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Citation: WANG Shu-Qin, ZHAO Yi. Synthesis and Characterization of Polystyrene/Alumina Composite[J]. Chinese Journal of Applied Chemistry, ;2008, 25(11): 1291-1295. shu

Synthesis and Characterization of Polystyrene/Alumina Composite

WANG Shu-Qin ^, ,
ZHAO Yi

1.
School of Environmental Science & Engineering, North China Electric Power University, Baoding 071003

Corresponding author: WANG Shu-Qin,
Received Date: 10 October 2007
Available Online: 8 January 2008
Fund Project:

Polystyrene/alumina was synthesized in sodium dodecyl sulphate(SDS),styrene/divinyl benzene in water with an ethanol concentration of 0.5 mol/L.The admicellar polymerization was a free radical polymerization initiated by azobisisobutyronitrile(AIBN).Effects of insoluble initiator dosage of AIBN,admicellar polymerization time and styrene concentration on the hydrophobility of the treated alumina were studied.The admicellar polymerization conditions were determined.The sodium dodecyl sulphate concentration was below its critical micelle concentration(CMC);the medium was 0.5 mol/L ethanol solution;the initiator was water insoluble AIBN;the mixing time of 24 h was determined according to the adsorption curve of sodium dodecyl sulphate on alumina;the reaction was heated to 60~70℃ in a temperature controlled water bath;polymerization time was 4 h.The results showed that the treated alumna was much more hydrophobic than the untreated one.The composite was characterized by UV-Vis,TGA,SEM and NMR.The analysis results showed that the hypothetical 'sandwich' or bilayer structure by admicellar polymerization was formed on the surface of alumina instead of the solution.
- admicellar polymerization,
- sodium dodecyl sulfate,
- styrene,
- alumina,
- divinyl benzene
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