Cucurbit[8]uril-Based Water-Soluble Supramolecular Dendronized Polymer: Evidence from Single Polymer Chain Morphology and Force Spectroscopy

Abstract

A novel water-soluble supramolecular dendronized polymer (SDP) was prepared through cucurbit[8]uril (CB[8])-naphthalene host−guest interaction. The composition ratio between BDP and CB[8] of as-prepared luminescent supramolecular polymer was confirmed by 1 H NMR technique and mass spectrometry. In addition, atomic force microscopy (AFM) images showing the polymer chain length up to 150 nm and height up to 1.75 nm unambiguously demonstrate the supramolecular polymer formation. This work might be useful for designing other main chain supramolecular dendronized polymers.

Photoresponsive, Water‐Soluble Supramolecular Dendronized Polymer with Specific Lysosome‐Targetable Bioimaging Application in Living Cells

“…found that the micelle aggregate of amphiphilic block copolymer using BODIPY as linkage would decompose upon visible light irradiation . In our previous work, we also reported that the hydrophobic and hydrophilic structural moieties work in concert to regulate the BODIPY‐based supramolecular polymers morphology and photophysical properties . In this work, we synthesized a novel kind of photoresponsive main chain SDP by taking advantage of host–guest interaction between γ‐CD and BODIPY derivative BDPC.…”

“…Specifically, main chain SDPs are usually constructed by non‐covalent forces such as multiple hydrogen bonding, metal coordination, and π–π interaction . Nevertheless, little attention has been paid to main chain SDP by host–guest interaction . As far as we know, there is still no report referring to the photoresponsive main chain SDP architecture by host‐guest interaction.…”

“…The precursor synthesis of the bispyridine‐substituted compound has been reported . The final product BDPC with two coumarin units would be obtained by addition excess of 2‐(bromobutyl) coumarin.…”

Responsiveness and Morphology Study of Dual Stimuli‐Controlled Supramolecular Polymer

“…Moreover, various properties can be introduced to the supramolecular system as the monomer host and guest are manual designed. The resultant supramolecular polymer not only showed responsiveness to external stimuli but also may exhibit specific morphology such as line, dendritic structure, and star‐shape . There are lots of reports on well‐designed supramolecular polymers with intriguing morphologies, but the morphologies change as host–guest interaction took place and vanished were less studied.…”

Morphologies Transformation of BODIPY‐Based Main Chain Supramolecular Polymers Amphiphiles: From Helical Nanowires to Nanosheets

“…We have been interested in preparation of various 4,4‐difluoro‐4‐bora‐3a,4a‐diaza‐ s ‐indacene (BODIPY)‐based SPA through single kind of non‐covalent interaction in the main chain since 2017 . Due to hydrophilic threefolded oligo(ethylene glycol) (OEG) modification on the meso ‐position of hydrophobic BODIPY core, these molecules display amphiphilic properties.…”