The Investigation of A-alt-B Copolymers via Ring-Opening Metathesis Polymerization

Presenter: 

Melanie W. Lui

Authors: 

Eun Sil Jang, Jeremy M. John, Melanie W. Lui, Richard R. Schrock*

Author Affiliation: 

Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139

Abstract: 

Molecular systems that can prepare copolymers by incorporating monomers A and B in a consistent alternating fashion, poly(A-alt-B), are rare. Our group has demonstrated that metal alkylidene complexes (M = Mo or W) featuring bulky aryloxide and pyrolide ligands are suitable initiators for the formation of tactic copolymers. We are currently exploring the differences between molybdenum and tungsten as polymerization initiators, as well as the possibility of post-polymer modifications.