I wanted to diposite a polymer on nanoparticles,but the TEM results shows that that the polymer diposite on an aggregated nanopartilces together. is that a problem of the nanoparticles dispertion before reaction? and what is the appropriate nanoparticles concentration to have a good TEM images?
Dear Rahoui Nahla,
if you give more details on your nanopaticles (which particles, synthesis) it is possible to answer your last question. Two first questions are unclear. May be you can provide some TEM images with comments what you did and what you want to do.
Nano-particles have a tendency to agglomerate, if they are not dispersed well. Thus, use an ultrasonic bath to disperse the particles thoroughly. The reaction must be carried out immediately after dispersion.
It is difficult to figure out the issue without knowing the nature of your nanoparticles (charged or not) and polymer (neutral polymer or polyelectrolytes).
It is difficult to figure out the issue without knowing the nature of your nanoparticles (charged or not) and neutral polymer.
You have the possibility to modify the surface of the nanoparticles? So that that have greater affinity for your polymer.
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