Journal
BIOMACROMOLECULES
Volume 14, Issue 9, Pages 3346-3353Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm4010832
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Funding
- National Heart Lung and Blood Institute [HHSN268601000046C]
- National Science Foundation [CHE-1057441]
- Welch Foundation [A-0001]
- Royal Society of Chemistry
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1057441] Funding Source: National Science Foundation
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A natural product-based polymer platform, having the characteristics of being derived from renewable materials and capable of breaking down, ultimately, into natural byproducts, has been prepared through the ring-opening polymerization (ROP) of a glucose-based bicyclic carbonate monomer. ROP was carried out via chain extension of a polyphosphoester (PPE) macroinitiator in the presence of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) organocatalyst to afford the PPE-b-poly(n-glucose carbonate) (PDGC) block copolymer. This new copolymer represents a functional architecture that can be rapidly transformed through thiol-yne reactions along the PPE segment into a diverse variety of amphiphilic polymers, which interestingly display stimuli-sensitive phase behavior in the form of a lower critical solution temperature (LCST). Below the LCST, they undergo self-assembly to form spherical core-shell nanostructures that display a poorly defined core-shell morphology. It is expected that hydrophobic patches are exposed within the micellar corona, reminiscent of the surface complexity of proteins, making these materials of interest for triggered and reversible assembly disassembly processes.
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