Supramolecular assembly of poly(ionic liquid) nanogel driven by host‐stabilized charge transfer interaction

ABSTRACT Poly(ionic liquid) (PIL)‐based nanogels, functionalized by naphthyl (Np), are fabricated via a facile one‐step ternary crosslinking copolymerization in selective solvent. The size of PIL nanogels can be conveniently regulated through the feed ratio of IL monomer to crosslinker. The presence...

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Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2019-11, Vol.57 (22), p.2251-2259
Main Authors: Tang, Yuntao, Wang, Ke, Zuo, Yong, Chen, Xi, Xiong, Yubing, Yuan, Yumin
Format: Article
Language:English
Subjects:
Aggregates
Amantadine
Charge transfer
charge transfer interaction
Copolymerization
Crosslinking
Fourier transforms
Ionic liquids
Ions
nanogel
Nanoparticles
NMR
Nuclear magnetic resonance
Photoelectrons
Photon correlation spectroscopy
poly(ionic liquid)
Resonance scattering
supramolecular assembly
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Summary:ABSTRACT Poly(ionic liquid) (PIL)‐based nanogels, functionalized by naphthyl (Np), are fabricated via a facile one‐step ternary crosslinking copolymerization in selective solvent. The size of PIL nanogels can be conveniently regulated through the feed ratio of IL monomer to crosslinker. The presence of Np groups in PIL nanogel is confirmed by using ultraviolet–visible (UV–vis), Fourier transform infrared, and X‐ray photoelectron spectroscopy measurements. Through introducing cucurbit[8]uril (CB[8]) and bisviologen compound (DEDV) as the host molecule and electron acceptor, respectively, host‐stabilized charge transfer (HSCT) interaction is achieved through utilizing Np containing PIL nanogel as the building block. The studies reveal that PIL nanogels can form schistose aggregates in the scale of micrometer via HSCT interaction. The aggregates will be broken in the presence a competitive guest molecule (amantadine) and can recover by adding another host molecule (CB[7]). HSCT interaction among CB[8], DEDV and PIL nanogel is investigated by dynamic light scattering, UV–vis, and Proton nuclear magnetic resonance. Our studies thus provided an applicable strategy for constructing dynamic polymer nanoparticles through noncovalent interaction. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 2251–2259 Naphthyl (Np)‐grafted poly(ionic liquid) nanogels are fabricated facilely through a one‐step strategy and utilized as the building blocks to achieve supramolecular assembly, which is mediated via host‐stabilized charge transfer interaction.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.29516