Efficient synthesis of poly(2-vinylpyridine)-silica colloidal nanocomposite particles using a cationic azo initiator

Langmuir

Volumn 23, Issue 23, 2007, Pages 11812-11818

  Duping, Damien ^a   Schmidt, Andreas ^a   Balmer, Jennifer A ^a   Armes, Steven P ^a  

^a UNIVERSITY OF SHEFFIELD   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COLLOIDS; EMULSION POLYMERIZATION; ORGANIC POLYMERS; SILICA; STABILIZERS (AGENTS); SYNTHESIS (CHEMICAL); TRANSMISSION ELECTRON MICROSCOPY;

POLY(2-VINYLPYRIDINE); SILICA SOL; SURFACE POLYMERIZATION;

NANOCOMPOSITES;

EID: 36248951231     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la701825m     Document Type: Article

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42. This observation is consistent with our aqueous electrophoresis studies of the cationic initiator-coated silica sol at 20°C. AIBA adsorption lowers the zeta potential from -38 mV for the pristine sol to -31 mV at pH 9.8, as expected. However, surface charge reversal does not occur, which suggests that the surface coverage is incomplete. This is consistent with the Langmuir isotherm data shown in Supporting Information.
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