Polymer/Metal Segmental Janus Nanoparticles

Lin Tang; Fu-xin Liang; Qian Wang; Xiao-zhong Qu; Bing-yin Jiang; Zhen-zhong Yang

doi:10.1007/s10118-017-1946-1

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Polymer/Metal Segmental Janus Nanoparticles

Papers | Updated：2021-02-18

- Polymer/Metal Segmental Janus Nanoparticles
- Polymer/Metal Segmental Janus Nanoparticles
- Chinese Journal of Polymer Science 2017年35卷第7期页码：799-808
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  b.University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  Zhen-zhong Yang (杨振忠), E-mail: Yangzz@iccas.ac.cn
- Funds：
  
  the National Natural Science Foundation of China(51233007);the National Natural Science Foundation of China(51622308);Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s10118-017-1946-1.
- DOI：10.1007/s10118-017-1946-1
  中图分类号：
- 收稿：2017-01-26，
  
  修回：2017-2-24，
  
  录用：2017-3-1，
  
  纸质出版：2017-07-05
- Accepted：
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Lin Tang, Fu-xin Liang, Qian Wang, 等. Polymer/Metal Segmental Janus Nanoparticles[J]. Chinese Journal of Polymer Science, 2017,35(7):799-808.

Lin Tang, Fu-xin Liang, Qian Wang, et al. Polymer/Metal Segmental Janus Nanoparticles[J]. Chinese Journal of Polymer Science, 2017, 35(7): 799-808.
Lin Tang, Fu-xin Liang, Qian Wang, 等. Polymer/Metal Segmental Janus Nanoparticles[J]. Chinese Journal of Polymer Science, 2017,35(7):799-808. DOI： 10.1007/s10118-017-1946-1.

Lin Tang, Fu-xin Liang, Qian Wang, et al. Polymer/Metal Segmental Janus Nanoparticles[J]. Chinese Journal of Polymer Science, 2017, 35(7): 799-808. DOI： 10.1007/s10118-017-1946-1.

摘要

Abstract

Polymer/metal composite segmental Janus nanoparticles (NPs) are synthesized by sequential growth against poly(4-vinylpyridine) (P4VP) crosslinked cP4VP-PS Janus NPs. A Janus cluster of poly(4-vinylpyridine)-block-polystyrene (P4VP-

-PS) diblock copolymer is self-organized after absorption onto a silica patchy sphere

via

hydrogen bonding. Selective crosslinking of P4VP leads to the formation of robust cP4VP-PS Janus NPs. Within the cP4VP domain

functional species such as metals are preferentially grown by

in situ

reduction. Other thiol-capped polymers

for example

thiol-capped poly(

-isopropylacrylamide) (PNIPAM-SH)

can be conjugated onto the opposite side to form polymer/metal triple segmental Janus NPs. The hyperthermia effect of Au NP of PNIPAM-Au@cP4VP-PS by near infrared (NIR) irradiation can trigger a fast transition from amphiphilic to hydrophobic of the Janus NPs at low surrounding temperature. De-stabilization of the emulsion is NIR triggered although the system temperature is below LCST (~32℃).

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references

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