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Title: Facile Directed Assembly of Hollow Polymer Nanocapsules within Spontaneously Formed Catanionic Surfactant Vesicles

Surfactant vesicles containing monomers in the interior of the bilayer were used to template hollow polymer nanocapsules. This study investigated the formation of surfactant/monomer assemblies by two loading methods, concurrent loading and diffusion loading. The assembly process and the resulting aggregates were investigated with dynamic light scattering, small angle neutron scattering, and small-angle X-ray scattering. Acrylic monomers formed vesicles with a mixture of cationic and anionic surfactants in a broad range of surfactant ratios. Regions with predominant formation of vesicles were broader for compositions containing acrylic monomers compared with blank surfactants. This observation supports the stabilization of the vesicular structure by acrylic monomers. Diffusion loading produced monomer-loaded vesicles unless vesicles were composed from surfactants at the ratios close to the boundary of a vesicular phase region on a phase diagram. Both concurrent-loaded and diffusion-loaded surfactant/monomer vesicles produced hollow polymer nanocapsules upon the polymerization of monomers in the bilayer followed by removal of surfactant scaffolds.
 [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [4] ;  [4] ;  [4] ;  [3] ;  [3] ;  [3] ;  [5] ;  [1]
  1. Saint Louis University, Missouri
  2. Valparaiso University, Indiana
  3. ORNL
  4. Kazakh National Technical University, Kazakhstan
  5. DND-CAT, Advanced Photon Source, Argonne, Illinois
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Langmuir; Journal Volume: 30; Journal Issue: 24
Research Org:
Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor (HFIR); Center for Structural Molecular Biology (CSMB)
Sponsoring Org:
SC USDOE - Office of Science (SC)
Country of Publication:
United States