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With the continuous advancement of nanotechnology , materials science research gradually miniaturized , multi-functional, integrated, intelligent direction. In many materials , the core-shell material is presented because of its special structure and composition of the different optical, electrical , magnetic , catalytic properties , attracting much attention in recent years . Its essence is to be designed to achieve the desired application effect by the surface characteristics of the particle . But how to prepare the structure of the core-shell materials with controlled performance is still the problem of today 's materials research , is one of the important direction of the development of materials science . This paper studies : ( 1 ) in the presence of carbon black , emulsion polymerization, polymer coated carbon black , inorganic / organic core-shell materials . First studied the presence of carbon black , styrene and acrylic emulsion polymerization, emulsion polymerization initiator agent , carbon black type and amount , temperature and polymerization Atmosphere , aimed at how to obtain a higher conversion rate and stabilizing system . Due to statistical reasons , will always be formed of carbon black - free pure polymer and / or carbon black aggregates , hybrid particles . Therefore, the design of the hydrophilic monomer acrylonitrile polymer coated carbon black, results been monodisperse preferably carbon black / polyacrylonitrile core-shell particles . 2 as a template polymer microspheres obtained by emulsion polymerization , particle surface epitaxial situ deposition prepared organic / inorganic core-shell materials . Using the functional monomer acrylic acid and styrene copolymer , or oleic acid as an emulsifier for styrene homopolymerization, -COOH is introduced to the surface of the microspheres . Silver ammonia solution under alkaline conditions , due to the Ag ( NH 3 < / sub >) 2 -COO - electrostatic interactions between the Ag ( NH 3 < / sub> ) 2 < / SUP > is rapidly adsorbed onto the surface of the microspheres - COO - around the Ag ( the NH 3 < / sub >) 2 OH thermal decomposition , so that the Ag and its oxides deposited onto the surface of the microspheres . Focused on the modification methods , reducing agents , NaOH dosage as well as the influence of temperature on the particle morphology . FTIR, DTA, TG, TEM, SEM, XPS, XRD detection methods such as functional latex particles as well as the core-shell particle characterization and determination .
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