Highly charged hollow latex particles prepared via seeded emulsion polymerization
| Autor: | Pramuan Tangboriboonrat, Sukanya Nuasaen |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Surface Properties Dispersity Acrylic Resins Emulsion polymerization Charge density Methylmethacrylate Divinylbenzene Microspheres Surfaces Coatings and Films Electronic Optical and Magnetic Materials Polymerization Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Monomer chemistry Chemical engineering Dynamic light scattering Polymer chemistry Polystyrenes Emulsions Polyvinyls Methyl methacrylate |
| Zdroj: | Journal of colloid and interface science. 396 |
| ISSN: | 1095-7103 |
| Popis: | The carboxylated hollow latex (HL) particles possessing high surface charge density were conveniently prepared by using poly(styrene-co-acrylic acid) (P(St/AA)) as seed particles and methyl methacrylate (MMA)/divinylbenzene (DVB)/AA as monomers. Without seed removal, the hollow structure was simply tuned by adjusting the monomer/seed ratio and the monomer content. The monodisperse, spherical, and non-collapsed HL particles with double shell having the void of 280 nm were obtained from P(St/AA) seeds of 300 nm. The conductimetric back titration, SEM, TEM, and dynamic light scattering measurement revealed that the surface charge density, surface roughness, and size of HL particles significantly increased when applying the stepwise charging monomers/initiator. The highly charged HL particles would be well dispersed in coating film providing good optical properties, for example, opacity and whiteness. |
| Databáze: | OpenAIRE |
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