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Citation: QI Gui-Bin, BEI Yi-Ling, LIU Qing-Yang, WANG Ai-Qin. Microemulsion Polymerization and Antifoam Emulsion Performance of Chloro-Octamethylcyclotetrasiloxane[J]. Chinese Journal of Applied Chemistry, ;2009, 26(1): 122-124. shu

Microemulsion Polymerization and Antifoam Emulsion Performance of Chloro-Octamethylcyclotetrasiloxane

1.
School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100

Corresponding author: BEI Yi-Ling,
Received Date: 23 November 2007
Available Online: 6 May 2008

The phase behavior of a pseudo-ternary system of chloro-octamethylcyclotetrasiloxane/CTAB/glycol/water was studied with a polarimicroscope,and the pseudo-ternary phase diagram at 80 ℃ was obtained.The microemulsion polymerization was carried out with varing ratios of components,and the nucleation mechanism was discussed according to the results of the particle size distribution analysis.The antifoam performance of the microemulsion was also investigated.Results show that the microemulsion polymerization took place in water phase.Moreover,the monomer droplets provided siloxane oligomers with end-hydroxyl,and the microemulsion exhibits a better antifoam emulsion performance than that of commercial emulsion due to the introduction of chloromethyl into the siloxane.
- chloro-octamethycyclotetrasiloxane,
- siloxane microemulsion,
- microemulsion polymerization,
- antifoam emulsion performance
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