Amino acid-bearing ROMP polymers with a stereoregular backbone |
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Authors: | Lee Jae Chul Parker Kathlyn A Sampson Nicole S |
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Affiliation: | Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, USA. |
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Abstract: | The ruthenium-catalyzed ring-opening polymerization (ROMP) of 1-cyclobutenecarbonyl glycine methyl ester provides translationally invariant, head-to-tail ordered polymers. This polybutadiene backbone contains (within the limits of detection) only E-trisubstituted olefins, and it has no stereocenters that would serve as a source of structural ambiguities. Characterization of the polymer products indicates that they have polydispersities ranging from 1.2 to 1.6 and suggests that they are the products of a "living" polymerization. 1-Cyclobutenecarboxamide-derived ROMP polymers are excellent prospects for applications that require stereoregular chains functionalized with polar ligands. |
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