Individually separated supramolecular polymer chains toward solution-processable supramolecular polymeric materials

Abstract

Herein, we present a simple design concept for a monomer that affords individually separated supramolecular polymer chains. Random introduction of alkyl chains with different lengths onto a monomer prevented its...

Two‐Dimensional Living Supramolecular Polymerization: Improvement in Edge Roughness of Supramolecular Nanosheets by Using a Dummy Monomer

“…[10,11] A relevant concept has recently been demonstrated to be effective in preventing 1D supramolecular polymers from bundling. [10] First, we prepared 2D seeds using sonication as reported previously. [8a,e] Since 6 N 3 12 and 6 N 3 18 showed distinct kinetics with respect to the formation of seeds under sonication conditions, we used only 6 N 3 18 rather than the mixture (6 N 3 12 and 6 N 3…”

“…We thus exploited a comonomer 6 N 3 18 bearing long octadecyl chains (Scheme 2): the superscript ‘18’ represents octadecyl chains at the para ‐positions in the gallic acid‐based wedges peripheral to the porphyrin core. We expected that copolymerization of 6 N 3 12 and 6 N 3 18 results in nanosheets with better dispersity, because the longer octadecyl chains disturb the surfaces of the supramolecular nanosheets and prevents their interlayer agglomeration [see Supplementary Information (SI), Figures S5 and S6] [10,11] . A relevant concept has recently been demonstrated to be effective in preventing 1D supramolecular polymers from bundling [10] …”

“…We expected that copolymerization of 6 N 3 12 and 6 N 3 18 results in nanosheets with better dispersity, because the longer octadecyl chains disturb the surfaces of the supramolecular nanosheets and prevents their interlayer agglomeration [see Supplementary Information (SI), Figures S5 and S6]. [10,11] A relevant concept has recently been demonstrated to be effective in preventing 1D supramolecular polymers from bundling. [10] First, we prepared 2D seeds using sonication as reported previously.…”

Single-Molecule Study Reveals Ion-Dependent Conformational Change and Nanomechanical Property of Crown Ether-Based Polymer

“…Supramolecular polymeric networks (SPNs) are polymeric networks constructed by both covalent and noncovalent interactions. , SPN-based materials combine the advantages of both covalent and noncovalent polymers through efficient functionalization, and they have a wide range of applications. − The dynamic noncovalent supramolecular interactions in the SPNs endow the corresponding materials with high processability and excellent stimulus-responsiveness. − Among the numerous supramolecular interactions, the outstanding selectivity and tunability make the host–guest interactions one of the widely studied topics in supramolecular chemistry. − There are many macrocycle-based host–guest systems, such as crown ethers, − cyclodextrins, , cucurbit­[n]­urils, , pillararenes, , calixarenes, heteracalixaromatics, corona­[n]­arenes, and beltarenes . Among them, crown ethers, the first generation of macrocyclic hosts, play a key role in the development of host–guest and supramolecular chemistry.…”

Reversible Change in Performances of Polymer Networks via Invertible Architecture–Transformation of Cross-Links

“…Among them, attractive SCNPs can be regarded as specific architecture–transformable polymers. Thanks to the advanced controlled polymerization techniques as well as efficient synthetic strategies, reversible single-chain collapse can be realized through dynamic covalent/noncovalent chemistry, − indicating that SCNPs and linear precursors (LP) can achieve reversible topological switch ability driven by external stimuli.…”