Journal
MACROMOLECULES
Volume 44, Issue 8, Pages 2660-2667Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma200021m
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Funding
- National Institutes of Health [R01AR055615, R01GM088678]
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Despite the increasing demands for functional degradable biomatetials, strategies for generating materials with modular compositions and well-defined functionalities from common building blocks are still lacking. Here we report an azido-functionalized cyclic carbonate monomer, AzDXO, that exhibited controlled/living ring-opening polymerization kinetics under the catalysis of 1,8-diazabicyclo[5.4.0]undec-7-ene. Homopolymerization of AzDXO and copolymerization of AzDXO with lactide resulted in polycarbonate and poly-(ester-carbonate) with well-defined composition and narrow polydispersity. Further side-chain functioalizations of these polymers were accomplished under facile conditions via copper-catalyzed or copper-flee strain-promoted azido-allcyne cyclcoaddition. This versatile monomer building block, obtainable in two steps without tedious purifications, provides a practical solution to the preparation of well-defined functional polycarbonates and poly(ester-carbonates).
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