Janus Colloids Formed by Biphasic Grafting at a Pickering Emulsion Interface

A two-faced synthesis: Biphasic grafting at a Pickering emulsion interface leads to the formation of Janus colloids (see scheme; ATRP: atom transfer radical polymerization), which form Janus composite colloids by the preferential growth of desired materials in specific regions of the original colloids. This approach is general and can be extended to the synthesis of a huge family of such colloids. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z705103_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.