Microrheological Modeling of Flow-Induced Crystallization
The problem of flow-induced crystallization (FIC) of polymer melts is addressed via a microrheological approach. In particular, the Doi−Edwards model with the so-called independent alignment approximation (DE−IAA) is used to calculate the flow-induced change of free energy. Subsequently, the crystal...
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| Veröffentlicht in: | Macromolecules 2001-07, Vol.34 (14), p.5030-5036 |
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| creator | Coppola, Salvatore Grizzuti, Nino Maffettone, Pier Luca |
| description | The problem of flow-induced crystallization (FIC) of polymer melts is addressed via a microrheological approach. In particular, the Doi−Edwards model with the so-called independent alignment approximation (DE−IAA) is used to calculate the flow-induced change of free energy. Subsequently, the crystallization induction time, i.e., the nucleation characteristic time, is calculated in isothermal steady shear and uniaxial elongational flows. Asymptotic, analytical expressions for the induction time are also derived in the limit of low and high Deborah number (the product of the deformation rate and the polymer relaxation time). The DE−IAA model is found to give more realistic predictions than those of simpler, dumbbell-like models already proposed in the literature. When compared to existing FIC experimental data in shear flow, good quantitative agreement is found with the polymer relaxation time as the only adjustable parameter of the model. |
| doi_str_mv | 10.1021/ma010275e |
| format | Article |
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In particular, the Doi−Edwards model with the so-called independent alignment approximation (DE−IAA) is used to calculate the flow-induced change of free energy. Subsequently, the crystallization induction time, i.e., the nucleation characteristic time, is calculated in isothermal steady shear and uniaxial elongational flows. Asymptotic, analytical expressions for the induction time are also derived in the limit of low and high Deborah number (the product of the deformation rate and the polymer relaxation time). The DE−IAA model is found to give more realistic predictions than those of simpler, dumbbell-like models already proposed in the literature. When compared to existing FIC experimental data in shear flow, good quantitative agreement is found with the polymer relaxation time as the only adjustable parameter of the model.</description><identifier>ISSN: 0024-9297</identifier><identifier>EISSN: 1520-5835</identifier><identifier>DOI: 10.1021/ma010275e</identifier><identifier>CODEN: MAMOBX</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Crystallization ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Properties and characterization</subject><ispartof>Macromolecules, 2001-07, Vol.34 (14), p.5030-5036</ispartof><rights>Copyright © 2001 American Chemical Society</rights><rights>2001 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a324t-3acca2e5f30a1e76cc5fa5ba4b1d0b186a34db4c160e733e0dcfabe0ebea8f203</citedby><cites>FETCH-LOGICAL-a324t-3acca2e5f30a1e76cc5fa5ba4b1d0b186a34db4c160e733e0dcfabe0ebea8f203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ma010275e$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ma010275e$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,778,782,2754,27063,27911,27912,56725,56775</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1037066$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Coppola, Salvatore</creatorcontrib><creatorcontrib>Grizzuti, Nino</creatorcontrib><creatorcontrib>Maffettone, Pier Luca</creatorcontrib><title>Microrheological Modeling of Flow-Induced Crystallization</title><title>Macromolecules</title><addtitle>Macromolecules</addtitle><description>The problem of flow-induced crystallization (FIC) of polymer melts is addressed via a microrheological approach. In particular, the Doi−Edwards model with the so-called independent alignment approximation (DE−IAA) is used to calculate the flow-induced change of free energy. Subsequently, the crystallization induction time, i.e., the nucleation characteristic time, is calculated in isothermal steady shear and uniaxial elongational flows. Asymptotic, analytical expressions for the induction time are also derived in the limit of low and high Deborah number (the product of the deformation rate and the polymer relaxation time). The DE−IAA model is found to give more realistic predictions than those of simpler, dumbbell-like models already proposed in the literature. When compared to existing FIC experimental data in shear flow, good quantitative agreement is found with the polymer relaxation time as the only adjustable parameter of the model.</description><subject>Applied sciences</subject><subject>Crystallization</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Properties and characterization</subject><issn>0024-9297</issn><issn>1520-5835</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNptj7FOwzAQhi0EEqUw8AYZYGAInOM4TkcUUajUioqW2bo4dnFJ48pOBeXpCQqqGJj-4b7_7j5CLincUkjo3QahS8H1ERlQnkDMc8aPyQAgSeNRMhKn5CyENQClPGUDMppZ5Z1_0652K6uwjmau0rVtVpEz0bh2H_GkqXZKV1Hh96HFurZf2FrXnJMTg3XQF785JK_jh2XxFE-fHyfF_TRGlqRtzFApTDQ3DJBqkSnFDfIS05JWUNI8Q5ZWZapoBlowpqFSBksNutSYmwTYkNz0e7s_Q_DayK23G_R7SUH-OMuDc8de9ewWQ-diPDbKhj8FJiDLOizuMRta_XkYo3-XmWCCy-V8IafF4mWej3M57_jrnkcV5NrtfNMJ_3P-GziAcpM</recordid><startdate>20010703</startdate><enddate>20010703</enddate><creator>Coppola, Salvatore</creator><creator>Grizzuti, Nino</creator><creator>Maffettone, Pier Luca</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20010703</creationdate><title>Microrheological Modeling of Flow-Induced Crystallization</title><author>Coppola, Salvatore ; Grizzuti, Nino ; Maffettone, Pier Luca</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a324t-3acca2e5f30a1e76cc5fa5ba4b1d0b186a34db4c160e733e0dcfabe0ebea8f203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Applied sciences</topic><topic>Crystallization</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Properties and characterization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Coppola, Salvatore</creatorcontrib><creatorcontrib>Grizzuti, Nino</creatorcontrib><creatorcontrib>Maffettone, Pier Luca</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Macromolecules</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Coppola, Salvatore</au><au>Grizzuti, Nino</au><au>Maffettone, Pier Luca</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microrheological Modeling of Flow-Induced Crystallization</atitle><jtitle>Macromolecules</jtitle><addtitle>Macromolecules</addtitle><date>2001-07-03</date><risdate>2001</risdate><volume>34</volume><issue>14</issue><spage>5030</spage><epage>5036</epage><pages>5030-5036</pages><issn>0024-9297</issn><eissn>1520-5835</eissn><coden>MAMOBX</coden><abstract>The problem of flow-induced crystallization (FIC) of polymer melts is addressed via a microrheological approach. In particular, the Doi−Edwards model with the so-called independent alignment approximation (DE−IAA) is used to calculate the flow-induced change of free energy. Subsequently, the crystallization induction time, i.e., the nucleation characteristic time, is calculated in isothermal steady shear and uniaxial elongational flows. Asymptotic, analytical expressions for the induction time are also derived in the limit of low and high Deborah number (the product of the deformation rate and the polymer relaxation time). The DE−IAA model is found to give more realistic predictions than those of simpler, dumbbell-like models already proposed in the literature. When compared to existing FIC experimental data in shear flow, good quantitative agreement is found with the polymer relaxation time as the only adjustable parameter of the model.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ma010275e</doi><tpages>7</tpages></addata></record> |
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| subjects | Applied sciences Crystallization Exact sciences and technology Organic polymers Physicochemistry of polymers Properties and characterization |
| title | Microrheological Modeling of Flow-Induced Crystallization |
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