Direct encapsulation of clay platelets inside latex particles

PMSE 36

D. J. Voorn, d.j.voorn@tue.nl1, W. Ming, W.Ming@tue.nl2, and A. M. van Herk1. (1) Lab of Polymer Chemistry, Eindhoven University of Technology, Eindhoven, 5600 MB, Netherlands, (2) Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, Netherlands
Encapsulation of exfoliated clay platelets by polymer has been shown to be very difficult. We present, for the first time, direct encapsulation of covalently modified clay platelets via surfactant-free, starved-feed emulsion polymerization. With cryo-TEM and SEM we showed that small Laponite platelets were encapsulated inside spherical latex particles, whereas larger montmorillonite platelets were encapsulated inside dumbbell-like or snowman-like non-spherical latex particles.
 

Nanotechnology Applications in Coatings
8:30 AM-12:00 PM, Sunday, 10 September 2006 San Francisco Marriott -- Salon C1, Oral

Division of Polymeric Materials: Science & Engineering

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006