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Cited by 278

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

SiOH-Functionalized Polystyrene Latexes. A Step toward the Synthesis of Hollow Silica Nanoparticles

Tissot, I., Reymond, J. P., Lefebvre, F., Bourgeat-Lami, E.·2002·Chemistry of Materials

Abstract

Following a previous work (Tissot, I.; Lefebvre, F.; Bourgeat-Lami, E. Macromolecules 2001, submitted for publication), polystyrene latex particles containing silanol groups have been synthesized in emulsion polymerization using 3-(trimethoxysilyl)propyl methacrylate (MPS) as a functional comonomer. The surface properties of the functionalized polymer latexes were investigated in depth using electrophoretic measurements and the soap titration method. Both techniques gave qualitative evidence of the presence of SiOH groups at the particles surface. The concentration of surface charges was quantified by potentiometric and conductometric titrations. As expected, the surface charge density increased with an increase in the pH and with an increase in the MPS concentration. Because of the presence of silanol groups at the particles surface, no loss of colloidal stability was observed when the functional polystyrene latexes were suspended into ethanol/water mixtures. The silanol groups were then converted into a 20 nm thick silica layer using a procedure derived from the Stöber method (Stöber, W.; Fink, A.; Bohn, E. J. Colloid Interface Sci . 1968, 26, 62). Hollow silica nanoparticles were finally generated by thermal degradation of the templating organic latex core. This work illustrates the determining role of interfaces in the structuration of organic−inorganic colloids.

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Metadata

Authors
Tissot, I., Reymond, J. P., Lefebvre, F., & Bourgeat-Lami, E.
Venue
Chemistry of Materials
Published
2002-02-13
Volume
14
Issue
3
Pages
1325-1331
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W1989918959
Cited by
278
References
19
FWCI
7.49
Type
journal article
Language
en
Open access
closed

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