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Citation: ZHANG Lei, ZHAO Zhong-Yuan, JIN Yan-Li, LI Qi. Surface Modification of Nano-TiO₂ by in-situ Grafting Polymerization of Butyl Methacrylate[J]. Chinese Journal of Applied Chemistry, ;2009, 26(5): 547-550. shu

Surface Modification of Nano-TiO₂ by in-situ Grafting Polymerization of Butyl Methacrylate

ZHANG Lei ^a,, ,
ZHAO Zhong-Yuan ^a ,
JIN Yan-Li ^b ,
LI Qi ^a

1.
a College of Chemistry, Liaoning University, Shenyang 110036;
2.
b Military Representative Bureau in Shenyang Navy Equipment Department, Shenyang

Corresponding author: ZHANG Lei,
Received Date: 18 April 2008
Available Online: 30 June 2008
Fund Project: 辽宁省教育厅科学技术研究(20060363和2007T053)资助项目 (20060363和2007T053)

Silane coupling agent was used to introduce polymeric groups containing C=C onto the surface of nano-TiO₂ particles by self-assembly technique.Then in-situ grafting polymerization was carried out between the functionalized particles and butyl methacrylate monomer to modify the surface of nano-TiO₂.The effects of different reaction conditions on the grafting degree were studied,and the optimal conditions for the experiment were 5:6 the ratio of toluene to butyl methacrylate(BMA),0.5% initiator,0.125 mol/L of the modified nano-TiO₂,3 h reaction time,and 90 ℃ reaction temperature,and the grafting degree was 13.9%.FTIR,TG and UV-Vis results showed that new organic chains were introduced onto the surface of nano-TiO₂,and the dispersion stability of the nano-TiO₂ in organic phase was obviously improved.
- nano-TiO₂,
- silane coupling agent,
- butyl methacrylate,
- grafted polymerization
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Surface Modification of Nano-TiO₂ by in-situ Grafting Polymerization of Butyl Methacrylate