Fragility index of drawn or annealed poly(ethylene terephthalate) films studied by thermally stimulated depolarisation currents |
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