Document Detail


Complex and hierarchical micelle architectures from diblock copolymers using living, crystallization-driven polymerizations.
MedLine Citation:
PMID:  19136948     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Block copolymers consist of two or more chemically distinct polymer segments, or blocks, connected by a covalent link. In a selective solvent for one of the blocks, core-corona micelle structures are formed. We demonstrate that living polymerizations driven by the epitaxial crystallization of a core-forming metalloblock represent a synthetic tool that can be used to generate complex and hierarchical micelle architectures from diblock copolymers. The use of platelet micelles as initiators enables the formation of scarf-like architectures in which cylindrical micelle tassels of controlled length are grown from specific crystal faces. A similar process enables the fabrication of brushes of cylindrical micelles on a crystalline homopolymer substrate. Living polymerizations driven by heteroepitaxial growth can also be accomplished and are illustrated by the formation of tri- and pentablock and scarf architectures with cylinder-cylinder and platelet-cylinder connections, respectively, that involve different core-forming metalloblocks.
Authors:
Torben Gädt; Nga Sze Ieong; Graeme Cambridge; Mitchell A Winnik; Ian Manners
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-01-11
Journal Detail:
Title:  Nature materials     Volume:  8     ISSN:  1476-1122     ISO Abbreviation:  Nat Mater     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-23     Completed Date:  2009-02-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101155473     Medline TA:  Nat Mater     Country:  England    
Other Details:
Languages:  eng     Pagination:  144-50     Citation Subset:  IM    
Affiliation:
School of Chemistry, University of Bristol, Bristol BS8 1TS, UK.
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MeSH Terms
Descriptor/Qualifier:
Blood Platelets / chemistry*
Crystallization
Micelles*
Microscopy, Atomic Force
Microscopy, Electron, Transmission
Polymers / chemistry*
Chemical
Reg. No./Substance:
0/Micelles; 0/Polymers
Comments/Corrections
Comment In:
Nat Mater. 2009 Feb;8(2):89-91   [PMID:  19165209 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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