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. 2018 Jul 19;10(7):791. doi: 10.3390/polym10070791

Figure 1.

Figure 1

(a) The temperature dependence of the hydrodynamic radius of the P(NIPAM-co-APMA) microgel particles, where P(NIPAM-co-APMA) stands for poly(N-isopropylacrylamide-co-N-(3-aminopropyl)methacrylamide), at pH 5.5 (α ≅ 1.0) and pH 9.5 (α ≅ 0.45). (b) The pH-dependence of the protonation degree α of the P(NIPAM-co-APMA) microgel obtained from the potentiometric titration data (blue circles) and the electrophoretic mobility (EPM) values of the microgel particles at different pH-values obtained at 25 °C by laser microelectrophoresis (red circles).