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Retraction Note to: Colloid and Polymer Science (2020) 299:93-104 https://doi.org/10.1007/s00396-020-04774-6
The Editor-in-Chief has retracted this article because it contains material that substantially overlaps with other articles [1, now retracted, 2, 3].
Chengyun Yuan has stated on behalf of all co-authors that they agree to this retraction.
References
RETRACTED ARTICLE: Yuan C, Wang Y (2020) Synthesis and characterization of a novel locally high dense sulfonated poly (aryl ether ketone sulfone) for DMFCs applications. J Polym Res 27, 318. https://doi.org/10.1007/s10965-020-02,282-3
Yuan C, Wang Y (2020) Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone)semi-crosslinked membrane with high proton selectivity through click reaction for direct methanol fuel cells. High Perform Polym 15:0954008320960216. https://doi.org/10.1177/0954008320960216
Yuan C, Wang Y (2020) The preparation of novel sulfonated poly (aryl ether ketone sulfone)/TiO2 composite membranes with low methanol permeability for direct methanol fuel cells. High Perf Polym 15:0954008320958044. https://doi.org/10.1177/2F0954008320958044
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Yuan, C., Wang, Y. Retraction Note to: Synthesis and characterization of a novel sulfonated poly (aryl ether ketone sulfone) containing rigid fluorene group for DMFCs applications. Colloid Polym Sci 301, 73 (2023). https://doi.org/10.1007/s00396-022-05042-5
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DOI: https://doi.org/10.1007/s00396-022-05042-5