The increasing environmental awareness has led to the search for alternative reaction media to reduce or eliminate the use of organic solvents in polymer science. Deep eutectic solvents (DESs), a subclass of ionic liquids, have emerged as sustainable solvents for a plethora of chemical reactions. In this Trend Article, DES utilization in free-radical polymerizations will be discussed. Two main fields of application are reported. In the first section, monomers able to undergo free-radical polymerization while taking part in a DES, as hydrogen bond donor or ammonium salt, so called DES monomers, are presented. In the second section, the role of DESs as solvents, where the polymerization takes place, either in the same phase or in an emulsion, is described. Finally, the properties of the polymers resulting from these particular methods of synthesis are discussed with emphasis on their green aspects.

日益增长的环境意识导致人们寻求替代反应介质，以减少或消除聚合物科学中有机溶剂的使用。离子液体的一类深共熔溶剂（DES）已成为许多化学反应的可持续溶剂。在这篇趋势文章中，将讨论自由基聚合中DES的利用。报告了两个主要的应用领域。在第一部分中，提出了能够在参与DES的同时进行自由基聚合的单体，如氢键供体或铵盐，即所谓的DES单体。在第二部分中，描述了DES作为溶剂的作用，在该溶剂中，聚合是在同一相中或在乳液中进行的。最后，