Citation: Qi-guang Wang, Fu-xin Liang, Qian Wang, Xiao-zhong Qu, Zhen-zhong Yang. Responsive Composite Janus Cages[J]. Chinese Journal of Polymer Science, ;2015, 33(10): 1462-1469. doi: 10.1007/s10118-015-1691-2 shu

Responsive Composite Janus Cages

1.
State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 27 March 2015
Revised Date: 7 April 2015

Fund Project: This work was financially supported by the Ministry of Science and Technology of China (No. 2012CB933200) and the National Natural Science Foundation of China (Nos. 51233007 and 51173191).

pH responsive composite Janus cages of PS-silica-PEO are prepared using silica nanoparticles to crosslink two PAA contained di-block copolymers at an emulsion interface sequentially. Transverse channels are in situ created across the shell, which facilitates mass transfer. Shell is pH responsive owing to the presence of residual PAA chains tethered onto the silica nanoparticles. The Janus cages are capable to preferentially capture oil from their aqueous surroundings. The saturation absorption capacity is determined by pH and oil property. Other composite Janus cages are expected by extension the method using other copolymers and functional nanoparticles.
- Janus cages,
- Block copolymer,
- Composited,
- pH response,
- Emulsion
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