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Chinese Journal of Polymer Science

, Volume 37, Issue 3, pp 235–242 | Cite as

Thermo-sensitive Microgels Supported Gold Nanoparticles as Temperature-mediated Catalyst

  • Xian-Jing Zhou
  • Hai-Peng Lu
  • Ling-Li Kong
  • Dong Zhang
  • Wei Zhang
  • Jing-Jing Nie
  • Jia-Yin Yuan
  • Bin-Yang DuEmail author
  • Xin-Ping WangEmail author
Article
  • 31 Downloads

Abstract

Microgels with a thermo-sensitive poly(N-isopropylacrylamide) (polyNIPAm) backbone and bis-imidazolium (VIM) ionic cross-links, denoted as poly(NIPAm-co-VIM), were successfully prepared. The as-synthesized ionic microgels were converted to nanoreactors, denoted as Au@PNI MGs, upon generation and immobilization of gold nanoparticles (Au NPs) of 5–8 nm in size into poly(NIPAm-co-VIM). The content of Au NPs in microgels could be regulated by controlling the 1,6-dibromohexane/vinylimidazole molar ratio in the quaternization reaction. The microgel-based nanoreactors were morphologically spherical and uniform in size, and presented reversible thermo-sensitive behavior with volume phase transition temperatures (VPTTs) at 39–40 °C. The Au@PNI MGs were used for the reduction of 4-nitrophenol, of which the catalytic activity could be modulated by temperature.

Keywords

Microgel Thermo-sensitive Gold nanoparticle Catalyst 

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Notes

Acknowledgments

The authors thank the National Natural Science Foundation of China (No. 21704092) and Science Foundation of Zhejiang Sci-Tech University (No. 16062194-Y) for financial support.

Supplementary material

10118_2019_2182_MOESM1_ESM.pdf (2.1 mb)
Thermo-sensitive Microgels Supported Gold Nanoparticles as Temperature-mediated Catalyst

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Copyright information

© Chinese Chemical Society, Institute of Chemistry (CAS) and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xian-Jing Zhou
    • 1
  • Hai-Peng Lu
    • 1
  • Ling-Li Kong
    • 1
  • Dong Zhang
    • 1
  • Wei Zhang
    • 1
  • Jing-Jing Nie
    • 2
  • Jia-Yin Yuan
    • 3
  • Bin-Yang Du
    • 4
    Email author
  • Xin-Ping Wang
    • 1
    Email author
  1. 1.Department of ChemistryZhejiang Sci-Tech UniversityHangzhouChina
  2. 2.Department of ChemistryZhejiang UniversityHangzhouChina
  3. 3.Department of Materials and Environmental ChemistryStockholm UniversityStockholmSweden
  4. 4.Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & EngineeringZhejiang UniversityHangzhouChina

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