Fig. 2
From: Adjacent cationic–aromatic sequences yield strong electrostatic adhesion of hydrogels in seawater

Monomer polymerization kinetics. a–c Monomer conversions for ATAC/PEA monomer pair (R1 = R2 = H) at different total molar concentrations. d Monomer conversions for MATAC/PEMA monomer pair (R1 = R2 = CH3) at 1.0 M. The monomer ratios of all pairs are 1:1. e Solubility of copolymers obtained in DMSO, water, and seawater. The circle and cross refer to “soluble” and “insoluble”, respectively