Direct Synthesis of Polymer Vesicles on the Hundred-Nanometer-and-Beyond Scale Using Chemical Oscillations.

Autor: Bastakoti BP; Department Earth and Planetary Sciences and Origin of Life Initiative, Harvard University, 20 Oxford Street, Cambridge, 02138, Massachusetts, USA., Guragain S; Department Earth and Planetary Sciences and Origin of Life Initiative, Harvard University, 20 Oxford Street, Cambridge, 02138, Massachusetts, USA., Perez-Mercader J; Department Earth and Planetary Sciences and Origin of Life Initiative, Harvard University, 20 Oxford Street, Cambridge, 02138, Massachusetts, USA.; Santa Fe Institute, Santa Fe, New Mexico, 87501, USA.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2018 Jul 25; Vol. 24 (42), pp. 10621-10624. Date of Electronic Publication: 2018 Jun 28.
DOI: 10.1002/chem.201801633
Abstrakt: The direct synthesis of block copolymer vesicles on the scale of tens to hundreds of nanometers using reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization as an effect of chemical oscillations is reported. RAFT polymerization is successfully accomplished between polyethylene glycol containing a RAFT agent (PEG-CTA) and ethyl acrylate monomer in the presence of the Belousov-Zhabotinsky (B-Z) reaction in oscillatory mode. The self-assembly of poly(ethylene glycol)-b-poly(ethyl acrylate) unimers gives rise to spherical micelles. The self-assembled micelles reorganize and transform to vesicles. All the chemistry of polymerization, self-assembly and self-organization, of macromolecules takes place in a single pot using only a few simple raw materials in aqueous solution.
(© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
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