Combining modular ligation and supramolecular self-assembly for the construction of star-shaped macromolecules

Altintas, O., Muller, T., Lejeune, E., Plietzsch, O., Bräse, S., & Barner-Kowollik, C. (2012) Combining modular ligation and supramolecular self-assembly for the construction of star-shaped macromolecules. Macromolecular Rapid Communications, 33(11).

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A well-defined random copolymer of styrene (S) and chloromethylstyrene (CMS) featuring lateral chlorine moieties with an alkyne terminal group is prepared (P(S-co-CMS), M̄ n = 5500 Da, PDI = 1.13). The chloromethyl groups are converted into Hamilton wedge (HW) entities (P(S-co-HWS), M̄ n = 6200 Da, PDI = 1.13). The P(S-co-HWS) polymer is subsequently ligated with tetrakis(4-azidophenyl)methane to give HW-functional star-shaped macromolecules (P(S-co-HWS)) 4, M̄ n = 25 100 Da, PDI = 1.08). Supramolecular star-shaped copolymers are then prepared via self-assembly between the HW-functionalized four-arm star-shaped macromolecules (P(S-co-HW)) 4 and cyanuric acid (CA) end-functionalized PS (PS-CA, M̄ n = 3700 Da, PDI = 1.04), CA end-functionalized poly(methyl methacrylate) (PMMA-CA, M̄ n = 8500 Da, PDI = 1.13) and CA end-functionalized polyethylene glycol (PEG-CA, M̄ n = 1700 Da, PDI = 1.05). The self-assembly is monitored by 1H NMR spectroscopy and light scattering analyses. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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ID Code: 99293
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :13
Export Date: 5 September 2016
Correspondence Address: Bräse, S.; Institut für Organische Chemie, Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; email:
Chemicals/CAS: Polystyrenes; poly(p-chloromethylstyrene)
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Keywords: copper-catalyzed azide-alkyne cycloaddition (CuAAC), cyanuric acid, dynamic light scattering, graft Hamilton wedge, hydrogen bonding, modular ligation, nitroxide-mediated radical polymerization (NMP), self-assembly, star-shaped polymer, supramolecular chemistry, Azide-alkyne cycloaddition, Cyanuric acids, Hamiltons, Nitroxide mediated radical polymerization, Acetylene, Chlorine, Copolymers, Esters, Hydrogen bonds, Macromolecules, Methane, Polyethylene glycols, Polyethylene oxides, Styrene, Self assembly, poly(p chloromethylstyrene), poly(p-chloromethylstyrene), polystyrene derivative, article, chemical structure, chemistry, methodology, nuclear magnetic resonance spectroscopy, synthesis, Magnetic Resonance Spectroscopy, Molecular Structure, Polystyrenes
DOI: 10.1002/marc.201200019
ISSN: 10221336
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 04 Oct 2016 02:37

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