Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 42, Issue 19, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202100368
Keywords
helical polymers; poly(isocyanide)s; polymer folding; quadrupole interactions
Categories
Funding
- National Science Foundation [CHE-1902917]
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True tertiary architectures with defined local secondary structures are rare in synthetic systems. Adaptation of well-developed synthetic building blocks and controlling their folding through diverse interactions can be a general approach toward this goal. In this study, 3D hierarchical assemblies with distinct secondary domains were successfully synthesized through intramolecular folding of block copolymers.
True tertiary architectures with defined local secondary structures are rare in synthetic systems. Adapting well-developed synthetic building blocks and controlling their folding through diverse interactions can be a general approach toward this goal. In this contribution, the synthesis of 3D hierarchical assemblies with distinct secondary domains formed through the intramolecular folding of a block copolymer containing a coil-like poly(styrene) (PS) block with a helical poly(isocyanide) block induced by phenyl-pentafluorophenyl quadrupole interactions is reported. The PS block is prepared via atom-transfer radical polymerization and end functionalized with a nickel complex that serves as a macroinitiator for the polymerization of chiral isocyanides bearing pentafluorophenyl pendants. The folding behavior of the coil-helix block copolymers is investigated by dynamic light scattering, NMR spectroscopy, wide-angle X-ray scattering, and differential scanning calorimetry.
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