Characterization of Nanostructured Hollow Polymer Spheres with Small-Angle Neutron Scattering (SANS)

Hollow polymer spheres synthesized from a vesicle-directed polymerization can be dried and redispersed in water using a variety of nonionic ethoxylated alcohol surfactants as stabilizers. The final dispersions consist of both polymer shells and surfactant micelles, which remain together in colloidal...

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Veröffentlicht in:Journal of colloid and interface science 2002-01, Vol.245 (1), p.68-74
Hauptverfasser: McKelvey, C.A., Kaler, E.W.
Format: Artikel
Sprache:eng
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Zusammenfassung:Hollow polymer spheres synthesized from a vesicle-directed polymerization can be dried and redispersed in water using a variety of nonionic ethoxylated alcohol surfactants as stabilizers. The final dispersions consist of both polymer shells and surfactant micelles, which remain together in colloidal suspension for at least several months. Small-angle neutron scattering (SANS) is used to measure the polymer shell thickness (63 Å) and core radius (560 Å) of the surfactant-stabilized hollow polymer spheres in the presence of surfactant micelles. Characterization by SANS provides information about the surfactant bilayer and polymer shell thicknesses which were previously unattainable.
ISSN:0021-9797
1095-7103
DOI:10.1006/jcis.2001.7999