Background: Deep eutectic solvents (DESs) represent a new generation of ionic liquids which are widely promoted as “green solvents”. They are gaining widespread application in materials chemistry and electrochemistry. DESs are defined as eutectic mixtures of quaternary ammonium salt with a hydrogen bond donor in certain molar ratios. Their use as solvents for electrochemical synthesis of conducting polymers could influence the polymer properties and reduce their economic cost.

Objective: This review presents the most recent results regarding the electropolymerization of common conductive polymers involving choline chloride based ionic liquids. New findings from our laboratory on the electrochemical growth of conductive polymers are also discussed.

Methods: The electrochemical polymerization mechanisms during synthesis of polypyrrole (PPy), polyaniline (PANI) and poly(3,4-ethylenedioxythiophene) (PEDOT) using various formulations of DESs are reviewed, as well as their characteristics, mainly from surface morphology view point.

Results: Some general information related to the preparation and characterization of DESs is also presented, followed by an overview of the recent advances in the field of electropolymerization using DESs.

Conclusion: Electropolymerization of conducting polymers involving DESs represents an attractive route of synthesis due to their compositional flexibility which makes possible the preparation of unlimited formulations further influencing the polymer morphology and properties. The use of these inexpensive eutectic mixtures has a large potential to contribute to the development of more sustainable technological processes meeting many of the required features characteristic to the green chemistry.

背景：深共熔溶剂（DES）代表了新一代离子液体，被广泛推广为“绿色溶剂”。它们正在材料化学和电化学领域得到广泛应用。DES被定义为季铵盐与氢键供体以一定摩尔比的共晶混合物。将它们用作导电聚合物的电化学合成的溶剂可影响聚合物的性能并降低其经济成本。

目的：这篇综述介绍了涉及基于氯化胆碱的离子液体的普通导电聚合物的电聚合的最新结果。还讨论了我们实验室对导电聚合物电化学生长的新发现。

方法：从表面形态学的角度，综述了使用各种DESs合成聚吡咯（PPy），聚苯胺（PANI）和聚（3,4-乙撑二氧噻吩）（PEDOT）期间的电化学聚合机理及其特性。 。

结果：还介绍了一些与DES的制备和表征有关的一般信息，然后概述了使用DES进行电聚合领域的最新进展。

结论：涉及DES的导电聚合物的电聚合由于其组成的灵活性而成为一种有吸引力的合成途径，这使得制备无限量的配方成为可能，从而进一步影响了聚合物的形态和性能。这些廉价的低共熔混合物的使用具有巨大的潜力，可以促进开发更具可持续性的工艺流程，从而满足绿色化学的许多必需特征。