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. 2022 Feb 28;61(17):e202115930. doi: 10.1002/anie.202115930

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© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Morphological changes upon dehydration of the polymer dense phases. The effect of irradiation at cryo‐TEM on the polymer dense phases of Sequence I (No. 1) and III (No. 9) (left and middle panels) showing that Sequence III particles dry into porous structures. Conventional TEM images of the corresponding air‐dried samples (right panels) confirm that Sequence III particles have net‐like mesostructures. Note that in contrast to SEM samples, the TEM samples were not centrifuged and washed, thus condensation and particle fusion were inhibited, leading to smaller and distinct particles.