| Enhanced stereocomplex formation of poly(L-lactic acid) and poly(D-lactic acid) in the presence of stereoblock poly(lactic acid). | |
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MedLine Citation:
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PMID: 17541929 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Stereoblock poly(lactic acid) (sb-PLA) is incorporated into a 1:1 polymer blend system of poly(L-lactic acid) (PLLA) and poly(D-lactic acid) (PDLA) that has a high molecular weight to study its addition effect on the stereocomplex (sc) formation of PLLA and PDLA. The ternary polymer blend films are first prepared by casting polymer solutions of sb-PLA, PLLA, and PDLA with different compositions. Upon increasing the content of sb-PLA in the blend films the sc crystallization is driven to a higher degree, while the formation of homo-chiral (hc) crystals is decreased. Lowering the molecular weight of the incorporated sb-PLA effectively increases the sc formation. Consequently, it is revealed that sb-PLA can work as a compatibilizer to improve the poor sc formation in the polymer blend of PLLA and PDLA. |
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Authors:
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Kazuki Fukushima; Yoon-Hee Chang; Yoshiharu Kimura |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Macromolecular bioscience Volume: 7 ISSN: 1616-5187 ISO Abbreviation: Macromol Biosci Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-06-11 Completed Date: 2008-03-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101135941 Medline TA: Macromol Biosci Country: Germany |
Other Details:
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Languages: eng Pagination: 829-35 Citation Subset: IM |
Affiliation:
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Department of Biomolecular Engineering, Kyoto Institute of Technology, Matsugasaki, Kyoto, 606-8585, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chromatography, Gel Crystallization / methods Lactic Acid / chemical synthesis* Polymers / chemical synthesis* |
| Chemical | |
Reg. No./Substance:
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0/Polymers; 26100-51-6/poly(lactic acid); 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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