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Tricomponent Supramolecular Multiblock Copolymers with Tunable Composition via Sequential Seeded Growth
Author(s) -
Sarkar Aritra,
Sasmal Ranjan,
Das Angshuman,
Venugopal Akhil,
Agasti Sarit S.,
George Subi J.
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202105342
Subject(s) - supramolecular chemistry , polymerization , monomer , supramolecular polymers , copolymer , materials science , polymer , chemistry , combinatorial chemistry , polymer chemistry , nanotechnology , molecule , organic chemistry , composite material
Abstract Synthesis of supramolecular block co‐polymers (BCP) with small monomers and predictive sequence requires elegant molecular design and synthetic strategies. Herein we report the unparalleled synthesis of tri‐component supramolecular BCPs with tunable microstructure by a kinetically controlled sequential seeded supramolecular polymerization of fluorescent π‐conjugated monomers. Core‐substituted naphthalene diimide (cNDI) derivatives with different core substitutions and appended with β‐sheet forming peptide side chains provide perfect monomer design with spectral complementarity, pathway complexity and minimal structural mismatch to synthesize and characterize the multi‐component BCPs. The distinct fluorescent nature of various cNDI monomers aids the spectroscopic probing of the seeded growth process and the microscopic visualization of resultant supramolecular BCPs using Structured Illumination Microscopy (SIM). Kinetically controlled sequential seeded supramolecular polymerization presented here is reminiscent of the multi‐step synthesis of covalent BCPs via living chain polymerization. These findings provide a promising platform for constructing unique functional organic heterostructures for various optoelectronic and catalytic applications.