POLY 125 |
| Zwitterionic polymerization of lactide can be accomplished using N-heterocyclic carbene (NHC) catalysts to yield linear and cyclic polymers of relatively high molecular weights and narrow polydispersities. Stereocomplexation behavior has been observed in mixtures of linear poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA). In this study, we seek to understand the role of topology on the formation of stereocomplexes. Here we provide evidence using differential scanning calorimetry (DSC) data for the existence of stereocomplexes between the linear and cyclic forms of polylactide. We show that stereocomplexes form readily between cyclic and linear polylactides. These studies will enable the synthesis and study of non-covalent assemblies from mixtures of cyclic and linear polymers. |
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Undergraduate Research in Polymer Science
6:00 PM-8:00 PM, Sunday, April 6, 2008 Morial Convention Center -- Hall A, Poster
Division of Polymer Chemistry |