Maghemite Intercalated Montmorillonite as New Nanofillers for Photopolymers

作者：Tarablsi Bassam; Delaite Christelle; Brendle Jocelyne^*; Croutxe Barghorn Celine

来源：Nanomaterials, 2012, 2(4): 413-427.

DOI：10.3390/nano2040413

• montmorillonite
• ion exchange
• maghemite
• nanocomposites
• photopolymerization

In this work, maghemite intercalated montmorillonite (gamma Fe2O3-MMT)/polymer nanocomposites loaded with 1 or 2 wt.% of nanofillers were obtained by photopolymerization of difunctional acrylate monomers. The gamma Fe2O3-MMT nanofillers were prepared by a new method based on the in situ formation of maghemite in the interlayer space of Fe-MMT using a three step process. X-ray diffraction (XRD), chemical analysis, TG/DTA and transmission electron microscopy (TEM) characterization of these nanofillers indicated the efficiency of the synthesis. When following the kinetics of the photopolymerization of diacrylate-gamma Fe2O3-MMT nanocomposites using FTIR spectroscopy no significant inhibition effect of the nanofillers was observed at a loading up to 2 wt.%. These innovative nanocomposites exhibit improved mechanical properties compared to the crude polymer.

• 出版日期2012-12