PEGYLATED SINGLE-WALLED CARBON NANOTUBES WITH GELABLE BLOCK COPOLYMERS

Cheng Zhang; Wen Zhu; Lei Gao; Yong-ming Chen

doi:10.1007/s10118-011-1068-0

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PEGYLATED SINGLE-WALLED CARBON NANOTUBES WITH GELABLE BLOCK COPOLYMERS

Updated：2021-06-21

- PEGYLATED SINGLE-WALLED CARBON NANOTUBES WITH GELABLE BLOCK COPOLYMERS
- Chinese Journal of Polymer Science Vol. 29, Issue 6, Pages: 762-771(2011)
- Affiliations：
  
  Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China
- Author bio：
  
  **Yong-ming Chen (陈永明), E-mail: ymchen@iccas.ac.cn
- Funds：
- DOI：10.1007/s10118-011-1068-0
  CLC：
- Received：11 April 2011，
  
  Revised：2011-04-27，
  
  Accepted：03 May 2011，
  
  Published：2011
- Accepted：
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Cheng Zhang, Wen Zhu, Lei Gao, et al. PEGYLATED SINGLE-WALLED CARBON NANOTUBES WITH GELABLE BLOCK COPOLYMERS[J]. Chinese Journal of Polymer Science, 2011, 29(6): 762-771.
DOI：

Cheng Zhang, Wen Zhu, Lei Gao, et al. PEGYLATED SINGLE-WALLED CARBON NANOTUBES WITH GELABLE BLOCK COPOLYMERS[J]. Chinese Journal of Polymer Science, 2011, 29(6): 762-771. DOI： 10.1007/s10118-011-1068-0.

摘要

Abstract

Functional amphiphilic block copolymer poly(ethylene glycol)-

block

-poly[(3-(triethoxysilyl)propyl methacrylate)-

-(1-pyrene-methyl) methacrylate]

PEG

113

-P(TEPM

-PyMMA

)

was synthesized

via

atom transfer radical polymerization (ATRP) initiated by monomethoxy capped poly(ethylene glycol) bromoisobutyrate. This polymer exhibited strong ability to disperse and exfoliate single-walled carbon nanotubes (SWNTs) in different solvents due to the adhesion of pyrene units to surface of SWNTs. In aqueous solution

the PTEPM segments that were located on the nanotube surfaces with the pyrene units could be gelated and

as a result

the silica oxide networks with PEG coronas were formed on the surface of nanotubes

which ensured the composites with a good dispersibility and stability. Furthermore

functional silane coupling agents

3-mercaptopropyltrimethoxysilane and 3-aminopropyltriethoxysilane

were introduced during dispersion of SWNTs using the block copolymers. They were co-gelated with PTEPM segments

and the —SH and —NH

functionalities were introduced into the silica oxide coats respectively.

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