Successful attempts to produce high-molecular-weight polyanilines via electrochemical synthesis are reported. A systematic study of the influence of electropolymerization conditions on the weight-average molecular weight (Mw) showed that Mw of polyaniline varied only between about 22 000 and 40 000 g mol- 1, even for a wide range of conditions. Significant increases in Mw are only obtained when a neutral salt is added to the electrolyte. Mw can be increased up to 160 000 g tool-1 by increasing the LiC1 concentration to about 6 M. This salt effect on M, is consistent with electrostatic charge screening effects.
Посилання на статтю:
Influence of electropolymerization conditions on the molecular weight of polyaniline / L. H. C. Mattoso* and R. M. Faria and L. O. S. Bulh6es // Polymer. – 1994. – Vol 35. – P. 5104-5108.