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Tin(IV) Oxide Coatings From Hybrid organotin/polymer Nanoparticles

Tin(IV) Oxide Coatings From Hybrid organotin/polymer Nanoparticles

Rafael Muñoz-Espí, Paolo Dolcet, Torsten Rossow, Manfred Wagner, Katharina Landfester, Daniel Crespy

ACS Appl Mater Interfaces. 2011 Nov;3(11):4292-8.

PMID: 21956966

Abstract:

Tin dioxide coatings are widely applied in glasses and ceramics to improve not only optical, but also mechanical properties. In this work, we report a new method to prepare SnO(2) coatings from aqueous dispersions of polymer/organotin hybrid nanoparticles. Various liquid organotin compounds were encapsulated in polymeric nanoparticles synthesized by miniemulsion polymerization. Large amounts of tetrabutyltin and bis(tributyltin) could be successfully incorporated in cross-linked and noncross-linked polystyrene nanoparticles that served as sacrificial templates for the formation of tin oxide coatings after etching with oxygen plasma or calcination. Cross-linked polystyrene particles containing bis(tributyltin)--selected for having a high boiling point--were found to be especially suited for the oxide coating formation. The content of metal in the particles was up to 12 wt %, and estimations by thermogravimetrical indicated that at least 96% of the total organotin compound was converted to SnO(2). The resulting coatings were mainly identified as tetragonal SnO(2) (cassiterite) by X-ray diffraction, although a coexistence of this phase with orthorhombic SnO(2) was observed for samples prepared with bis(tributyltin).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP18282105	Tin(IV) oxide		18282-10-5	Price

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