N-Heterocyclic Carbenes for the Organocatalytic Ring-Opening Polymerization of ε-Caprolactone
MacromoleculesPublished 17 February 2009
Nahrain E. Kamber, Wonhee Jeong, Silvia González, James L. Hedrick, Robert M. Waymouth
Citations169
SJR quartileQ1
SJR score1.35
SNIP1.22
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Abstract
We report the synthesis of poly(ε-caprolactone) utilizing N-heterocyclic carbene (NHC) organocatalysts. Sterically unencumbered NHCs were found to be highly effective for the living ring-opening polymerization of ε-caprolactone under mild conditions. The NHCs were able to produce poly(ε-caprolactone)s with controlled molecular weights, low polydispersities, and well-defined end groups derived from the alcohol initiator. Star-shaped poly(ε-caprolactone)s with three and four arms were prepared using NHC organocatalysts and characterized by 1 H NMR and GPC.
Keywords
ChemistryMaterials Science
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