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. Author manuscript; available in PMC: 2018 Dec 3.
Published in final edited form as: J Appl Polym Sci. 2012 Aug 1;128(3):1804–1814. doi: 10.1002/APP.38335

Figure 4.

Figure 4.

SEM images of hydrogels after reaching swelling equilibrium at pH 6.5 below LCST at 25°C (A and B: surface and cross-sections, respectively) and above LCST at 40°C (C and D: surface and cross-sections, respectively).