| abstract |
An object of the present invention is to provide a dispersant and a dispersion composition having excellent dispersibility to nano-carbon such as CNT. The dispersant of the present invention is characterized by containing a polyalkylene oxide having a structural unit represented by the following formula (1). L 1 and L 2 represent a straight chain alkylene group which may have a substituent, Z may be a linking group linking L 1 and Ar, or Z may not be present and L 1 and Ar may be directly bonded, Ar is represented by the following formula (1a), (1b) or (1c). |