Dynamic scanning calorimetry (DSC) curves of free polymer and core-shell nanoparticles, orange-red: heating curves and green-blue: cooling curves. (a) Free polymer: light orange and light green: 0.1 g L−1, orange and green: 0.5 g L−1, red and blue: 1 g L−1and dark red and dark blue: 10 g L−1; (b) FeOx-5: light orange and light green: polymer concentration: 0.06 g L−1, orange and green: polymer concentration: 0.1 g L−1, light red and light blue polymer concentration: 0.5 g L−1, red and blue: polymer concentration: 1 g L−1 and dark red and dark blue: polymer concentration: 10 g L−1; (c) FeOx-7: light orange and light green: polymer concentration: 0.1 g L−1, orange and green: polymer concentration: 0.112 g L−1, light red and light blue polymer concentration: 0.5 g L−1, red and blue: polymer concentration: 1 g L−1 and dark red and dark blue: polymer concentration: 10 g L−1; (d) FeOx−10: light orange and light green: polymer concentration: 0.1 g L−1, orange and green: polymer concentration: 0.28 g L−1, light red and light blue: polymer concentration: 0.5 g L−1, red and blue: polymer concentration: 1 g L−1 and dark red and dark blue: polymer concentration: 10 g L−1; (e) FeOx-21: light orange and light green: polymer concentration: 0.1 g L−1, orange and green: polymer concentration: 0.5 g L−1, red and blue: polymer concentration:1 g L−1 and dark red and dark blue: polymer concentration: 10 g L−1.