Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt
Stereocomplex (SC) crystallization, homocrystallization, and polymorphism of poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% are investigated for melt‐crystallization. P(LLA‐LAL)...
Gespeichert in:
| Veröffentlicht in: | Polymer crystallization 2020-04, Vol.3 (2), p.n/a |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | n/a |
|---|---|
| container_issue | 2 |
| container_start_page | |
| container_title | Polymer crystallization |
| container_volume | 3 |
| creator | Tsuji, Hideto Sato, Shotaro Masaki, Noriaki Arakawa, Yuki Yoshizaki, Yuta Kuzuya, Akinori Ohya, Yuichi |
| description | Stereocomplex (SC) crystallization, homocrystallization, and polymorphism of poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% are investigated for melt‐crystallization. P(LLA‐LAL)/P(DLA‐DAL) blends crystallize for wide alanine unit content ranges compared to unblended P(LLA‐LAL) and P(DLA‐DAL) samples, due to facile SC crystallization compared to homocrystallization. The phase diagrams of the unblended samples [α‐ and δ‐form homocrystallites] and the blend samples (SC and homocrystallites) are drawn. The transition crystallization temperature of unblended samples from α‐form to δ‐form decreases with an increase in alanine unit content. In the unblended and blend samples, alanine units are correspondingly incorporated in α‐form homocrystalline regions and excluded from SC crystalline regions. The maximum radial growth rate values of spherulites are higher for the blend samples than for the unblended samples. The experimental crystallization half time [tc(1/2)(exp)] values of the unblended samples increase with an increase in alanine unit content, whereas the tc(1/2)(exp) values of the blend samples with alanine unit contents of 3 and 4 mol% and 6 and 6 mol% and of 12 and 13 mol% are respectively higher than and similar to those of poly(l‐lactic acid)/poly(d‐lactic acid) blend.
Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% were investigated for melt‐crystallization by wide‐angle X‐ray diffractometry and polarized optical microscopy. The effects of incorporated alanine units and crystallization temperature on the crystalline species, crystallinity, crystallization rate, crystalline growth geometries, and kinetics are discussed in detail. |
| doi_str_mv | 10.1002/pcr2.10094 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2392024974</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2392024974</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3744-26a1bfcef78551fd7d98f5f31db9ab3561433e88fd0c3d6b9376363778a563ea3</originalsourceid><addsrcrecordid>eNp9kMtKxDAUhoMoOIyz8QkCblSs5tI27VIGbzCgeFmXNE2YDElTkw5aVz6CKx_QJ7GduhAEN-cczv-dCz8A-xidYoTIWSM8Gao83gITkjAasRTn27_qXTALYYUQwllKSc4m4POhlV464Wxj5CsUvgstN0a_8Va7-gQunXV_mryuYONMZ51vljpY6BSUNa971UqvBRRukGXod3OrKxk2-KHhou1VLnT19f4hXB-44bWu5VGAyjsL26WEVpp2D-woboKc_eQpeLq8eJxfR4vbq5v5-SISlMVxRFKOSyWkYlmSYFWxKs9UoiiuypyXNElxTKnMMlUhQau0zClLaUoZy3iSUsnpFByMexvvntf9w8XKrX3dnywIzQkicc7injoeKeFdCF6qovHact8VGBWD9cVgfbGxvofxCL9oI7t_yOJufk_GmW97xIwq</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2392024974</pqid></control><display><type>article</type><title>Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt</title><source>Wiley Online Library Journals Frontfile Complete</source><creator>Tsuji, Hideto ; Sato, Shotaro ; Masaki, Noriaki ; Arakawa, Yuki ; Yoshizaki, Yuta ; Kuzuya, Akinori ; Ohya, Yuichi</creator><creatorcontrib>Tsuji, Hideto ; Sato, Shotaro ; Masaki, Noriaki ; Arakawa, Yuki ; Yoshizaki, Yuta ; Kuzuya, Akinori ; Ohya, Yuichi</creatorcontrib><description>Stereocomplex (SC) crystallization, homocrystallization, and polymorphism of poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% are investigated for melt‐crystallization. P(LLA‐LAL)/P(DLA‐DAL) blends crystallize for wide alanine unit content ranges compared to unblended P(LLA‐LAL) and P(DLA‐DAL) samples, due to facile SC crystallization compared to homocrystallization. The phase diagrams of the unblended samples [α‐ and δ‐form homocrystallites] and the blend samples (SC and homocrystallites) are drawn. The transition crystallization temperature of unblended samples from α‐form to δ‐form decreases with an increase in alanine unit content. In the unblended and blend samples, alanine units are correspondingly incorporated in α‐form homocrystalline regions and excluded from SC crystalline regions. The maximum radial growth rate values of spherulites are higher for the blend samples than for the unblended samples. The experimental crystallization half time [tc(1/2)(exp)] values of the unblended samples increase with an increase in alanine unit content, whereas the tc(1/2)(exp) values of the blend samples with alanine unit contents of 3 and 4 mol% and 6 and 6 mol% and of 12 and 13 mol% are respectively higher than and similar to those of poly(l‐lactic acid)/poly(d‐lactic acid) blend.
Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% were investigated for melt‐crystallization by wide‐angle X‐ray diffractometry and polarized optical microscopy. The effects of incorporated alanine units and crystallization temperature on the crystalline species, crystallinity, crystallization rate, crystalline growth geometries, and kinetics are discussed in detail.</description><identifier>ISSN: 2573-7619</identifier><identifier>EISSN: 2573-7619</identifier><identifier>DOI: 10.1002/pcr2.10094</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Acids ; Alanine ; copolyesteramide ; copolymers ; Crystallization ; Lactic acid ; Phase diagrams ; poly(lactic acid) ; polyalanine ; polylactide ; Polymorphism ; Spherulites ; stereocomplex</subject><ispartof>Polymer crystallization, 2020-04, Vol.3 (2), p.n/a</ispartof><rights>2019 Wiley Periodicals, Inc.</rights><rights>2020 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3744-26a1bfcef78551fd7d98f5f31db9ab3561433e88fd0c3d6b9376363778a563ea3</citedby><cites>FETCH-LOGICAL-c3744-26a1bfcef78551fd7d98f5f31db9ab3561433e88fd0c3d6b9376363778a563ea3</cites><orcidid>0000-0002-8862-850X ; 0000-0002-8944-602X ; 0000-0003-0003-2996 ; 0000-0001-9986-5933</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpcr2.10094$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpcr2.10094$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,27907,27908,45557,45558</link.rule.ids></links><search><creatorcontrib>Tsuji, Hideto</creatorcontrib><creatorcontrib>Sato, Shotaro</creatorcontrib><creatorcontrib>Masaki, Noriaki</creatorcontrib><creatorcontrib>Arakawa, Yuki</creatorcontrib><creatorcontrib>Yoshizaki, Yuta</creatorcontrib><creatorcontrib>Kuzuya, Akinori</creatorcontrib><creatorcontrib>Ohya, Yuichi</creatorcontrib><title>Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt</title><title>Polymer crystallization</title><description>Stereocomplex (SC) crystallization, homocrystallization, and polymorphism of poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% are investigated for melt‐crystallization. P(LLA‐LAL)/P(DLA‐DAL) blends crystallize for wide alanine unit content ranges compared to unblended P(LLA‐LAL) and P(DLA‐DAL) samples, due to facile SC crystallization compared to homocrystallization. The phase diagrams of the unblended samples [α‐ and δ‐form homocrystallites] and the blend samples (SC and homocrystallites) are drawn. The transition crystallization temperature of unblended samples from α‐form to δ‐form decreases with an increase in alanine unit content. In the unblended and blend samples, alanine units are correspondingly incorporated in α‐form homocrystalline regions and excluded from SC crystalline regions. The maximum radial growth rate values of spherulites are higher for the blend samples than for the unblended samples. The experimental crystallization half time [tc(1/2)(exp)] values of the unblended samples increase with an increase in alanine unit content, whereas the tc(1/2)(exp) values of the blend samples with alanine unit contents of 3 and 4 mol% and 6 and 6 mol% and of 12 and 13 mol% are respectively higher than and similar to those of poly(l‐lactic acid)/poly(d‐lactic acid) blend.
Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% were investigated for melt‐crystallization by wide‐angle X‐ray diffractometry and polarized optical microscopy. The effects of incorporated alanine units and crystallization temperature on the crystalline species, crystallinity, crystallization rate, crystalline growth geometries, and kinetics are discussed in detail.</description><subject>Acids</subject><subject>Alanine</subject><subject>copolyesteramide</subject><subject>copolymers</subject><subject>Crystallization</subject><subject>Lactic acid</subject><subject>Phase diagrams</subject><subject>poly(lactic acid)</subject><subject>polyalanine</subject><subject>polylactide</subject><subject>Polymorphism</subject><subject>Spherulites</subject><subject>stereocomplex</subject><issn>2573-7619</issn><issn>2573-7619</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxDAUhoMoOIyz8QkCblSs5tI27VIGbzCgeFmXNE2YDElTkw5aVz6CKx_QJ7GduhAEN-cczv-dCz8A-xidYoTIWSM8Gao83gITkjAasRTn27_qXTALYYUQwllKSc4m4POhlV464Wxj5CsUvgstN0a_8Va7-gQunXV_mryuYONMZ51vljpY6BSUNa971UqvBRRukGXod3OrKxk2-KHhou1VLnT19f4hXB-44bWu5VGAyjsL26WEVpp2D-woboKc_eQpeLq8eJxfR4vbq5v5-SISlMVxRFKOSyWkYlmSYFWxKs9UoiiuypyXNElxTKnMMlUhQau0zClLaUoZy3iSUsnpFByMexvvntf9w8XKrX3dnywIzQkicc7injoeKeFdCF6qovHact8VGBWD9cVgfbGxvofxCL9oI7t_yOJufk_GmW97xIwq</recordid><startdate>202004</startdate><enddate>202004</enddate><creator>Tsuji, Hideto</creator><creator>Sato, Shotaro</creator><creator>Masaki, Noriaki</creator><creator>Arakawa, Yuki</creator><creator>Yoshizaki, Yuta</creator><creator>Kuzuya, Akinori</creator><creator>Ohya, Yuichi</creator><general>John Wiley & Sons, Inc</general><general>Hindawi Limited</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-8862-850X</orcidid><orcidid>https://orcid.org/0000-0002-8944-602X</orcidid><orcidid>https://orcid.org/0000-0003-0003-2996</orcidid><orcidid>https://orcid.org/0000-0001-9986-5933</orcidid></search><sort><creationdate>202004</creationdate><title>Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt</title><author>Tsuji, Hideto ; Sato, Shotaro ; Masaki, Noriaki ; Arakawa, Yuki ; Yoshizaki, Yuta ; Kuzuya, Akinori ; Ohya, Yuichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3744-26a1bfcef78551fd7d98f5f31db9ab3561433e88fd0c3d6b9376363778a563ea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Acids</topic><topic>Alanine</topic><topic>copolyesteramide</topic><topic>copolymers</topic><topic>Crystallization</topic><topic>Lactic acid</topic><topic>Phase diagrams</topic><topic>poly(lactic acid)</topic><topic>polyalanine</topic><topic>polylactide</topic><topic>Polymorphism</topic><topic>Spherulites</topic><topic>stereocomplex</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsuji, Hideto</creatorcontrib><creatorcontrib>Sato, Shotaro</creatorcontrib><creatorcontrib>Masaki, Noriaki</creatorcontrib><creatorcontrib>Arakawa, Yuki</creatorcontrib><creatorcontrib>Yoshizaki, Yuta</creatorcontrib><creatorcontrib>Kuzuya, Akinori</creatorcontrib><creatorcontrib>Ohya, Yuichi</creatorcontrib><collection>CrossRef</collection><jtitle>Polymer crystallization</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsuji, Hideto</au><au>Sato, Shotaro</au><au>Masaki, Noriaki</au><au>Arakawa, Yuki</au><au>Yoshizaki, Yuta</au><au>Kuzuya, Akinori</au><au>Ohya, Yuichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt</atitle><jtitle>Polymer crystallization</jtitle><date>2020-04</date><risdate>2020</risdate><volume>3</volume><issue>2</issue><epage>n/a</epage><issn>2573-7619</issn><eissn>2573-7619</eissn><abstract>Stereocomplex (SC) crystallization, homocrystallization, and polymorphism of poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% are investigated for melt‐crystallization. P(LLA‐LAL)/P(DLA‐DAL) blends crystallize for wide alanine unit content ranges compared to unblended P(LLA‐LAL) and P(DLA‐DAL) samples, due to facile SC crystallization compared to homocrystallization. The phase diagrams of the unblended samples [α‐ and δ‐form homocrystallites] and the blend samples (SC and homocrystallites) are drawn. The transition crystallization temperature of unblended samples from α‐form to δ‐form decreases with an increase in alanine unit content. In the unblended and blend samples, alanine units are correspondingly incorporated in α‐form homocrystalline regions and excluded from SC crystalline regions. The maximum radial growth rate values of spherulites are higher for the blend samples than for the unblended samples. The experimental crystallization half time [tc(1/2)(exp)] values of the unblended samples increase with an increase in alanine unit content, whereas the tc(1/2)(exp) values of the blend samples with alanine unit contents of 3 and 4 mol% and 6 and 6 mol% and of 12 and 13 mol% are respectively higher than and similar to those of poly(l‐lactic acid)/poly(d‐lactic acid) blend.
Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(l‐lactic acid‐co‐l‐alanine) [P(LLA‐LAL)] and poly(d‐lactic acid‐co‐d‐alanine) [P(DLA‐DAL)] copolymers with wide alanine unit content ranges from 0 to 21 and 22 mol% were investigated for melt‐crystallization by wide‐angle X‐ray diffractometry and polarized optical microscopy. The effects of incorporated alanine units and crystallization temperature on the crystalline species, crystallinity, crystallization rate, crystalline growth geometries, and kinetics are discussed in detail.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/pcr2.10094</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-8862-850X</orcidid><orcidid>https://orcid.org/0000-0002-8944-602X</orcidid><orcidid>https://orcid.org/0000-0003-0003-2996</orcidid><orcidid>https://orcid.org/0000-0001-9986-5933</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2573-7619 |
| ispartof | Polymer crystallization, 2020-04, Vol.3 (2), p.n/a |
| issn | 2573-7619 2573-7619 |
| language | eng |
| recordid | cdi_proquest_journals_2392024974 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Acids Alanine copolyesteramide copolymers Crystallization Lactic acid Phase diagrams poly(lactic acid) polyalanine polylactide Polymorphism Spherulites stereocomplex |
| title | Stereocomplex crystallization, homocrystallization, and polymorphism of enantiomeric copolyesteramides poly(lactic acid‐co‐alanine)s from the melt |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-17T04%3A48%3A37IST&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=Stereocomplex%20crystallization,%20homocrystallization,%20and%20polymorphism%20of%20enantiomeric%20copolyesteramides%20poly(lactic%20acid%E2%80%90co%E2%80%90alanine)s%20from%20the%20melt&rft.jtitle=Polymer%20crystallization&rft.au=Tsuji,%20Hideto&rft.date=2020-04&rft.volume=3&rft.issue=2&rft.epage=n/a&rft.issn=2573-7619&rft.eissn=2573-7619&rft_id=info:doi/10.1002/pcr2.10094&rft_dat=%3Cproquest_cross%3E2392024974%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=2392024974&rft_id=info:pmid/&rfr_iscdi=true |