Editorial: Polymer Chemistry Editor's Pick 2021

The section Polymer Chemistry of the journal Frontiers in Chemistry was born with the scope ofwitnessing, disseminating and fostering the advancements of the discipline of macromolecularscience in its broadest significance. The opening of a specific section devoted entirely to thissubject was justified by the profound impact this discipline and the outcomes of its researchefforts have had and continue to have on our everyday life. As stated in the inaugural article(Musto) "Despite the astonishing achievements we have witnessed along the years, manyexciting challenges remain to be faced, including green polymer chemistry, environmentalpollution issues, polymers for energy storage and delivery, polymers for the human health."Seven years after its launch, we may say that, so far, the section has accomplished the tasks itwas created for. The readership is growing, as well as the community of editors and qualifiedauthors. Many interesting papers have appeared, addressing the most relevant challengescurrently open, with special emphasis on health related issues. It was therefore decided,according with the editorial office, that the time was mature to realize a Research Topic,assembling a collection of articles that could give to the reader an outlook of the section activityand a summary of its main achievements.