Synthesis of crosslinked poly(styrene-<Emphasis Type="Italic">co</Emphasis>-divinylbenzene-<Emphasis Type="Italic">co</Emphasis>-sulfopropyl methacrylate) nanoparticles by emulsion polymerization: Tuning the particle size and surface charge density |
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Authors: | Dhamodaran Arunbabu Mousumi Hazarika Somsankar Naik Tushar Jana |
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Affiliation: | (1) Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Fenglin Street, Nanchang, 330013, Jiangxi, People’s Republic of China; |
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Abstract: | We have synthesized highly charged, crosslinked poly (styrene-co-divinylbenzene-co-sulfopropyl methacrylate) copolymer colloidal particles using emulsion polymerization. The effects of concentration of the
emulsifier and the initiator on the particle size and the charge density of the colloidal particles are studied. Colloidal
particle size is highly dependent upon the concentration of the emulsifier and the initiator. The colloidal particle diameter
decreases with increasing concentration of the emulsifier and increases with increasing concentration of the initiator in
the polymerization mixture. Number of particles, surface charge density and charges per particle are also functions of both
the emulsifier and the initiator concentration. The surface charge density and the number of charges per sphere increase with
increasing particle diameter. These copolymer colloid particles self assemble readily and diffract visible light. Polymer
hydrogel imbibed with these colloids shows the light diffraction. |
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