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. 2020 Jan 30;8:36. doi: 10.3389/fchem.2020.00036

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Copyright © 2020 Shen, Shen, Shen, Wu, Chen and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Optical image of Gel II composed of different monomers (including AAm, DMAA, NIPAM, and PEGMA); (B) Compressive tests of Gel II composed of different monomers (including AAm, DMAA, NIPAM, and PEGMA). (C) The conversion of AAm in Gel II is calculated using the ¹H-NMR spectra.