Fig. 5 (a) Weight swelling
ratio (Q w ) and (b) Young’s
modulus (E) of PA hydrogel
P(NaSS-co-DMAEA-Q)
C m 0.52-x as a function of
monomer concentration
with different chemical
cross-linker density
MBAA x. Reproduced with
permission from Ref. [52]
Fig. 6 Stress-strain behavior of PA hydrogel P(NaSS-co-DMAEA-Q) synthesized at various
monomer concentrations without any chemical cross-linkers C m 0.52–0 (a) and at different chemical cross-linker density MBAA with the same C m 2.0-0.52-x (b). Reproduced with permission from
Ref. [52]
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T. L. Sun and K. Cui