| Titre : |
Miniemulsions : Overview of research and applications |
| Type de document : |
texte imprimé |
| Auteurs : |
Mohamed S. El-Aasser, Auteur ; E.-D. Sudol, Auteur |
| Année de publication : |
2004 |
| Article en page(s) : |
p. 21-31 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Cinétique chimique
Latex
Miniémulsions
Nucléation
Polymères en émulsion
Polymérisation
Polymérisation en émulsion
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Since their discovery 30 years ago, miniemulsions have been the subject of numerous investigations ranging from the fundamental to the applied. This unique type of oil-in-water emulsion is chiefly characterized by its droplet size and relative stability. High shear is typically applied today to create the small size droplets (anywhere in the range of 50-500 nm) and the combination of a surfactant and a low molecular weight, highly water insoluble costabilizer is used to maintain their stability against collisional and diffusional (Ostwald ripening) degradation. The low molecular weight of the costabilizer is also responsible for the high swelling capacity of the droplets and polymer particles (made by emulsification of polymer solutions, polymerization of monomer miniemulsions, or a combination of these). These features of high stability and swelling capacity distinguish miniemulsions from conventional emulsions and have been exploited to make latexes not possible by conventional emulsification or emulsion polymerization processes. These include artificial latexes made by direct emulsification of a polymer solution followed by removal of the solvent, synthetic latexes made by polymerization of monomer miniemulsions, hybrid latexes made by emulsification of a monomer/polymer solution followed by polymerization, and encapsulated latexes. Most recently miniemulsions have been applied in controlled radical polymerizations whereby relatively narrow molecular weight polymers are produced. In general, our research efforts in miniemulsions have covered the fundamentals of their formation and stabilization, polymerization kinetics, and mechanisms, and look forward to possible applications. An overview of this research is presented here. |
| DOI : |
10.1007/s11998-004-0021-3 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0021-3.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3929 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 1 (01/2004) . - p. 21-31
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Miniemulsions : Overview of research and applications in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 1 (01/2004)
