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A Development of Nontoxic Composite Latex Using $CaCO_3$/PEMA  

Seul, Soo-Duk (Department of Chemical Engineering, Dong-A University)
Lee, Sun Ryong (Department of Chemical Engineering, Dong-A University)
Lee, Nae-Woo (Department of Safety Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Safety / v.17, no.4, 2002 , pp. 133-139 More about this Journal
Abstract
Core-shell polymers of inorganic/organic pair, which are consisted of both core and shell component, were synthesized by sequential emulsion polymerization using ethyl methacrylate (EMA) as a shell monomer and ammonium persulfate as initiator. We found that $CaCO_3$ core should be prepared by adding 2.0wt% SDBS(sodium dodecyl benzene sulfonate), $CaCO_3$ core/PEMA shell polymerization was carried out on the surface of $CaCO_3$ particle during EMA shell polymerization in the core-shell polymer preparation. The structure of core-shell polymer were investigated by measuring the degree on decomposition of $CaCO_3$ by HCI solution, thermal decomposition of polymer composite on thermogravimetric analyzer, glass transition temperature on differential scanning calorimeter, and morphology using scanning electron microscope.
Keywords
core-shell; $CaCO_3$; ethyl methacrylate; DSC;
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