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Preparation of polyaniline nanostructures doped with different dicarboxylic acids through template-free method

Sun C, Wang Y.

Materials Science Poland

2014

Vol. 32, No. 3

419—422

Department of Materials Chemistry, Yinuo Institution, Changchun, 130033, China In this article nanoscaled polyanilines (PANI) were prepared based on template-free method in the presence of dicarboxylic acid dopants (e.g. D-tartaric acid, succinic acid, maleic acid and fumaric acid). The trans-cis isomerization of butenedioic acid played an important role in the formation of nanostructures from the plane-like to nanofibers, and the PANI doped with maleic acid (MA) had larger diameter, higher crystallinity and conductivity than PANI doped with fumaric acid (FA).

Electrical conductivity in new imidazolium salts of dicarboxylic acids

Pogorzelec-Glaser K., Garbarczyk J., Pawlaczyk C., Markiewicz E.

Materials Science Poland

2006

Vol. 24, No. 1

245--252

Electrical conductivities of powder samples of five new imidazolium salts of aliphatic dicarboxylic acids (imidazolium malonate (1), imidazolium glutarate (2), imidazolium adipate monohydrate (3), diimidazolium suberate (4), imidazolium sebacate (5) were measured by impedance spectroscopy as a function of temperature. It was found that conductivities increase with temperature. At high temperatures, the lowest conductivity was determined for imidazolium glutarate (10-5 S/m) and the highest - for imidazolium sebacate (10-1 S/m). The correlation between crystal structures of the investigated salts and their ionic conductivities is discussed.