Evolution and evaluation of the polymer nanotube composite

Composite structures, using MWNT and SWNT and the polymer PmPV exhibit prop erties which enhance those of the individual components. The polymer PmPV c an act as an organic filter for the multiwalled system where the MWNT are i ndefinitely suspended in the polymer solution while the carbonaceous materi al falls out of solution. Raman measurements of this show a complete reduct ion of the amorphous line at 1350 cm-1. We see that we can alter the lumine scence quantum yield of the composite, where the effects are different depe nding on which nanotubes are used. When we examine the SWNT/PmPV the quantu m yield is increased. The MWNT composite also shows strong non-linear optic al signal. The pristine polymer has an chi((3)) of 10(-11) esu whereas the composite chi((3)) is -10(-10) esu.