A supramolecular ABC-type miktoarm star polymer was prepared using a Hamilton wedge (HW) mid-chain functionalized polyethylene glycol-b-polystyrene (PEG-HW-PS) block copolymer and an α-cyanuric acid (CA) chain-end functional linear homopolymer poly-(n-butylacrylate) (CA-PnBA). The PEG-HW-PS element prepared via a combination of atom transfer radical polymerization (ATRP) and copper-catalyzed azide alkyne cycloaddition (CuAAC) (Mn = 13,700 g mol-1, PDI = 1.04). The CA-PnBA strand was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization (Mn = 11,300 g mol-1, PDI = 1.06). The quantitative formation of a well-defined supramolecular ABC-type miktoarm star polymer was unambiguously proven via proton nuclear magnetic resonance (1H NMR) spectroscopy, diffusion ordered NMR spectroscopy (DOSY) and dynamic light scattering (DLS) analyses.
Bibliographical noteFunding Information:
C.B.-K. is grateful for continued support from the Karlsruhe Institute of Technology (KIT) in the context of the Helmholtz BIF program. B.L. acknowledges funding by the Deutsche Forschungsgemeinschaft (DFG LU 835/8-1, research group FOR 934, and DFG instrument facility Pro 2 NMR) and the Helmholtz BioInterfaces program.
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- Miktoarms Star Polymers
- Supramolecular Architectures