General Synthetic Route toward Functional Hollow Spheres with Double‐Shelled Structures

Abstract

Double agent: Controlled sulfonation of polystyrene hollow spheres gives hydrophilic layers with sulfonic acid groups that allow the formation of a wide variety of functional composites. In this way, double-shelled hollow spheres have been prepared in one step by using such sulfonated polystyrene hollow spheres as templates (see TEM image of titania sphere). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z501556_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.