Abstract
Epoxy-based composites with modified carbon nanotubes (CNTs) were synthesized using different types of CNTs. These were first modified by amidation of the carboxylic groups from the CNT’s surface and then embedded into the epoxy matrix. The modified CNTs and the corresponding composites were analyzed by FTIR, TGA, DMA and Raman Spectroscopy. The influences of CNT type and the nature of the organic modifier were pointed out in connection with the composites structure. Keywords: functionalization, carbon nanotubes, polymer nanocomposites, thermostability, Raman Spectroscopy