Modified nanoparticles
and PMMA were mixed well in a THF solution and precipitated by adding
a small amount of DI water. The solvent was removed in a rotoevaporator
under vacuum, 70 °C, and rotating at a speed of 100 RPM. The
resulting mixture of polymer powder and grafted nanoparticles was
dried in a vacuum oven at 80 °C for 12 h to remove any remnant
solvent. The nanoparticle loading was tested using thermogravimetry,
and the requisite amount of PMMA powder was then added to achieve
a loading of about 1.5 weight percent. The resulting powder mixtures
were melt mixed in a Thermo Haake Minilab Twin Screw Extruder at 190
°C and 100 rpm for 10 min.
and PMMA were mixed well in a THF solution and precipitated by adding
a small amount of DI water. The solvent was removed in a rotoevaporator
under vacuum, 70 °C, and rotating at a speed of 100 RPM. The
resulting mixture of polymer powder and grafted nanoparticles was
dried in a vacuum oven at 80 °C for 12 h to remove any remnant
solvent. The nanoparticle loading was tested using thermogravimetry,
and the requisite amount of PMMA powder was then added to achieve
a loading of about 1.5 weight percent. The resulting powder mixtures
were melt mixed in a Thermo Haake Minilab Twin Screw Extruder at 190
°C and 100 rpm for 10 min.
