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(a) Schematic illustration describing the patterned synthesis of PAAc hydrogels containing C16A units via stereolithography. (c) FTIR spectra of the printed hydrogels containing various amounts of C16A together with pure PAAc and PC16A. The dashed vertical lines indicate wavenumbers of 1730, 2854, and 2920 cm–1 (from left to right). (d,e) 1H NMR spectra of PAAc-C16A monomer mixture (C16A mol % = 30) before (d) and after printing (e).
