Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 13, Pages 7174-7179Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202014813
Keywords
FRET; helical structures; recognition; self-assembly; self-sorting
Categories
Funding
- National Natural Science Foundation of China (NSFC) [21871073, 22071041, 51673057, 21971052, 51903072]
- fundamental research funds for the central universities of China [PA2019GDPK0057, PA2020GDJQ0028]
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This study prepared single-handed helical poly(phenyl isocyanide)s bearing pyrene and naphthalene probes, demonstrating interesting self-sorting properties driven by helicity and molecular weight in various states.
Self-sorting plays a crucial role in living systems such as the selective assembly of DNA and specific folding of proteins. However, the self-sorting of artificial helical polymers such as biomacromolecules has rarely been achieved. In this work, single-handed helical poly(phenyl isocyanide)s bearing pyrene (Py) and naphthalene (Np) probes were prepared, which exhibited interesting self-sorting properties driven by both helicity and molecular weight (M-n) in solution, solid state, gel, and on the gel surface as well. The polymers with the same helix sense and similar M-n can self-sort and assemble into well-defined two-dimensional smectic architectures and form stable gels in organic solvents. In contrast, mixed polymers with opposite handedness or different M-n were repulsive to each other and did not aggregate. Moreover, the gels of helical polymers with the same handedness and similar M-n can recognize themselves and adhere together to form a gel.
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