Mitsubishi Chemical Corporation

Yukiko Hachiya

Masashi Uzawa

Kohei Yamada

Takahiro Sakai

Yasushi Horiuchi

Tamae Takagi

When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25&#xb0; C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C). 

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Yokohama, Japan

Yukiko Hachiya