Figure 4.
Viscosity η as a function of temperature for copolymers with the same NIPAAm content (A) and copolymers with the same R ratio (B) in a PBS solution (pH = 7.4, 15 wt%) at a frequency of 1 Hz and 1% strain.
Abbreviations: NIPAAm, N-isopropylacrylamide; PBS, phosphate-buffered saline; R ratio, molar ratio.