Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm

Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm

The photo-degradation of unstabilised poly(epichlorohydrin- co-ethylene oxide) was evaluated under accelerated ageing conditions by infrared spectrophotometry (FTIR), gel permeation chromatography (GPC) and scanning electron microscopy (SEM). The elastomer photo-degradation leads to the formation an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Polymer degradation and stability 2002-01, Vol.76 (2), p.219-225
Hauptverfasser: Soto-Oviedo, Mauro A., De Paoli, Marco-A.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Crosslinking and degradation
Elastomer
Exact sciences and technology
Photo-oxidative degradation
Physicochemistry of polymers
Poly(epichlorohydrin- co-ethylene oxide)
Polymers and radiations
UV irradiation
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 225
container_issue 2
container_start_page 219
container_title Polymer degradation and stability
container_volume 76
creator Soto-Oviedo, Mauro A.
De Paoli, Marco-A.
description The photo-degradation of unstabilised poly(epichlorohydrin- co-ethylene oxide) was evaluated under accelerated ageing conditions by infrared spectrophotometry (FTIR), gel permeation chromatography (GPC) and scanning electron microscopy (SEM). The elastomer photo-degradation leads to the formation and increase of carbonyl containing products, hydroxyl and hydroperoxide groups. FTIR spectra after elastomer photo-degradation and derivatization in an inert atmosphere, indicate that hydroperoxides are the first products of the photo-oxidation and their photolysis produces carbonyl-containing products. These are subsequently photolyzed to produce carboxylic acids, alcohols, esters and others minor products. The study of the average molar mass by GPC shows that it decreases exponentially during the first 2 h of irradiation, with evidence for random chain scission. The SEM study shows that photo-degradation leads to the formation of micro-cracks on the polymer surface.
doi_str_mv 10.1016/S0141-3910(02)00017-4
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_27602437</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0141391002000174</els_id><sourcerecordid>27602437</sourcerecordid><originalsourceid>FETCH-LOGICAL-c368t-d069e28341129ef58a3f593ca71434bf53ed23708a5027366a3cc90b22faf2123</originalsourceid><addsrcrecordid>eNqFkMtKAzEUhoMoWKuPIGSj2EX05DK3lUjxBoKCunIRYubERqaTmkyLfXtnrOjS1TmL7z-Xj5BDDqcceH72CFxxJisOJyAmAMALprbIiJeFZEIKvk1Gv8gu2UvpvYdAZXxEXh5moQssfPradH6FtMa3aIY-tDQ4ugjN-gQX3s6aEMNsXUffMmoDw262brBFOkRxQrExqQtzjNR0VGSKtvN9suNMk_Dgp47J89Xl0_SG3d1f304v7piVedmxGvIKRSkV56JCl5VGuqyS1hRcSfXqMom1kAWUJgNRyDw30toKXoVwxgku5Jgcb-YuYvhYYur03CeLTWNaDMukRZGDULLowWwD2hhSiuj0Ivq5iWvNQQ8q9bdKPXjSIPS3Sq363NHPApOsaVw0rfXpL9zfJCTInjvfcNh_u_IYdbIeW4u1j2g7XQf_z6YvpLSHBQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>27602437</pqid></control><display><type>article</type><title>Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm</title><source>Elsevier ScienceDirect Journals Complete - AutoHoldings</source><creator>Soto-Oviedo, Mauro A. ; De Paoli, Marco-A.</creator><creatorcontrib>Soto-Oviedo, Mauro A. ; De Paoli, Marco-A.</creatorcontrib><description>The photo-degradation of unstabilised poly(epichlorohydrin- co-ethylene oxide) was evaluated under accelerated ageing conditions by infrared spectrophotometry (FTIR), gel permeation chromatography (GPC) and scanning electron microscopy (SEM). The elastomer photo-degradation leads to the formation and increase of carbonyl containing products, hydroxyl and hydroperoxide groups. FTIR spectra after elastomer photo-degradation and derivatization in an inert atmosphere, indicate that hydroperoxides are the first products of the photo-oxidation and their photolysis produces carbonyl-containing products. These are subsequently photolyzed to produce carboxylic acids, alcohols, esters and others minor products. The study of the average molar mass by GPC shows that it decreases exponentially during the first 2 h of irradiation, with evidence for random chain scission. The SEM study shows that photo-degradation leads to the formation of micro-cracks on the polymer surface.</description><identifier>ISSN: 0141-3910</identifier><identifier>EISSN: 1873-2321</identifier><identifier>DOI: 10.1016/S0141-3910(02)00017-4</identifier><identifier>CODEN: PDSTDW</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Crosslinking and degradation ; Elastomer ; Exact sciences and technology ; Photo-oxidative degradation ; Physicochemistry of polymers ; Poly(epichlorohydrin- co-ethylene oxide) ; Polymers and radiations ; UV irradiation</subject><ispartof>Polymer degradation and stability, 2002-01, Vol.76 (2), p.219-225</ispartof><rights>2002 Elsevier Science Ltd</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-d069e28341129ef58a3f593ca71434bf53ed23708a5027366a3cc90b22faf2123</citedby><cites>FETCH-LOGICAL-c368t-d069e28341129ef58a3f593ca71434bf53ed23708a5027366a3cc90b22faf2123</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0141-3910(02)00017-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=13662303$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Soto-Oviedo, Mauro A.</creatorcontrib><creatorcontrib>De Paoli, Marco-A.</creatorcontrib><title>Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm</title><title>Polymer degradation and stability</title><description>The photo-degradation of unstabilised poly(epichlorohydrin- co-ethylene oxide) was evaluated under accelerated ageing conditions by infrared spectrophotometry (FTIR), gel permeation chromatography (GPC) and scanning electron microscopy (SEM). The elastomer photo-degradation leads to the formation and increase of carbonyl containing products, hydroxyl and hydroperoxide groups. FTIR spectra after elastomer photo-degradation and derivatization in an inert atmosphere, indicate that hydroperoxides are the first products of the photo-oxidation and their photolysis produces carbonyl-containing products. These are subsequently photolyzed to produce carboxylic acids, alcohols, esters and others minor products. The study of the average molar mass by GPC shows that it decreases exponentially during the first 2 h of irradiation, with evidence for random chain scission. The SEM study shows that photo-degradation leads to the formation of micro-cracks on the polymer surface.</description><subject>Applied sciences</subject><subject>Crosslinking and degradation</subject><subject>Elastomer</subject><subject>Exact sciences and technology</subject><subject>Photo-oxidative degradation</subject><subject>Physicochemistry of polymers</subject><subject>Poly(epichlorohydrin- co-ethylene oxide)</subject><subject>Polymers and radiations</subject><subject>UV irradiation</subject><issn>0141-3910</issn><issn>1873-2321</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKAzEUhoMoWKuPIGSj2EX05DK3lUjxBoKCunIRYubERqaTmkyLfXtnrOjS1TmL7z-Xj5BDDqcceH72CFxxJisOJyAmAMALprbIiJeFZEIKvk1Gv8gu2UvpvYdAZXxEXh5moQssfPradH6FtMa3aIY-tDQ4ugjN-gQX3s6aEMNsXUffMmoDw262brBFOkRxQrExqQtzjNR0VGSKtvN9suNMk_Dgp47J89Xl0_SG3d1f304v7piVedmxGvIKRSkV56JCl5VGuqyS1hRcSfXqMom1kAWUJgNRyDw30toKXoVwxgku5Jgcb-YuYvhYYur03CeLTWNaDMukRZGDULLowWwD2hhSiuj0Ivq5iWvNQQ8q9bdKPXjSIPS3Sq363NHPApOsaVw0rfXpL9zfJCTInjvfcNh_u_IYdbIeW4u1j2g7XQf_z6YvpLSHBQ</recordid><startdate>20020101</startdate><enddate>20020101</enddate><creator>Soto-Oviedo, Mauro A.</creator><creator>De Paoli, Marco-A.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20020101</creationdate><title>Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm</title><author>Soto-Oviedo, Mauro A. ; De Paoli, Marco-A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-d069e28341129ef58a3f593ca71434bf53ed23708a5027366a3cc90b22faf2123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>Crosslinking and degradation</topic><topic>Elastomer</topic><topic>Exact sciences and technology</topic><topic>Photo-oxidative degradation</topic><topic>Physicochemistry of polymers</topic><topic>Poly(epichlorohydrin- co-ethylene oxide)</topic><topic>Polymers and radiations</topic><topic>UV irradiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soto-Oviedo, Mauro A.</creatorcontrib><creatorcontrib>De Paoli, Marco-A.</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 degradation and stability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Soto-Oviedo, Mauro A.</au><au>De Paoli, Marco-A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm</atitle><jtitle>Polymer degradation and stability</jtitle><date>2002-01-01</date><risdate>2002</risdate><volume>76</volume><issue>2</issue><spage>219</spage><epage>225</epage><pages>219-225</pages><issn>0141-3910</issn><eissn>1873-2321</eissn><coden>PDSTDW</coden><abstract>The photo-degradation of unstabilised poly(epichlorohydrin- co-ethylene oxide) was evaluated under accelerated ageing conditions by infrared spectrophotometry (FTIR), gel permeation chromatography (GPC) and scanning electron microscopy (SEM). The elastomer photo-degradation leads to the formation and increase of carbonyl containing products, hydroxyl and hydroperoxide groups. FTIR spectra after elastomer photo-degradation and derivatization in an inert atmosphere, indicate that hydroperoxides are the first products of the photo-oxidation and their photolysis produces carbonyl-containing products. These are subsequently photolyzed to produce carboxylic acids, alcohols, esters and others minor products. The study of the average molar mass by GPC shows that it decreases exponentially during the first 2 h of irradiation, with evidence for random chain scission. The SEM study shows that photo-degradation leads to the formation of micro-cracks on the polymer surface.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0141-3910(02)00017-4</doi><tpages>7</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0141-3910
ispartof Polymer degradation and stability, 2002-01, Vol.76 (2), p.219-225
issn 0141-3910
1873-2321
language eng
recordid cdi_proquest_miscellaneous_27602437
source Elsevier ScienceDirect Journals Complete - AutoHoldings
subjects Applied sciences
Crosslinking and degradation
Elastomer
Exact sciences and technology
Photo-oxidative degradation
Physicochemistry of polymers
Poly(epichlorohydrin- co-ethylene oxide)
Polymers and radiations
UV irradiation
title Photo-oxidative degradation of poly(epichlorohydrin- co-ethylene oxide) elastomer at 254 nm
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-16T05%3A07%3A42IST&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=Photo-oxidative%20degradation%20of%20poly(epichlorohydrin-%20co-ethylene%20oxide)%20elastomer%20at%20254%20nm&rft.jtitle=Polymer%20degradation%20and%20stability&rft.au=Soto-Oviedo,%20Mauro%20A.&rft.date=2002-01-01&rft.volume=76&rft.issue=2&rft.spage=219&rft.epage=225&rft.pages=219-225&rft.issn=0141-3910&rft.eissn=1873-2321&rft.coden=PDSTDW&rft_id=info:doi/10.1016/S0141-3910(02)00017-4&rft_dat=%3Cproquest_cross%3E27602437%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=27602437&rft_id=info:pmid/&rft_els_id=S0141391002000174&rfr_iscdi=true