Citation: Xiang Zheng Kong, Chen Wang, Xu Bao Jiang, Xiao Li Zhu. A novel associative latex thickener using ethoxylated behenyl methacrylate as functional monomer[J]. Chinese Chemical Letters, ;2010, 21(5): 616-619. doi: 10.1016/j.cclet.2009.12.021 shu

A novel associative latex thickener using ethoxylated behenyl methacrylate as functional monomer

College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China

Received Date: 27 September 2009

Fund Project: This research is financial supported by NSFC (No. 20874040).

Alkali-soluble associative latex thickeners modified with hydrophobic long chain alkyl groups were prepared using common acrylics and varying amount of a functional monomer, ethoxylated behenyl methacrylate (BEM), through emulsion polymerization. It was found that the size of the emulsion particle became larger with addition of BEM. The light transmittance of the thickener latex sharply increased with pH varied from 6 to 7. The associative latex thickener manifested a higher viscosity when solids in the latex thickeners were kept at 0.5 wt% or higher, and the optimal amount of BEM was found to be around 2.5 wt%, or 0.16 mol%. All thickener latexes modified with BEM have better shearing resistance than the BEM-free thickener.
- Associative thickener,
- Functional monomer,
- Ethoxylated behenyl methacrylate,
- Viscosity
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