Journal
POLYMER CHEMISTRY
Volume 6, Issue 5, Pages 827-837Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4py01360c
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Funding
- National Science Foundation [DMR-1408872]
- Joint-Hope Education Foundation
- National Natural Science Foundation of China [51210005, 21234005]
- Jiangsu Overseas Research & Training Program for University Prominent Young and Middle-aged Teachers and Presidents
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The combined utilization of chemoselective click chemistry allows for the preparation of well-defined macromolecules with complex compositions and architectures. In this article, we employed the sequential click strategy to further expand the scope of synthetically available giant molecules by precisely constructing new giant surfactants based on polyhedral oligomeric silsesquioxane (POSS) tethered cyclic polymers. The general synthetic approach involves sequentially performed strain-promoted azide-alkyne cycloaddition (SPAAC) as a method for bimolecular homobifunctional ring closure, copper-catalyzed azide-alkyne cycloaddition (CuAAC) for POSS-polymer conjugation, and thiol-Michael/ thiol-ene reactions for POSS surface functionalization. Specifically, a cyclic polymer tethered with two POSS cages of distinct surface chemistry at different locations of the chain has been prepared. This work promises to afford numerous cyclic polymers-based giant surfactants with diverse structural variations for further investigation on unexpected physical properties.
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