The Journal Impact 2019-2020 of Polymer Chemistry is 4.790, which is just updated in 2020. Compared with historical Journal Impact data, the Factor 2019 of Polymer Chemistry dropped by 4.20%. The Journal Impact Quartile of Polymer Chemistry is Q1. The Journal Impact of an academic journal is a scientometric factor that reflects the yearly average number of citations that recent articles published in a given journal received. It is frequently used as a factor for the relative importance of a journal within its field; journals with higher Journal Impact are often deemed to be more important than those with lower ones. The Journal Impact measures the average number of citations received in a particular year (2019) by papers published in the journal during the two preceding years (2017-2018). Note that 2019 Journal Impact are reported in 2020; they cannot be calculated until all of the 2019 publications have been processed by the indexing agency. In addition to the 2-year Journal Impact, the 3-year Journal Impact can provide further insights and factors into the impact of Polymer Chemistry.