| Effect of functionalization of multiwalled nanotubes on the crystallization and hydrolytic degradation of biodegradable poly(L-lactide). | |
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MedLine Citation:
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PMID: 19055414 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Biodegradable poly(L-lactide) (PLLA)/multiwalled carbon nanotubes (MWNTs) nanocomposites were prepared via solution blending using two kinds of MWNTs, i.e., pristine multiwalled carbon nanotubes (p-MWNTs) and carboxyl-functionalized multiwalled carbon nanotubes (f-MWNTs). Various techniques were used to investigate the functionalization of MWNTs on the morphology, crystallization, and hydrolytic degradation of PLLA in the nanocomposites. Both MWNTs show fine dispersion in the PLLA matrix; however, the dispersion of f-MWNTs is better than that of p-MWNTs. The incorporation of MWNTs accelerates the crystallization of PLLA in the nanocomposites due to the heterogeneous nucleation effect; furthermore, the crystallization rate of PLLA is faster in the PLLA/f-MWNTs nanocomposite than in the PLLA/p-MWNTs nanocomposite. The exciting aspect of this research is that the hydrolytic degradation of PLLA is enhanced after nanocomposites preparation. |
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Authors:
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Yuanyuan Zhao; Zhaobin Qiu; Wantai Yang |
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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: The journal of physical chemistry. B Volume: 112 ISSN: 1520-6106 ISO Abbreviation: J Phys Chem B Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2009-04-13 Completed Date: 2009-04-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101157530 Medline TA: J Phys Chem B Country: United States |
Other Details:
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Languages: eng Pagination: 16461-8 Citation Subset: IM |
Affiliation:
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State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Crystallization Hydrolysis Microscopy, Electron, Scanning Microscopy, Electron, Transmission Nanotubes* Polyesters / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Polyesters; 26969-66-4/poly(lactide) |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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