title: Amino acid-bearing ROMP polymers with a stereoregular backbone.
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.
authors.affiliation: Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, USA.
authors.forename: Jae Chul
authors.initials: JC
authors.lastname: Lee
authors.forename: Kathlyn A
authors.initials: KA
authors.lastname: Parker
authors.forename: Nicole S
authors.initials: NS
authors.lastname: Sampson
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D002384:Catalysis; D003503:Cyclobutanes / Q000737:chemistry*; D003516:Cycloparaffins / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D012428:Ruthenium; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013237:Stereoisomerism
chemical_list: D000596:Amino Acids; D003503:Cyclobutanes; D003516:Cycloparaffins; D011108:Polymers; D012428:Ruthenium