Multistep sequence-controlled supramolecular polymerization by the combination of multiple self-assembly motifs

Li, Hui; Rao, Shenghui; Yang, Ying‐Wei; Xu, Fenfen; Huang, Zhe; Huang, Xiaohui; Zhu, Zhu; Liu, Shengyong; Zhang, Zhelin; Tian, Wei

doi:10.1016/j.isci.2023.106023

Cited by 2 publications

(3 citation statements)

References 54 publications

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“…The lower D values obtained from CPN + P2 are again in good agreement with the results obtained from 1 H NMR analyses and viscosity measurements, supporting the idea that the more flexible nature of CPN + P2 enhances the supramolecular polymerization performance, based on the fact that lower D values correspond larger aggregate sizes in solution. 19,48 The DP for a supramolecular polymer can be approximated by considering the D of its individual monomer units. 53 While a DP of 27 mers for CPN + P1 was determined, it was found to be 34 mers for CPN + P2, which are well correlated with the estimations based on the 1 H NMR technique at 190 mM concentrations (cf.…”

Section: Supramolecular Alternating Polymerizationmentioning

confidence: 99%

“…Orthogonal self-assembly based on the above interactions can also provide sequence control on alternating copolymer chains which is an important topic of supramolecular polymer chemistry. − Supramolecular alternating polymers (SAPs) have been demonstrated in several important applications including hierarchical , and self-healing materials, fluorescence resonance energy transfer, sensing, tuneable adhesion, protected quick response codes (when dynamically cross-linked), and tuning electrical conductivity . Recognition motifs based on crown ether, − cyclodextrin, calix[4]arene, cucurbit[8]uril, and pillar[5]arene , macrocycles have been reported in the literature to utilize orthogonal self-assembled systems.…”

Section: Introductionmentioning

confidence: 99%

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Supramolecular Alternating Polymers Based on Calix[4]pyrrole and Pillar[5]arene Molecular Recognition

Memis,

Bektas,

Aydogan

2024

ACS Appl. Polym. Mater.

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Supramolecular alternating polymers (SAPs) were constructed based on orthogonal interactions between an alkylnitrile-tethered calix [4]pyrrole and two different carboxylatefunctionalized pillar[5]arene monomers possessing different chain lengths. Concurrent anion complexation and host−guest interactions were utilized by means of calix[4]pyrrole-and pillar[5]arene-based molecular recognitions. Characterization and multiresponsive behaviors of the resulting SAPs were characterized by means of a series of analyses, including various nuclear magnetic resonance techniques, viscosity measurements, and scanning electron microscopy. The resulting polymers were also applied to the fabrication of hierarchical materials with different dimensionalities. These materials include spherical aggregates with zero-dimensionality, fibers with one-dimensionality, two-dimensional microporous films, and finally three-dimensional materials. Current work represents the first example of SAPs based on calix[4]pyrrole and pillar [5]arene molecular recognition and is expected to be useful for designing and preparation of advanced, multicomponent synthetic self-assembled systems.

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Section: Supramolecular Alternating Polymerizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Supramolecular Alternating Polymers Based on Calix[4]pyrrole and Pillar[5]arene Molecular Recognition

Memis,

Bektas,

Aydogan

2024

ACS Appl. Polym. Mater.

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“…16 In the past few years, a wide variety of SPs with different properties have been reported by reasonably designing monomer structures and utilizing the self-assembly of monomers. SPs not only can be prepared directly by selfassembly of monomers but also can be fabricated by the structure conversion of another SP, 17 such as the conversion from a linear SP (SLP) to a cross-linked polymer (SCP). 18 Compared with the synthesis of SPs through self-assembly of monomers, the direct conversion from one SP to another SP with different topological structures can overcome the time-…”

Section: ■ Introductionmentioning

confidence: 99%

Host–Guest Interactions Induce Supramolecular Assembly and Inhibit Electron Transfer to Enhance the Fluorescence Emission of Supramolecular Polymers

Li,

Huang,

Huang

et al. 2024

Macromolecules

Self Cite

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Three different monomers, A 2 B 2 , C 2 , and D 2 , were synthesized. The monomers A 2 B 2 + C 2 could self-assemble to form a linear supramolecular polymer (SLP) by crown ether-based host−guest interactions at high concentrations. The electrospun nanofibers could be prepared from the SLP solution. When adding monomer D 2 to the SLP solution, the SLP transformed into a cross-linked supramolecular polymer (SCP) through the pillar[5]arene (P5)-based host−guest interaction. The SCP exhibited enhanced fluorescence emission compared to D 2 due to the inhibition of electron transfer between the P5 group and the borondipyrromethene (BODIPY) group on D 2 . When the concentration of monomer A 2 B 2 exceeded 85 mM, the SCP turned into a SP gel and emitted green fluorescence. The gel exhibited multiple stimuli-responsiveness such as K + and temperature responsiveness. The reversible transition of sol−gel could be achieved by K + or temperature control, accompanied by a change of the fluorescence intensity. Additionally, the SCP gel had good self-repairing ability and thermal stability.

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Multistep sequence-controlled supramolecular polymerization by the combination of multiple self-assembly motifs

Cited by 2 publications

References 54 publications

Supramolecular Alternating Polymers Based on Calix[4]pyrrole and Pillar[5]arene Molecular Recognition

Supramolecular Alternating Polymers Based on Calix[4]pyrrole and Pillar[5]arene Molecular Recognition

Host–Guest Interactions Induce Supramolecular Assembly and Inhibit Electron Transfer to Enhance the Fluorescence Emission of Supramolecular Polymers

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