Poly (3,4-ethylenedioxythiophene), PEDOT, films were synthesized at room temperature by potentiodynamic and potentiostatic step deposition in aqueous solutions containing EDOT monomer and LiClO₄. In some solutions, the effect of small amounts of sodium dodecylsulfate, SDS, on the polymerization rate of EDOT and on the stiffness of the obtained PEDOT film was studied. The obtained PEDOT films were transferred in aqueous solutions containing cations with different molar mass, such as H⁺, Li⁺, Na⁺, K⁺, and Cs⁺. The apparent molar masses of the exchanged species during potentiodynamic experiments were determined by in situ microgravimetry. These measurements underlined the importance of the electrolyte chosen for electropolymerization process. It is known that SDS anions can be trapped inside the polymer layer during electropolymerization, providing them with a cation exchange behavior. However, even if the PEDOT films were deposited from an electrolyte without SDS, they still acted as cation exchangers.

在室温下，通过在含有EDOT单体和LiClO _4的水溶液中通过恒电位和恒电位分步沉积方法合成了聚（3,4-乙撑二氧噻吩）PEDOT薄膜。在某些解决方案中，研究了少量十二烷基硫酸钠SDS对EDOT的聚合速率和所得PEDOT膜的刚度的影响。将获得的PEDOT膜转移到含有不同摩尔质量的阳离子（例如H ⁺，Li ⁺，Na ⁺，K ⁺和Cs ^+）的水溶液中。通过原位微重力法测定电位动力学实验中交换物质的表观摩尔质量。这些测量结果强调了选择用于电聚合过程的电解质的重要性。已知在电聚合过程中，SDS阴离子可被截留在聚合物层内部，从而为它们提供阳离子交换行为。但是，即使PEDOT膜是从不含SDS的电解质中沉积的，它们仍然可以充当阳离子交换剂。