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Citation: ZHAO Jun-Zi, WENG Zhi-Xue. The Effect of Polymerization Technology on the Thickening Property of Polyacrylate[J]. Chinese Journal of Applied Chemistry, ;2003, 20(8): 773-777. shu

The Effect of Polymerization Technology on the Thickening Property of Polyacrylate

ZHAO Jun-Zi ^a,, ,
WENG Zhi-Xue ^b

1.
a Department of Biology and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310012;
2.
b Institute of Polymer Science and Engineering, Zhejiang University, Hangzhou

Corresponding author: ZHAO Jun-Zi,
Received Date: 16 September 2002
Available Online: 22 April 2003

Solution polymerization and two different inverse emulsion polymerizations have been carried out to synthesize hydrophobically associative polyacrylate thickener. The thickening property of the products obtained were compared. The results showed that the inverse emulsion polymerization technology is more suitable for producing polyacrylate thickener than solution polymerization method. The anti electrolyte property of poly acrylate thickener obtained by inverse emulsion copolymerization of acrylic acid with hydrophobically associate monomer, synthesized from acylic acid and polyethylene fatty alcohol ether was found much improved. However, inverse emulsion copolymerization of acrylic acid with stearyl acrylate does not result in any improvement of anti electrolytic property of the thickener. When the amounts of NaHCO₃ and thickener in water, whose solid content was about 50%, were 2% and 4% respectively, the viscosity of water was 31.5 mPa·s while the retention of viscosity was about 34%.
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