RETRACTED: Screening of hindered phenol antioxidants by quantum chemical method for improving the aging properties of polyurethane railpad in railway

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy). This paper is retracted at the request of the authors. Following acceptance and publication of this paper, the corresponding author requested that four new co-authors be added to the paper. The Editors have denied this request on the basis that it constitutes a form of authorship manipulation. The authors have therefore requested retraction and the Editors have agreed to this.