Construction of Chiroptical Switch on Silica Nanoparticle Surface <italic style="font-style: italic">via</italic> Chiral Self-assembly of Side-chain Azobenzene-containing Polymer

Guang-Xing Song; Teng-Fei Miao; Xiao-Xiao Cheng; Hao-Tian Ma; Zi-Xiang He; Wei Zhang; Zheng-Biao Zhang; Xiu-Lin Zhu

doi:10.1007/s10118-021-2580-5

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Construction of Chiroptical Switch on Silica Nanoparticle Surface via Chiral Self-assembly of Side-chain Azobenzene-containing Polymer

ARTICLE | Updated：2021-06-04

- Construction of Chiroptical Switch on Silica Nanoparticle Surface via Chiral Self-assembly of Side-chain Azobenzene-containing Polymer
- Chinese Journal of Polymer Science Vol. 39, Issue 12, Pages: 1528-1537(2021)
- Affiliations：
  
  Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, China
- Author bio：
  
  weizhang@suda.edu.cn
- Funds：
- DOI：10.1007/s10118-021-2580-5
  CLC：
- Received：15 February 2021，
  
  Revised：2021-3-10，
  
  Accepted：12 March 2021，
  
  Online First：04 June 2021，
  
  Published：18 October 2021
- Accepted：
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Song, G. X.; Miao, T. F.; Cheng, X. X.; Ma, H. T.; He, Z. X.; Zhang, W.; Zhang, Z. B.; Zhu, X. L. Construction of chiroptical switch on silica nanoparticle surface via chiral self-assembly of side-chain azobenzene-containing polymer. Chinese J. Polym. Sci. 2021, 39, 1528–1537

Guang-Xing Song, Teng-Fei Miao, Xiao-Xiao Cheng, et al. Construction of Chiroptical Switch on Silica Nanoparticle Surface via Chiral Self-assembly of Side-chain Azobenzene-containing Polymer[J]. Chinese Journal of Polymer Science, 2021, 39(12): 1528-1537. DOI: 10.1007/s10118-021-2580-5.
Song, G. X.; Miao, T. F.; Cheng, X. X.; Ma, H. T.; He, Z. X.; Zhang, W.; Zhang, Z. B.; Zhu, X. L. Construction of chiroptical switch on silica nanoparticle surface via chiral self-assembly of side-chain azobenzene-containing polymer. Chinese J. Polym. Sci. 2021, 39, 1528–1537 DOI： 10.1007/s10118-021-2580-5.

Guang-Xing Song, Teng-Fei Miao, Xiao-Xiao Cheng, et al. Construction of Chiroptical Switch on Silica Nanoparticle Surface via Chiral Self-assembly of Side-chain Azobenzene-containing Polymer[J]. Chinese Journal of Polymer Science, 2021, 39(12): 1528-1537. DOI: 10.1007/s10118-021-2580-5. DOI：

摘要

Abstract

In this contribution

we utilized surface-initiated atom transfer radical polymerization (SI-ATRP) to prepare organic-inorganic hybrid core/shell silica nanoparticles (NPs)

where silica particles acted as cores and polymeric shells (PAzoMA*) were attached to silica particles

via

covalent bond. Subsequently

chiroptical switch was successfully constructed on silica NPs surface taking advantage of supramolecular chiral self-assembly of the grafted side-chain Azo-containing polymer (PAzoMA*). We found that the supramolecular chirality was highly dependent on the molecular weight of grafted PAzoMA*. Meanwhile

the supramolecular chirality could be regulated using 365 nm UV light irradiation and heating-cooling treatment

and a reversible supramolecular chiroptical switch could be repeated for over five cycles on silica NPs surface. Moreover

when heated above the glass transition temperature (

) of PAzoMA*

the organic-inorganic hybrid nanoparticles (SiO

@PAzoMA* NPs) still exhibited intense DRCD signals. Interestingly

the supramolecular chirality could be retained in solid film for more than 3 months. To conclude

we have prepared an organic-inorganic hybrid core/shell chiral silica nanomaterial with dynamic reversible chirality

thermal stability and chiral storage functions

providing potential applications in dynamic asymmetric catalysis

chiral separation and so on.

关键词

Keywords

references

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⁰

Construction of Chiroptical Switch on Silica Nanoparticle Surface via Chiral Self-assembly of Side-chain Azobenzene-containing Polymer

DOI：10.1007/s10118-021-2580-5

摘要

Abstract

关键词

Keywords

references