Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups

Polyether ether ketone and polyether ether ketone copolymers were prepared by the nucleophilic substitution reaction of 4,4′-difluorobenzophenone with hydroquinone and with varying mole proportions of hydroquinone and methyl hydroquinone using sulfolane solvent in the presence of anhydrous K 2CO 3....

Full description

Saved in:
Bibliographic Details
Published in:European polymer journal 2004-11, Vol.40 (11), p.2645-2651
Main Authors: Rao, V.L., Sabeena, P.U., Saxena, Akanksha, Gopalakrishnan, C., Krishnan, K., Ravindran, P.V., Ninan, K.N.
Format: Article
Language:English
Subjects:
Activation energy
Applied sciences
Differential scanning calorimetry
Exact sciences and technology
Organic polymers
PEEK copolymer
Pendant methyl group
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Thermogravimetry
Wide angle X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3
cites cdi_FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3
container_end_page 2651
container_issue 11
container_start_page 2645
container_title European polymer journal
container_volume 40
creator Rao, V.L.
Sabeena, P.U.
Saxena, Akanksha
Gopalakrishnan, C.
Krishnan, K.
Ravindran, P.V.
Ninan, K.N.
description Polyether ether ketone and polyether ether ketone copolymers were prepared by the nucleophilic substitution reaction of 4,4′-difluorobenzophenone with hydroquinone and with varying mole proportions of hydroquinone and methyl hydroquinone using sulfolane solvent in the presence of anhydrous K 2CO 3. The polymers were characterised by different physico-chemical techniques. The crystallinity of the polymers was found to decrease with increase in concentration of the methyl hydroquinone units in the polymer. Thermogravimetric studies showed that all the polymers were stable upto 430 °C with a char yield above 49% at 900 °C in N 2 atmosphere. The glass transition temperature was found to increase and the crystalline melting temperature and activation energy were found to decrease with increase in concentration of the methyl hydroquinone units in the polymer.
doi_str_mv 10.1016/j.eurpolymj.2004.07.002
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_28426285</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0014305704002460</els_id><sourcerecordid>28426285</sourcerecordid><originalsourceid>FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3</originalsourceid><addsrcrecordid>eNqFkE9PGzEUxC3USqSBz4AvVOWwy_OftTfHKGopElIPlLNlO2_BYbPe2ptW-fY4TVSOvbx3-c2MZgi5YlAzYOp2U-MujbHfbzc1B5A16BqAn5EZa7Wo2EI2H8gMgMlKQKPPyaecNwCghRIzYh73w_SCOWRqhzUdUxwxTQEzjR09uH6xad9TLEw63Vec4oA31Me_qZgy_ROmFzrisLbDRLcFK5LnFHdjviAfO9tnvDz9OXn69vXn6nv18OPufrV8qLzQcqrkolVSOeZaUApai8K1rbOCO8k7tE3nhfJKaqc67rgQWjvntRa6AS4WDMWcfD76lga_dpgnsw3ZY9_bAeMuG95KrnjbFFAfQZ9izgk7M6awLSUNA3MY1GzMv0HNYVAD2pRBi_L6FGGzt32X7OBDfpcr3iwUO3DLI4el7--AyWQfcPC4Dgn9ZNYx_DfrDTDOkf0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>28426285</pqid></control><display><type>article</type><title>Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups</title><source>Elsevier</source><creator>Rao, V.L. ; Sabeena, P.U. ; Saxena, Akanksha ; Gopalakrishnan, C. ; Krishnan, K. ; Ravindran, P.V. ; Ninan, K.N.</creator><creatorcontrib>Rao, V.L. ; Sabeena, P.U. ; Saxena, Akanksha ; Gopalakrishnan, C. ; Krishnan, K. ; Ravindran, P.V. ; Ninan, K.N.</creatorcontrib><description>Polyether ether ketone and polyether ether ketone copolymers were prepared by the nucleophilic substitution reaction of 4,4′-difluorobenzophenone with hydroquinone and with varying mole proportions of hydroquinone and methyl hydroquinone using sulfolane solvent in the presence of anhydrous K 2CO 3. The polymers were characterised by different physico-chemical techniques. The crystallinity of the polymers was found to decrease with increase in concentration of the methyl hydroquinone units in the polymer. Thermogravimetric studies showed that all the polymers were stable upto 430 °C with a char yield above 49% at 900 °C in N 2 atmosphere. The glass transition temperature was found to increase and the crystalline melting temperature and activation energy were found to decrease with increase in concentration of the methyl hydroquinone units in the polymer.</description><identifier>ISSN: 0014-3057</identifier><identifier>EISSN: 1873-1945</identifier><identifier>DOI: 10.1016/j.eurpolymj.2004.07.002</identifier><identifier>CODEN: EUPJAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Activation energy ; Applied sciences ; Differential scanning calorimetry ; Exact sciences and technology ; Organic polymers ; PEEK copolymer ; Pendant methyl group ; Physicochemistry of polymers ; Polymers with particular properties ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; Thermogravimetry ; Wide angle X-ray diffraction</subject><ispartof>European polymer journal, 2004-11, Vol.40 (11), p.2645-2651</ispartof><rights>2004</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3</citedby><cites>FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=16259612$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Rao, V.L.</creatorcontrib><creatorcontrib>Sabeena, P.U.</creatorcontrib><creatorcontrib>Saxena, Akanksha</creatorcontrib><creatorcontrib>Gopalakrishnan, C.</creatorcontrib><creatorcontrib>Krishnan, K.</creatorcontrib><creatorcontrib>Ravindran, P.V.</creatorcontrib><creatorcontrib>Ninan, K.N.</creatorcontrib><title>Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups</title><title>European polymer journal</title><description>Polyether ether ketone and polyether ether ketone copolymers were prepared by the nucleophilic substitution reaction of 4,4′-difluorobenzophenone with hydroquinone and with varying mole proportions of hydroquinone and methyl hydroquinone using sulfolane solvent in the presence of anhydrous K 2CO 3. The polymers were characterised by different physico-chemical techniques. The crystallinity of the polymers was found to decrease with increase in concentration of the methyl hydroquinone units in the polymer. Thermogravimetric studies showed that all the polymers were stable upto 430 °C with a char yield above 49% at 900 °C in N 2 atmosphere. The glass transition temperature was found to increase and the crystalline melting temperature and activation energy were found to decrease with increase in concentration of the methyl hydroquinone units in the polymer.</description><subject>Activation energy</subject><subject>Applied sciences</subject><subject>Differential scanning calorimetry</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>PEEK copolymer</subject><subject>Pendant methyl group</subject><subject>Physicochemistry of polymers</subject><subject>Polymers with particular properties</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>Thermogravimetry</subject><subject>Wide angle X-ray diffraction</subject><issn>0014-3057</issn><issn>1873-1945</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkE9PGzEUxC3USqSBz4AvVOWwy_OftTfHKGopElIPlLNlO2_BYbPe2ptW-fY4TVSOvbx3-c2MZgi5YlAzYOp2U-MujbHfbzc1B5A16BqAn5EZa7Wo2EI2H8gMgMlKQKPPyaecNwCghRIzYh73w_SCOWRqhzUdUxwxTQEzjR09uH6xad9TLEw63Vec4oA31Me_qZgy_ROmFzrisLbDRLcFK5LnFHdjviAfO9tnvDz9OXn69vXn6nv18OPufrV8qLzQcqrkolVSOeZaUApai8K1rbOCO8k7tE3nhfJKaqc67rgQWjvntRa6AS4WDMWcfD76lga_dpgnsw3ZY9_bAeMuG95KrnjbFFAfQZ9izgk7M6awLSUNA3MY1GzMv0HNYVAD2pRBi_L6FGGzt32X7OBDfpcr3iwUO3DLI4el7--AyWQfcPC4Dgn9ZNYx_DfrDTDOkf0</recordid><startdate>20041101</startdate><enddate>20041101</enddate><creator>Rao, V.L.</creator><creator>Sabeena, P.U.</creator><creator>Saxena, Akanksha</creator><creator>Gopalakrishnan, C.</creator><creator>Krishnan, K.</creator><creator>Ravindran, P.V.</creator><creator>Ninan, K.N.</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>20041101</creationdate><title>Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups</title><author>Rao, V.L. ; Sabeena, P.U. ; Saxena, Akanksha ; Gopalakrishnan, C. ; Krishnan, K. ; Ravindran, P.V. ; Ninan, K.N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Activation energy</topic><topic>Applied sciences</topic><topic>Differential scanning calorimetry</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>PEEK copolymer</topic><topic>Pendant methyl group</topic><topic>Physicochemistry of polymers</topic><topic>Polymers with particular properties</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>Thermogravimetry</topic><topic>Wide angle X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rao, V.L.</creatorcontrib><creatorcontrib>Sabeena, P.U.</creatorcontrib><creatorcontrib>Saxena, Akanksha</creatorcontrib><creatorcontrib>Gopalakrishnan, C.</creatorcontrib><creatorcontrib>Krishnan, K.</creatorcontrib><creatorcontrib>Ravindran, P.V.</creatorcontrib><creatorcontrib>Ninan, K.N.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>European polymer journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rao, V.L.</au><au>Sabeena, P.U.</au><au>Saxena, Akanksha</au><au>Gopalakrishnan, C.</au><au>Krishnan, K.</au><au>Ravindran, P.V.</au><au>Ninan, K.N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups</atitle><jtitle>European polymer journal</jtitle><date>2004-11-01</date><risdate>2004</risdate><volume>40</volume><issue>11</issue><spage>2645</spage><epage>2651</epage><pages>2645-2651</pages><issn>0014-3057</issn><eissn>1873-1945</eissn><coden>EUPJAG</coden><abstract>Polyether ether ketone and polyether ether ketone copolymers were prepared by the nucleophilic substitution reaction of 4,4′-difluorobenzophenone with hydroquinone and with varying mole proportions of hydroquinone and methyl hydroquinone using sulfolane solvent in the presence of anhydrous K 2CO 3. The polymers were characterised by different physico-chemical techniques. The crystallinity of the polymers was found to decrease with increase in concentration of the methyl hydroquinone units in the polymer. Thermogravimetric studies showed that all the polymers were stable upto 430 °C with a char yield above 49% at 900 °C in N 2 atmosphere. The glass transition temperature was found to increase and the crystalline melting temperature and activation energy were found to decrease with increase in concentration of the methyl hydroquinone units in the polymer.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.eurpolymj.2004.07.002</doi><tpages>7</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0014-3057
ispartof European polymer journal, 2004-11, Vol.40 (11), p.2645-2651
issn 0014-3057
1873-1945
language eng
recordid cdi_proquest_miscellaneous_28426285
source Elsevier
subjects Activation energy
Applied sciences
Differential scanning calorimetry
Exact sciences and technology
Organic polymers
PEEK copolymer
Pendant methyl group
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Thermogravimetry
Wide angle X-ray diffraction
title Synthesis and properties of poly(aryl ether ether ketone) copolymers with pendant methyl groups
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-02T02%3A42%3A20IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Synthesis%20and%20properties%20of%20poly(aryl%20ether%20ether%20ketone)%20copolymers%20with%20pendant%20methyl%20groups&rft.jtitle=European%20polymer%20journal&rft.au=Rao,%20V.L.&rft.date=2004-11-01&rft.volume=40&rft.issue=11&rft.spage=2645&rft.epage=2651&rft.pages=2645-2651&rft.issn=0014-3057&rft.eissn=1873-1945&rft.coden=EUPJAG&rft_id=info:doi/10.1016/j.eurpolymj.2004.07.002&rft_dat=%3Cproquest_cross%3E28426285%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c374t-498646b1b806608ae3b88ba32b42fea5fc36c647b6f2b23377bbc7737502391e3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=28426285&rft_id=info:pmid/&rfr_iscdi=true