Thermally induced reorganization in LCP fibers: Molecular origin of mechanical strength
The molecular reorganization occurring in liquid crystalline polymer fiber during heat treatment is of great interest for many commercial reasons. Using thermal analysis techniques, WAXS and real time temperature dependent synchrotron SAXS, the structure and morphology of commercial LCP (liquid crys...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2008-07, Vol.93 (1), p.175-182 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Saw, C. K. Collins, G. Menczel, J. Jaffe, M. |
| description | The molecular reorganization occurring in liquid crystalline polymer fiber during heat treatment is of great interest for many commercial reasons. Using thermal analysis techniques, WAXS and real time temperature dependent synchrotron SAXS, the structure and morphology of commercial LCP (liquid crystalline polymer), Vectran®, HBA/HNA (
p
-hydroxybenzoic acid/6-hydroxy-2-naphthoic acid), and its variant polymer fiber COTBP, HBA/HNA/BP/TA (BP-benzophenone, TA-terephthalic acid), have been examined. Both fibers have the typical liquid crystalline polymer structure, i.e., highly aligned with aperiodic sequencing along the fiber axis. There is a three-fold increase in strength in both fibers with heat treatment; however, the modulus is observed to increase significantly in COTBP but not in Vectran®.
This paper reports on the changes and the differences on the structural and morphological behavior for both the as-spun and heat-treated LCP fibers. We propose an ‘oriented entanglement’ model to describe the differences between the two polymer fibers. |
| doi_str_mv | 10.1007/s10973-007-8867-0 |
| format | Article |
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p
-hydroxybenzoic acid/6-hydroxy-2-naphthoic acid), and its variant polymer fiber COTBP, HBA/HNA/BP/TA (BP-benzophenone, TA-terephthalic acid), have been examined. Both fibers have the typical liquid crystalline polymer structure, i.e., highly aligned with aperiodic sequencing along the fiber axis. There is a three-fold increase in strength in both fibers with heat treatment; however, the modulus is observed to increase significantly in COTBP but not in Vectran®.
This paper reports on the changes and the differences on the structural and morphological behavior for both the as-spun and heat-treated LCP fibers. We propose an ‘oriented entanglement’ model to describe the differences between the two polymer fibers.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>EISSN: 1572-8943</identifier><identifier>DOI: 10.1007/s10973-007-8867-0</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Analytical Chemistry ; Applied sciences ; Chemistry ; Chemistry and Materials Science ; Exact sciences and technology ; FIBERS ; Fibers and threads ; Forms of application and semi-finished materials ; HEAT TREATMENTS ; Inorganic Chemistry ; MATERIALS SCIENCE ; Measurement Science and Instrumentation ; MORPHOLOGY ; national synchrotron light source ; ORIGIN ; PARTICLE ACCELERATORS ; Physical Chemistry ; Polymer industry, paints, wood ; Polymer Sciences ; POLYMERS ; SYNCHROTRONS ; Technology of polymers ; THERMAL ANALYSIS</subject><ispartof>Journal of thermal analysis and calorimetry, 2008-07, Vol.93 (1), p.175-182</ispartof><rights>Springer Science+Business Media, LLC. 2008</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c2110-cec80843b71cecda4740e032b38e2b42283a5e9ea290651cf2e4c58d847f34073</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-007-8867-0$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-007-8867-0$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,309,310,314,780,784,789,790,885,23928,23929,25138,27922,27923,41486,42555,51317</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20521593$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/959926$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Saw, C. K.</creatorcontrib><creatorcontrib>Collins, G.</creatorcontrib><creatorcontrib>Menczel, J.</creatorcontrib><creatorcontrib>Jaffe, M.</creatorcontrib><creatorcontrib>Brookhaven National Laboratory (BNL) National Synchrotron Light Source</creatorcontrib><title>Thermally induced reorganization in LCP fibers: Molecular origin of mechanical strength</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>The molecular reorganization occurring in liquid crystalline polymer fiber during heat treatment is of great interest for many commercial reasons. Using thermal analysis techniques, WAXS and real time temperature dependent synchrotron SAXS, the structure and morphology of commercial LCP (liquid crystalline polymer), Vectran®, HBA/HNA (
p
-hydroxybenzoic acid/6-hydroxy-2-naphthoic acid), and its variant polymer fiber COTBP, HBA/HNA/BP/TA (BP-benzophenone, TA-terephthalic acid), have been examined. Both fibers have the typical liquid crystalline polymer structure, i.e., highly aligned with aperiodic sequencing along the fiber axis. There is a three-fold increase in strength in both fibers with heat treatment; however, the modulus is observed to increase significantly in COTBP but not in Vectran®.
This paper reports on the changes and the differences on the structural and morphological behavior for both the as-spun and heat-treated LCP fibers. We propose an ‘oriented entanglement’ model to describe the differences between the two polymer fibers.</description><subject>Analytical Chemistry</subject><subject>Applied sciences</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Exact sciences and technology</subject><subject>FIBERS</subject><subject>Fibers and threads</subject><subject>Forms of application and semi-finished materials</subject><subject>HEAT TREATMENTS</subject><subject>Inorganic Chemistry</subject><subject>MATERIALS SCIENCE</subject><subject>Measurement Science and Instrumentation</subject><subject>MORPHOLOGY</subject><subject>national synchrotron light source</subject><subject>ORIGIN</subject><subject>PARTICLE ACCELERATORS</subject><subject>Physical Chemistry</subject><subject>Polymer industry, paints, wood</subject><subject>Polymer Sciences</subject><subject>POLYMERS</subject><subject>SYNCHROTRONS</subject><subject>Technology of polymers</subject><subject>THERMAL ANALYSIS</subject><issn>1388-6150</issn><issn>1588-2926</issn><issn>1572-8943</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kD9PwzAQxS0EElXpB2ALA6PL2Y4Te0QV_6RKMJTZcpxLa5Q6lZ0O5dPjKoiR6X66e--k9wi5ZbBkAPVDYqBrQTNSpaqawgWZMakU5ZpXl5lF5opJuCaLlHwDnEGlpdIzstzsMO5t358KH9qjw7aIOMStDf7bjn4IeV2sVx9F5xuM6YZcdbZPuPidc_L5_LRZvdL1-8vb6nFNHWcMqEOnQJWiqVnG1pZ1CQiCN0Ihb0rOlbASNVquoZLMdRxLJ1WryroTJdRiTu6mv0MavUnOj-h2bggB3Wi01DlX1rBJ4-KQUsTOHKLf23gyDMy5FzP1Ys547sVA9txPnoNNzvZdtMH59GfkIDmTWmQdn3Qpn8IWo_kajjHkyP88_wHhGHCN</recordid><startdate>200807</startdate><enddate>200807</enddate><creator>Saw, C. K.</creator><creator>Collins, G.</creator><creator>Menczel, J.</creator><creator>Jaffe, M.</creator><general>Springer Netherlands</general><general>Springer</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>200807</creationdate><title>Thermally induced reorganization in LCP fibers</title><author>Saw, C. K. ; Collins, G. ; Menczel, J. ; Jaffe, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2110-cec80843b71cecda4740e032b38e2b42283a5e9ea290651cf2e4c58d847f34073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Analytical Chemistry</topic><topic>Applied sciences</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Exact sciences and technology</topic><topic>FIBERS</topic><topic>Fibers and threads</topic><topic>Forms of application and semi-finished materials</topic><topic>HEAT TREATMENTS</topic><topic>Inorganic Chemistry</topic><topic>MATERIALS SCIENCE</topic><topic>Measurement Science and Instrumentation</topic><topic>MORPHOLOGY</topic><topic>national synchrotron light source</topic><topic>ORIGIN</topic><topic>PARTICLE ACCELERATORS</topic><topic>Physical Chemistry</topic><topic>Polymer industry, paints, wood</topic><topic>Polymer Sciences</topic><topic>POLYMERS</topic><topic>SYNCHROTRONS</topic><topic>Technology of polymers</topic><topic>THERMAL ANALYSIS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saw, C. K.</creatorcontrib><creatorcontrib>Collins, G.</creatorcontrib><creatorcontrib>Menczel, J.</creatorcontrib><creatorcontrib>Jaffe, M.</creatorcontrib><creatorcontrib>Brookhaven National Laboratory (BNL) National Synchrotron Light Source</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saw, C. K.</au><au>Collins, G.</au><au>Menczel, J.</au><au>Jaffe, M.</au><aucorp>Brookhaven National Laboratory (BNL) National Synchrotron Light Source</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermally induced reorganization in LCP fibers: Molecular origin of mechanical strength</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2008-07</date><risdate>2008</risdate><volume>93</volume><issue>1</issue><spage>175</spage><epage>182</epage><pages>175-182</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><eissn>1572-8943</eissn><abstract>The molecular reorganization occurring in liquid crystalline polymer fiber during heat treatment is of great interest for many commercial reasons. Using thermal analysis techniques, WAXS and real time temperature dependent synchrotron SAXS, the structure and morphology of commercial LCP (liquid crystalline polymer), Vectran®, HBA/HNA (
p
-hydroxybenzoic acid/6-hydroxy-2-naphthoic acid), and its variant polymer fiber COTBP, HBA/HNA/BP/TA (BP-benzophenone, TA-terephthalic acid), have been examined. Both fibers have the typical liquid crystalline polymer structure, i.e., highly aligned with aperiodic sequencing along the fiber axis. There is a three-fold increase in strength in both fibers with heat treatment; however, the modulus is observed to increase significantly in COTBP but not in Vectran®.
This paper reports on the changes and the differences on the structural and morphological behavior for both the as-spun and heat-treated LCP fibers. We propose an ‘oriented entanglement’ model to describe the differences between the two polymer fibers.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10973-007-8867-0</doi><tpages>8</tpages></addata></record> |
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| subjects | Analytical Chemistry Applied sciences Chemistry Chemistry and Materials Science Exact sciences and technology FIBERS Fibers and threads Forms of application and semi-finished materials HEAT TREATMENTS Inorganic Chemistry MATERIALS SCIENCE Measurement Science and Instrumentation MORPHOLOGY national synchrotron light source ORIGIN PARTICLE ACCELERATORS Physical Chemistry Polymer industry, paints, wood Polymer Sciences POLYMERS SYNCHROTRONS Technology of polymers THERMAL ANALYSIS |
| title | Thermally induced reorganization in LCP fibers: Molecular origin of mechanical strength |
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