Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone)
SummaryThe thermal properties, crystalline structure and shape memory effects of poly(L-lactide) (PLLA) and its copolymer with poly(ε-caprolactone) (PCL) are systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and tensile tests. The influences of compositi...
Gespeichert in:
| Veröffentlicht in: | Polymer bulletin (Berlin, Germany) Germany), 2007-02, Vol.58 (2), p.381-391 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 391 |
|---|---|
| container_issue | 2 |
| container_start_page | 381 |
| container_title | Polymer bulletin (Berlin, Germany) |
| container_volume | 58 |
| creator | Lu, Xi Li Cai, Wei Gao, Zhiyong Tang, Wen Jun |
| description | SummaryThe thermal properties, crystalline structure and shape memory effects of poly(L-lactide) (PLLA) and its copolymer with poly(ε-caprolactone) (PCL) are systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and tensile tests. The influences of composition and intrinsic viscosity on structure and shape memory effects are also revealed. It is found that the PLLA homopolymer and poly(L-lactide-co-ε-caprolactone) (PCLA) copolymers exhibit good shape memory effects. The existence of PLLA crystal and amorphous phase play very important roles for shape memory effects. The intrinsic viscosity obviously affects the crystallinity of polymers and further affects the shape memory effects. The shape recovery rate decreases with increasing deformation strain, which is relate to the deformation of PLLA crystal. The recovery stress increase with the increase of the ε-CL content and maximum recovery stress is 3.54MPa obtained in the PCLA804 (20wt% ε-CL content, Mw=304,400). With the increase of cyclic testing number, the shape recovery rates decrease and the shape retention rates increase at the beginning and then approach to a steady value. |
| doi_str_mv | 10.1007/s00289-006-0680-6 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2917987082</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2917987082</sourcerecordid><originalsourceid>FETCH-LOGICAL-c303t-2f7d59872b53272f90bfdd2f5354c6306b39757b37758dae4d0d43428909bc083</originalsourceid><addsrcrecordid>eNpFUMtKAzEUDaJgrX6AuwER7CJ6J8kkk6UUX1BwYV2HTB50SudhMkX6Yf6G32SGKbi6XO553HMQus7hPgcQDxGAlBIDcAy8BMxP0CxnlGPCmDxFM8gFYCipPEcXMW4h7ZznM7T-2OjeZY1runDInPfODDHrfNZ3u8PdCu-0GWrrFplubVank-nGS-NC9l0Pmwn2-4ON7kM3grvWLS7Rmde76K6Oc44-n5_Wy1e8en95Wz6usKFAB0y8sIUsBakKSgTxEipvLfEFLZjhFHhFpShERYUoSqsds2AZZSknyMqkMHN0M-km76-9i4PadvvQJktFZC6SNJQkofIJZUIXY3Be9aFudDioHNRYnprKU6k8NZaneOLcHpV1NHrng25NHf-JJUtPloz-AdLkbjI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2917987082</pqid></control><display><type>article</type><title>Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone)</title><source>ProQuest Central UK/Ireland</source><source>SpringerLink Journals - AutoHoldings</source><source>ProQuest Central</source><creator>Lu, Xi Li ; Cai, Wei ; Gao, Zhiyong ; Tang, Wen Jun</creator><creatorcontrib>Lu, Xi Li ; Cai, Wei ; Gao, Zhiyong ; Tang, Wen Jun</creatorcontrib><description>SummaryThe thermal properties, crystalline structure and shape memory effects of poly(L-lactide) (PLLA) and its copolymer with poly(ε-caprolactone) (PCL) are systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and tensile tests. The influences of composition and intrinsic viscosity on structure and shape memory effects are also revealed. It is found that the PLLA homopolymer and poly(L-lactide-co-ε-caprolactone) (PCLA) copolymers exhibit good shape memory effects. The existence of PLLA crystal and amorphous phase play very important roles for shape memory effects. The intrinsic viscosity obviously affects the crystallinity of polymers and further affects the shape memory effects. The shape recovery rate decreases with increasing deformation strain, which is relate to the deformation of PLLA crystal. The recovery stress increase with the increase of the ε-CL content and maximum recovery stress is 3.54MPa obtained in the PCLA804 (20wt% ε-CL content, Mw=304,400). With the increase of cyclic testing number, the shape recovery rates decrease and the shape retention rates increase at the beginning and then approach to a steady value.</description><identifier>ISSN: 0170-0839</identifier><identifier>EISSN: 1436-2449</identifier><identifier>DOI: 10.1007/s00289-006-0680-6</identifier><identifier>CODEN: POBUDR</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Applied sciences ; Copolymers ; Deformation effects ; Exact sciences and technology ; Mechanical properties ; Organic polymers ; Physicochemistry of polymers ; Polycaprolactone ; Properties and characterization ; Recovery ; Shape effects ; Shape memory ; Tensile tests ; Thermodynamic properties ; Viscosity</subject><ispartof>Polymer bulletin (Berlin, Germany), 2007-02, Vol.58 (2), p.381-391</ispartof><rights>2007 INIST-CNRS</rights><rights>Springer-Verlag 2006.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c303t-2f7d59872b53272f90bfdd2f5354c6306b39757b37758dae4d0d43428909bc083</citedby><cites>FETCH-LOGICAL-c303t-2f7d59872b53272f90bfdd2f5354c6306b39757b37758dae4d0d43428909bc083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2917987082?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,21388,27924,27925,33744,43805,64385,64389,72469</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18453584$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lu, Xi Li</creatorcontrib><creatorcontrib>Cai, Wei</creatorcontrib><creatorcontrib>Gao, Zhiyong</creatorcontrib><creatorcontrib>Tang, Wen Jun</creatorcontrib><title>Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone)</title><title>Polymer bulletin (Berlin, Germany)</title><description>SummaryThe thermal properties, crystalline structure and shape memory effects of poly(L-lactide) (PLLA) and its copolymer with poly(ε-caprolactone) (PCL) are systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and tensile tests. The influences of composition and intrinsic viscosity on structure and shape memory effects are also revealed. It is found that the PLLA homopolymer and poly(L-lactide-co-ε-caprolactone) (PCLA) copolymers exhibit good shape memory effects. The existence of PLLA crystal and amorphous phase play very important roles for shape memory effects. The intrinsic viscosity obviously affects the crystallinity of polymers and further affects the shape memory effects. The shape recovery rate decreases with increasing deformation strain, which is relate to the deformation of PLLA crystal. The recovery stress increase with the increase of the ε-CL content and maximum recovery stress is 3.54MPa obtained in the PCLA804 (20wt% ε-CL content, Mw=304,400). With the increase of cyclic testing number, the shape recovery rates decrease and the shape retention rates increase at the beginning and then approach to a steady value.</description><subject>Applied sciences</subject><subject>Copolymers</subject><subject>Deformation effects</subject><subject>Exact sciences and technology</subject><subject>Mechanical properties</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polycaprolactone</subject><subject>Properties and characterization</subject><subject>Recovery</subject><subject>Shape effects</subject><subject>Shape memory</subject><subject>Tensile tests</subject><subject>Thermodynamic properties</subject><subject>Viscosity</subject><issn>0170-0839</issn><issn>1436-2449</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpFUMtKAzEUDaJgrX6AuwER7CJ6J8kkk6UUX1BwYV2HTB50SudhMkX6Yf6G32SGKbi6XO553HMQus7hPgcQDxGAlBIDcAy8BMxP0CxnlGPCmDxFM8gFYCipPEcXMW4h7ZznM7T-2OjeZY1runDInPfODDHrfNZ3u8PdCu-0GWrrFplubVank-nGS-NC9l0Pmwn2-4ON7kM3grvWLS7Rmde76K6Oc44-n5_Wy1e8en95Wz6usKFAB0y8sIUsBakKSgTxEipvLfEFLZjhFHhFpShERYUoSqsds2AZZSknyMqkMHN0M-km76-9i4PadvvQJktFZC6SNJQkofIJZUIXY3Be9aFudDioHNRYnprKU6k8NZaneOLcHpV1NHrng25NHf-JJUtPloz-AdLkbjI</recordid><startdate>20070201</startdate><enddate>20070201</enddate><creator>Lu, Xi Li</creator><creator>Cai, Wei</creator><creator>Gao, Zhiyong</creator><creator>Tang, Wen Jun</creator><general>Springer</general><general>Springer Nature B.V</general><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>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20070201</creationdate><title>Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone)</title><author>Lu, Xi Li ; Cai, Wei ; Gao, Zhiyong ; Tang, Wen Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-2f7d59872b53272f90bfdd2f5354c6306b39757b37758dae4d0d43428909bc083</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Copolymers</topic><topic>Deformation effects</topic><topic>Exact sciences and technology</topic><topic>Mechanical properties</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polycaprolactone</topic><topic>Properties and characterization</topic><topic>Recovery</topic><topic>Shape effects</topic><topic>Shape memory</topic><topic>Tensile tests</topic><topic>Thermodynamic properties</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, Xi Li</creatorcontrib><creatorcontrib>Cai, Wei</creatorcontrib><creatorcontrib>Gao, Zhiyong</creatorcontrib><creatorcontrib>Tang, Wen Jun</creatorcontrib><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>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><jtitle>Polymer bulletin (Berlin, Germany)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, Xi Li</au><au>Cai, Wei</au><au>Gao, Zhiyong</au><au>Tang, Wen Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone)</atitle><jtitle>Polymer bulletin (Berlin, Germany)</jtitle><date>2007-02-01</date><risdate>2007</risdate><volume>58</volume><issue>2</issue><spage>381</spage><epage>391</epage><pages>381-391</pages><issn>0170-0839</issn><eissn>1436-2449</eissn><coden>POBUDR</coden><abstract>SummaryThe thermal properties, crystalline structure and shape memory effects of poly(L-lactide) (PLLA) and its copolymer with poly(ε-caprolactone) (PCL) are systematically investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and tensile tests. The influences of composition and intrinsic viscosity on structure and shape memory effects are also revealed. It is found that the PLLA homopolymer and poly(L-lactide-co-ε-caprolactone) (PCLA) copolymers exhibit good shape memory effects. The existence of PLLA crystal and amorphous phase play very important roles for shape memory effects. The intrinsic viscosity obviously affects the crystallinity of polymers and further affects the shape memory effects. The shape recovery rate decreases with increasing deformation strain, which is relate to the deformation of PLLA crystal. The recovery stress increase with the increase of the ε-CL content and maximum recovery stress is 3.54MPa obtained in the PCLA804 (20wt% ε-CL content, Mw=304,400). With the increase of cyclic testing number, the shape recovery rates decrease and the shape retention rates increase at the beginning and then approach to a steady value.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><cop>New York, NY</cop><pub>Springer</pub><doi>10.1007/s00289-006-0680-6</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0170-0839 |
| ispartof | Polymer bulletin (Berlin, Germany), 2007-02, Vol.58 (2), p.381-391 |
| issn | 0170-0839 1436-2449 |
| language | eng |
| recordid | cdi_proquest_journals_2917987082 |
| source | ProQuest Central UK/Ireland; SpringerLink Journals - AutoHoldings; ProQuest Central |
| subjects | Applied sciences Copolymers Deformation effects Exact sciences and technology Mechanical properties Organic polymers Physicochemistry of polymers Polycaprolactone Properties and characterization Recovery Shape effects Shape memory Tensile tests Thermodynamic properties Viscosity |
| title | Shape memory effects of poly(L-lactide) and its copolymer with poly(ε-caprolactone) |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T08%3A05%3A25IST&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=Shape%20memory%20effects%20of%20poly(L-lactide)%20and%20its%20copolymer%20with%20poly(%CE%B5-caprolactone)&rft.jtitle=Polymer%20bulletin%20(Berlin,%20Germany)&rft.au=Lu,%20Xi%20Li&rft.date=2007-02-01&rft.volume=58&rft.issue=2&rft.spage=381&rft.epage=391&rft.pages=381-391&rft.issn=0170-0839&rft.eissn=1436-2449&rft.coden=POBUDR&rft_id=info:doi/10.1007/s00289-006-0680-6&rft_dat=%3Cproquest_cross%3E2917987082%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=2917987082&rft_id=info:pmid/&rfr_iscdi=true |