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(A) Chemical structure of the diacetylene monomer, PCDA-4APDS. (B) Schematic illustration of molecular self-assembly of PCDA-4APDS. (C) Schematic representation of polymerized PCDA-4APDS showing intermolecular p–p stacking and H-bonding interactions, and the poly(ene–yne) backbone of the PDA. Reprinted with permission from Lee et al. (2019a). Copyright 2019, Royal Society of Chemistry.
