RETRACTION: Fabrication of PVDF Mixed Matrix Nanofiltration Membranes Incorporated With TiO2 Nanoparticles and an Amphiphilic PVDF-g-PMMA Copolymer

RETRACTION: H. Mahdavi, N. Zeinalipour and A. A. Heidari, “ Fabrication of PVDF Mixed Matrix Nanofiltration Membranes Incorporated With TiO2 Nanoparticles and an Amphiphilic PVDF-g-PMMA Copolymer,” Journal of Applied Polymer Science 139, no. 37 (2022): e52740, https://doi.org/10.1002/app.52740.

The above article, published online on 13 June 2022 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, Stefan Spiegel; and Wiley Periodicals, LLC. The retraction has been agreed upon due to several instances of duplication of elements identified within Figures 4a and within Figures 5a-f. Additionally, unexpected similarities were observed within the spectra presented in Figure 3. These same similarities, along with elements of Figures 4a and 4e, also appear in figures published earlier, in the same year, elsewhere, by the same authors. Although the authors collaborated with the investigation, the extent of the identified issues led the editors to lose confidence in the data presented, considering the conclusions to be compromised. The authors were informed of the retraction.