The multiple-wall carbon nanotubes (MWNT) with double bond were synthesized by the reaction of the hydroxyl on the hydroxyl containing MWNT and maleic anhydride, which were further modified by styrene to obtain the poly(styrene-co-maleic anhydride) (SMA) fuctionalized MWNT. The directly importing group method by the reaction between MWNT-OH and SMA was also used for acquiring the SMA functionalized MWNT. The characterization results of IR, Raman, TEM and TG proved the existence of chemical bonds between nanotubes and poly(styrene-co-maleic anhydride).

Key words: multiple-wall carbon nanotube, maleic anhydride, poly(styrene-co-maleic anhydride), chemical modification