Electrochemical peeling of dendrimers

ANYL 55

Winston Ong, winston_ong@hotmail.com, Louisiana State University, Baton Rouge, LA 70820 and Robin L. McCarley, tunnel@lsu.edu, Department of Chemistry, Lousiana State University, Choppin Hall, Baton Rouge, LA 70803.
Electrochemical methodologies that alter the covalent structures of redox-active dendrimers will be discussed. These dendrimers belong to the poly(propylene imine), PPI, family and contain up to 64 redox-cleavable end-group quinone moeities. Cleavage of the quinone units were shown to proceed in a zero-order fashion in solution when chemical redox agents are used to activate the end-group removal. Similar phenomena was observed when end-group cleavage was initiated by coulometry, where generations 1-5 of the aforementioned quinone-appended dendrimers liberated their end-group quinones in a similar timescale as in the case when chemical redox agents were used.
 

General Papers
7:00 PM-9:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Division of Analytical Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006