Citation: Dong Zou, Xiu-fen Li, Xiao-li Zhu, Xiang-Zheng Kong. PREAPARATION OF CATIONIC LATEXES OF POLY(STYRENE-CO-BUTYL ACRYLATE) AND THEIR PROPERTIES EVOLUTION IN LATEX DILUTION[J]. Chinese Journal of Polymer Science, ;2012, 30(2): 278-286. doi: 10.1007/s10118-012-1113-7 shu

PREAPARATION OF CATIONIC LATEXES OF POLY(STYRENE-CO-BUTYL ACRYLATE) AND THEIR PROPERTIES EVOLUTION IN LATEX DILUTION

Received Date: 27 April 2011
Revised Date: 27 May 2011

Fund Project: This work was supported by the Natural Science Foundation of Shandong Province, China (No. Z2008B07) and by the National Natural Science Foundation of China (No. 20874040).

Cationic latexes were prepared through emulsion copolymerization of styrene (St) and butyl acrylate (BA) with a cationic surfactant, cetyl trimethyl ammonium bromide (CTAB). Latex properties, including particle size, size distribution, potential, surface tension and monomer conversion, were determined for latexes prepared with different CTAB amounts. Evolution of these properties during emulsion polymerization was followed in order to understand the mechanism of the particles formation. Results showed that both particle size and potential were function of polymerization time and latex solids. Parallel emulsion polymerizations with cationic, anionic charged initiator and charge-free initiators were also carried out, the latex properties were determined at different polymerization time. All these results were attentively interpreted based on the mechanisms of emulsion polymerization, surfactant adsorption and latex particle stabilization.
- Cationic latex
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