Super Toughened Poly(lactic acid) Ternary Blends by Simultaneous Dynamic Vulcanization and Interfacial Compatibilization
In this study, a poly(lactic acid) (PLA) ternary blend system consisting of PLA, an epoxy-containing elastomer, and a zinc ionomer was introduced and studied in detail. Transmission electron microscopy revealed that the “salami”-like phase structure was formed in the ternary blends. While increase i...
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| Veröffentlicht in: | Macromolecules 2010-07, Vol.43 (14), p.6058-6066 |
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| container_title | Macromolecules |
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| creator | Liu, Hongzhi Chen, Feng Liu, Bo Estep, Greg Zhang, Jinwen |
| description | In this study, a poly(lactic acid) (PLA) ternary blend system consisting of PLA, an epoxy-containing elastomer, and a zinc ionomer was introduced and studied in detail. Transmission electron microscopy revealed that the “salami”-like phase structure was formed in the ternary blends. While increase in blending temperature had little effects on the tensile properties of the resulting blends, it greatly changed the impact strength. For the blends prepared at 240 °C by extrusion blending, the resulting PLA ternary blends displayed supertoughness with moderate levels of strength and modulus. It was found that the zinc ions catalyzed the cross-linking of epoxy-containing elastomer and also promoted the reactive compatibilization at the interface of PLA and the elastomer. Both blending temperature and elastomer/ionomer ratio were found to play important roles in achieving supertoughness of the blends. The significant increase in notched impact strength was attributed to the effective interfacial compatibilization at elevated blending temperatures. |
| doi_str_mv | 10.1021/ma101108g |
| format | Article |
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Transmission electron microscopy revealed that the “salami”-like phase structure was formed in the ternary blends. While increase in blending temperature had little effects on the tensile properties of the resulting blends, it greatly changed the impact strength. For the blends prepared at 240 °C by extrusion blending, the resulting PLA ternary blends displayed supertoughness with moderate levels of strength and modulus. It was found that the zinc ions catalyzed the cross-linking of epoxy-containing elastomer and also promoted the reactive compatibilization at the interface of PLA and the elastomer. Both blending temperature and elastomer/ionomer ratio were found to play important roles in achieving supertoughness of the blends. The significant increase in notched impact strength was attributed to the effective interfacial compatibilization at elevated blending temperatures.</description><identifier>ISSN: 0024-9297</identifier><identifier>EISSN: 1520-5835</identifier><identifier>DOI: 10.1021/ma101108g</identifier><identifier>CODEN: MAMOBX</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Exact sciences and technology ; Mechanical properties ; Organic polymers ; Physicochemistry of polymers ; Properties and characterization</subject><ispartof>Macromolecules, 2010-07, Vol.43 (14), p.6058-6066</ispartof><rights>Copyright © 2010 American Chemical Society</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a355t-68c905f5f5cfd64ddfb88a681dbdfbafe6b653cc64bd71ac76b6c1b12c16d1383</citedby><cites>FETCH-LOGICAL-a355t-68c905f5f5cfd64ddfb88a681dbdfbafe6b653cc64bd71ac76b6c1b12c16d1383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ma101108g$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ma101108g$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23041012$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Hongzhi</creatorcontrib><creatorcontrib>Chen, Feng</creatorcontrib><creatorcontrib>Liu, Bo</creatorcontrib><creatorcontrib>Estep, Greg</creatorcontrib><creatorcontrib>Zhang, Jinwen</creatorcontrib><title>Super Toughened Poly(lactic acid) Ternary Blends by Simultaneous Dynamic Vulcanization and Interfacial Compatibilization</title><title>Macromolecules</title><addtitle>Macromolecules</addtitle><description>In this study, a poly(lactic acid) (PLA) ternary blend system consisting of PLA, an epoxy-containing elastomer, and a zinc ionomer was introduced and studied in detail. Transmission electron microscopy revealed that the “salami”-like phase structure was formed in the ternary blends. While increase in blending temperature had little effects on the tensile properties of the resulting blends, it greatly changed the impact strength. For the blends prepared at 240 °C by extrusion blending, the resulting PLA ternary blends displayed supertoughness with moderate levels of strength and modulus. It was found that the zinc ions catalyzed the cross-linking of epoxy-containing elastomer and also promoted the reactive compatibilization at the interface of PLA and the elastomer. Both blending temperature and elastomer/ionomer ratio were found to play important roles in achieving supertoughness of the blends. The significant increase in notched impact strength was attributed to the effective interfacial compatibilization at elevated blending temperatures.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Mechanical properties</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Properties and characterization</subject><issn>0024-9297</issn><issn>1520-5835</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNptkE1LAzEQhoMoWKsH_0Eugj2sJtnNdnvU-lUoKLR6XWbzUVOy2SXZBddfb6SlXmQOMy_zzAvzInRJyQ0ljN7WQAmlpNgcoRHljCS8SPkxGhHCsmTGZtNTdBbClkSIZ-kIfa36Vnm8bvrNp3JK4rfGDtcWRGcEBmHkBK-Vd-AHfG-VkwFXA16ZurcdONX0AT8MDuoIf_RWgDPf0JnGYXASL1ynvI4mYPG8qdu4qYzdE-foRIMN6mLfx-j96XE9f0mWr8-L-d0ygZTzLskLMSNcxxJa5pmUuioKyAsqqziCVnmV81SIPKvklIKYRi1oRZmguaRpkY7RZOcrfBOCV7psvanjPyUl5W9k5SGyyF7t2BaCAKs9OGHC4YClJIso--NAhHLb9DEfG_7x-wHOuHqi</recordid><startdate>20100727</startdate><enddate>20100727</enddate><creator>Liu, Hongzhi</creator><creator>Chen, Feng</creator><creator>Liu, Bo</creator><creator>Estep, Greg</creator><creator>Zhang, Jinwen</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20100727</creationdate><title>Super Toughened Poly(lactic acid) Ternary Blends by Simultaneous Dynamic Vulcanization and Interfacial Compatibilization</title><author>Liu, Hongzhi ; Chen, Feng ; Liu, Bo ; Estep, Greg ; Zhang, Jinwen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a355t-68c905f5f5cfd64ddfb88a681dbdfbafe6b653cc64bd71ac76b6c1b12c16d1383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Mechanical properties</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Properties and characterization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Hongzhi</creatorcontrib><creatorcontrib>Chen, Feng</creatorcontrib><creatorcontrib>Liu, Bo</creatorcontrib><creatorcontrib>Estep, Greg</creatorcontrib><creatorcontrib>Zhang, Jinwen</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Macromolecules</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Hongzhi</au><au>Chen, Feng</au><au>Liu, Bo</au><au>Estep, Greg</au><au>Zhang, Jinwen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Super Toughened Poly(lactic acid) Ternary Blends by Simultaneous Dynamic Vulcanization and Interfacial Compatibilization</atitle><jtitle>Macromolecules</jtitle><addtitle>Macromolecules</addtitle><date>2010-07-27</date><risdate>2010</risdate><volume>43</volume><issue>14</issue><spage>6058</spage><epage>6066</epage><pages>6058-6066</pages><issn>0024-9297</issn><eissn>1520-5835</eissn><coden>MAMOBX</coden><abstract>In this study, a poly(lactic acid) (PLA) ternary blend system consisting of PLA, an epoxy-containing elastomer, and a zinc ionomer was introduced and studied in detail. Transmission electron microscopy revealed that the “salami”-like phase structure was formed in the ternary blends. While increase in blending temperature had little effects on the tensile properties of the resulting blends, it greatly changed the impact strength. For the blends prepared at 240 °C by extrusion blending, the resulting PLA ternary blends displayed supertoughness with moderate levels of strength and modulus. It was found that the zinc ions catalyzed the cross-linking of epoxy-containing elastomer and also promoted the reactive compatibilization at the interface of PLA and the elastomer. Both blending temperature and elastomer/ionomer ratio were found to play important roles in achieving supertoughness of the blends. The significant increase in notched impact strength was attributed to the effective interfacial compatibilization at elevated blending temperatures.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ma101108g</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Exact sciences and technology Mechanical properties Organic polymers Physicochemistry of polymers Properties and characterization |
| title | Super Toughened Poly(lactic acid) Ternary Blends by Simultaneous Dynamic Vulcanization and Interfacial Compatibilization |
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