Ion-Induced Morphological Changes in ``Crew-Cut'' Aggregates of Amphiphilic Block Copolymers

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DOIResolve DOI: http://doi.org/10.1126/science.272.5269.1777
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TypeArticle
Journal titleScience
Volume272
Issue5269
Pages17771779; # of pages: 3
AbstractThe addition of ions in micromolar (CaCl2 or HCl) or millimolar (NaCl) concentrations can change the morphology of ``crew-cut'' aggregates of amphiphilic block copolymers in dilute solutions. In addition to spherical, rodlike, and univesicular or lamellar aggregates, an unusual large compound vesicle morphology can be obtained from a single block copolymer. Some features of the spontaneously formed large compound vesicles may make them especially useful as vehicles for delivering drugs and as models of biological cells. Gelation of a dilute spherical micelle solution can also be induced by ions as the result of the formation of a cross-linked ``pearl necklace'' morphology.
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AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12328457
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Record identifierb3931cb3-04dc-4274-9065-bcca5c606f7f
Record created2009-09-10
Record modified2016-05-09
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