Photo-thermal polymerization of nanotube/polymer composites: Effects of load transfer and mechanical strength

The authors report a method where in-situ photon assisted heating of multi-wall carbon nanotubes was utilized for enhanced polymerization of the nanotube/ polydimethylsiloxane interface that resulted in significant load transfer and improved mechanical properties. Large Raman shifts (20 cm(-1) wavenumbers) of the 2D bands were witnessed for near-infrared light polymerized samples, signifying increased load transfer to the nanotubes for up to similar to 80% strains. An increase in elastic modulus of similar to 130% for 1 wt. % composites is reported for photon assisted crosslinking. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3698343]