The present invention aims to provide a dispersant and a dispersion composition that exhibit high dispersing ability for nano-carbons such as, in particular, CNTs. The dispersant according to the present invention includes a polyalkylene oxide having a structural unit of the following chemical formula (1).
In the chemical formula (1),
L1 and L2 are each a straight-chain alkylene group that may have a substituent,
Z is a linking group that links L1 and Ar, or alternatively, Z may not be present and L1 and Ar may be linked directly to each other, and
Ar is represented by the following chemical formula (1a), (1b), or (1c).
本发明旨在提供一种对纳米碳(尤其是 CNT)具有高分散能力的分散剂和分散组合物。根据本发明的分散剂包括一种聚环氧烷,其结构单元的
化学式如下(1)。
在
化学式(1)中
L1 和
L2 各为直链亚烷基,可带有取代基、
Z 是连接 L1 和 Ar 的连接基团,或者可以不含 Z,L1 和 Ar 直接相连,以及
Ar 用以下
化学式 (1a)、(1b) 或 (1c) 表示。