study on imidization degree of polyamic acid in solution and ordering degree of its polyimide film
Polyamic acid (PAA) based on pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) can be chemically converted to copolyamic acid-imide (PA-I) which is a partially converted PAA at ambient temperature by treatment with a mixture of acetic anhydride and pyridine. A systematic investigation by rot...
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| Veröffentlicht in: | Journal of materials science 2008, Vol.43 (1), p.338-344 |
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| container_title | Journal of materials science |
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| creator | Zhai, Yan Yang, Qin Zhu, Rongqi Gu, Yi |
| description | Polyamic acid (PAA) based on pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) can be chemically converted to copolyamic acid-imide (PA-I) which is a partially converted PAA at ambient temperature by treatment with a mixture of acetic anhydride and pyridine. A systematic investigation by rotation viscometer and FT-IR revealed that phase separation in PA-I solution occurred when imidization degree was about 26%. Imidization degree of PA-I solution could be controlled by using adequate acetic anhydride amount, initial PAA concentration and imidization time. PA-I solutions with different imidization degree were converted to corresponding polyimide films by thermal imidization. WAXD showed that as imidization degree in PA-I solution increased, the degree of morphologic ordering of final PI film was improved, while tensile strength and modulus increased and ultimate elongation reduced slightly. |
| doi_str_mv | 10.1007/s10853-007-1697-4 |
| format | Article |
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A systematic investigation by rotation viscometer and FT-IR revealed that phase separation in PA-I solution occurred when imidization degree was about 26%. Imidization degree of PA-I solution could be controlled by using adequate acetic anhydride amount, initial PAA concentration and imidization time. PA-I solutions with different imidization degree were converted to corresponding polyimide films by thermal imidization. WAXD showed that as imidization degree in PA-I solution increased, the degree of morphologic ordering of final PI film was improved, while tensile strength and modulus increased and ultimate elongation reduced slightly.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1007/s10853-007-1697-4</identifier><identifier>CODEN: JMTSAS</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>acetic anhydride ; Ambient temperature ; Anhydrides ; Applied sciences ; Characterization and Evaluation of Materials ; Chemical modifications ; Chemical reactions and properties ; Chemistry and Materials Science ; Classical Mechanics ; Crystallography and Scattering Methods ; Dianhydrides ; Elongation ; Exact sciences and technology ; Fourier transform infrared spectroscopy ; Materials Science ; Order disorder ; Organic chemistry ; Organic polymers ; Phase separation ; Physicochemistry of polymers ; Polyimide resins ; Polymer Sciences ; pyridines ; separation ; Solid Mechanics ; Tensile strength ; Viscometers</subject><ispartof>Journal of materials science, 2008, Vol.43 (1), p.338-344</ispartof><rights>Springer Science+Business Media, LLC 2007</rights><rights>2008 INIST-CNRS</rights><rights>Journal of Materials Science is a copyright of Springer, (2007). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-5a1b1903c6986971ddf67115fc40424df9c94dff29bba912a83137c461e72ce23</citedby><cites>FETCH-LOGICAL-c467t-5a1b1903c6986971ddf67115fc40424df9c94dff29bba912a83137c461e72ce23</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/s10853-007-1697-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10853-007-1697-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,4022,27922,27923,27924,41487,42556,51318</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20302608$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhai, Yan</creatorcontrib><creatorcontrib>Yang, Qin</creatorcontrib><creatorcontrib>Zhu, Rongqi</creatorcontrib><creatorcontrib>Gu, Yi</creatorcontrib><title>study on imidization degree of polyamic acid in solution and ordering degree of its polyimide film</title><title>Journal of materials science</title><addtitle>J Mater Sci</addtitle><description>Polyamic acid (PAA) based on pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) can be chemically converted to copolyamic acid-imide (PA-I) which is a partially converted PAA at ambient temperature by treatment with a mixture of acetic anhydride and pyridine. A systematic investigation by rotation viscometer and FT-IR revealed that phase separation in PA-I solution occurred when imidization degree was about 26%. Imidization degree of PA-I solution could be controlled by using adequate acetic anhydride amount, initial PAA concentration and imidization time. PA-I solutions with different imidization degree were converted to corresponding polyimide films by thermal imidization. WAXD showed that as imidization degree in PA-I solution increased, the degree of morphologic ordering of final PI film was improved, while tensile strength and modulus increased and ultimate elongation reduced slightly.</description><subject>acetic anhydride</subject><subject>Ambient temperature</subject><subject>Anhydrides</subject><subject>Applied sciences</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemical modifications</subject><subject>Chemical reactions and properties</subject><subject>Chemistry and Materials Science</subject><subject>Classical Mechanics</subject><subject>Crystallography and Scattering Methods</subject><subject>Dianhydrides</subject><subject>Elongation</subject><subject>Exact sciences and technology</subject><subject>Fourier transform infrared spectroscopy</subject><subject>Materials Science</subject><subject>Order disorder</subject><subject>Organic chemistry</subject><subject>Organic polymers</subject><subject>Phase separation</subject><subject>Physicochemistry of polymers</subject><subject>Polyimide resins</subject><subject>Polymer Sciences</subject><subject>pyridines</subject><subject>separation</subject><subject>Solid Mechanics</subject><subject>Tensile strength</subject><subject>Viscometers</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkkuLFDEUhYMo2I7-AFcGRJlNaW6elaUMvmDAhc46pPNoMlRV2qRq0fPrTXUNKi4GN8lZfOdwb04QegnkHRCi3lcgvWBdkx1IrTr-CO1AKNbxnrDHaEcIpR3lEp6iZ7XeEkKEorBD-zov_oTzhNOYfLqzc2rah0MJAeeIj3k42TE5bF3yOE245mE5M3byOBcfSpoOfxnSXM-mNS7gmIbxOXoS7VDDi_v7At18-vjj6kt3_e3z16sP153jUs2dsLAHTZiTum8bgPdRKgARHSecch-10-2MVO_3VgO1PQOmmheCoi5QdoHebrnHkn8uoc5mTNWFYbBTyEs1DDQoJqCBlw-C7SkpaAlc_CcqOFMNff0PepuXMrWNDaVCS94L0jcKNsqVXGsJ0RxLGm05tSizNmm2Js0q1yYNb54398m2OjvEYieX6m8jJYxQec6mG1ePaymh_JngofBXmynabOyhtOCb75SAbF-ErlOzX8N7tUI</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>Zhai, Yan</creator><creator>Yang, Qin</creator><creator>Zhu, Rongqi</creator><creator>Gu, Yi</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>2008</creationdate><title>study on imidization degree of polyamic acid in solution and ordering degree of its polyimide film</title><author>Zhai, Yan ; Yang, Qin ; Zhu, Rongqi ; Gu, Yi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-5a1b1903c6986971ddf67115fc40424df9c94dff29bba912a83137c461e72ce23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>acetic anhydride</topic><topic>Ambient temperature</topic><topic>Anhydrides</topic><topic>Applied sciences</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemical modifications</topic><topic>Chemical reactions and properties</topic><topic>Chemistry and Materials Science</topic><topic>Classical Mechanics</topic><topic>Crystallography and Scattering Methods</topic><topic>Dianhydrides</topic><topic>Elongation</topic><topic>Exact sciences and technology</topic><topic>Fourier transform infrared spectroscopy</topic><topic>Materials Science</topic><topic>Order disorder</topic><topic>Organic chemistry</topic><topic>Organic polymers</topic><topic>Phase separation</topic><topic>Physicochemistry of polymers</topic><topic>Polyimide resins</topic><topic>Polymer Sciences</topic><topic>pyridines</topic><topic>separation</topic><topic>Solid Mechanics</topic><topic>Tensile strength</topic><topic>Viscometers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhai, Yan</creatorcontrib><creatorcontrib>Yang, Qin</creatorcontrib><creatorcontrib>Zhu, Rongqi</creatorcontrib><creatorcontrib>Gu, Yi</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhai, Yan</au><au>Yang, Qin</au><au>Zhu, Rongqi</au><au>Gu, Yi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>study on imidization degree of polyamic acid in solution and ordering degree of its polyimide film</atitle><jtitle>Journal of materials science</jtitle><stitle>J Mater Sci</stitle><date>2008</date><risdate>2008</risdate><volume>43</volume><issue>1</issue><spage>338</spage><epage>344</epage><pages>338-344</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><coden>JMTSAS</coden><abstract>Polyamic acid (PAA) based on pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) can be chemically converted to copolyamic acid-imide (PA-I) which is a partially converted PAA at ambient temperature by treatment with a mixture of acetic anhydride and pyridine. A systematic investigation by rotation viscometer and FT-IR revealed that phase separation in PA-I solution occurred when imidization degree was about 26%. Imidization degree of PA-I solution could be controlled by using adequate acetic anhydride amount, initial PAA concentration and imidization time. PA-I solutions with different imidization degree were converted to corresponding polyimide films by thermal imidization. WAXD showed that as imidization degree in PA-I solution increased, the degree of morphologic ordering of final PI film was improved, while tensile strength and modulus increased and ultimate elongation reduced slightly.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10853-007-1697-4</doi><tpages>7</tpages></addata></record> |
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| subjects | acetic anhydride Ambient temperature Anhydrides Applied sciences Characterization and Evaluation of Materials Chemical modifications Chemical reactions and properties Chemistry and Materials Science Classical Mechanics Crystallography and Scattering Methods Dianhydrides Elongation Exact sciences and technology Fourier transform infrared spectroscopy Materials Science Order disorder Organic chemistry Organic polymers Phase separation Physicochemistry of polymers Polyimide resins Polymer Sciences pyridines separation Solid Mechanics Tensile strength Viscometers |
| title | study on imidization degree of polyamic acid in solution and ordering degree of its polyimide film |
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