Naslov
Preparation of monodisperse polystyrene latices

Autori
Deželić, Nada ; Petres, Josip J. ; Deželić, Gjuro

Izvornik
Kolloid-Zeitschrift & Zeitschrift für Polymere (0023-2904) 242 (1970), 1-2; 1142-1150

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
polystyrene latices ; monodispersity ; latex preparation

Sažetak
A series of monodisperse polystyrene latices was prepared by using the direct and the seeding emulsion polymerization methods. The recipes for their preparation are given in full detail. Best results were obtained when using Aerosol MA (a surfactant of the sulfosuccinate series) as the emulsifier. The particle size distributions were evaluated from electron microscopic data. The average size of latex particles ranged from 200 to 950 millimicrons. The polydispersity ratios being very near unity and modal frequencies about 95% indicate a very high monodispersity of latex preparations. The reproducibility of the particle size distribution parameters was remarkably good. Significant deviation from the Smith-Ewart mechanism was found. A possible mechanism of the emulsifier action in the formation of monodisperse latices is postulated.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA